| Family | Scientific Name | Subspecific Category | County | Locality | Tshp•Range•Sec. | Collector's Notes |
Collector | Collection Number |
Collection Date |
Collection Year |
Special Notes and Annotations |
Accession Number |
| Cabombaceae | Brasenia schreberi Gmel. | . | Hancock. | Pilot Knob State Park, Dead Man's Lake | . | NW corner of open water | Hulbary, R.L. | . | 8/4/1959 | 1959 | Iowa Nat. Areas Inventory Jeanne N. Bates 1983-08-06 | 3883 |
| Cactaceae | Opuntia fragilis (Nutt.) Haw. | . | Lyon. | Gitchie Manitou Park | . | Quartzite. Co, base to tip, from pale greenish yellow thru yellow to white. | Grant, Martin L. | 12190 | 6/26/1954 | 1954 | Iowa Nat. Areas Inventory Jeanne N. Bates 1983-08-05 | 1972 |
| Callitrichaceae | Callitriche heterophylla Pursh | . | Johnson. | Cedar twnshp. Sec. 12, SW 1/4. | . | Small ponds or marshy depressions in sand-hills. | Thorne, Robert F. | . | 5/14/1955 | 1955 | Iowa Nat. Areas Inventory Jeanne N. Bates 1983-08-05 | 4478 |
| Callitrichaceae | Callitriche palustris L. | . | Dickinson. | Four Mile Lake-eastern edge of Dickinson County. | . | Shallow water | Shook, A. D. & E. O. Beal | 72 | 8/3/1950 | 1950 | Annot.: = C. verna [anon.] Iowa Nat. Areas Inventory Jeanne N. Bates 1983-08-05. [Callitriche verna is a synonym for C. palustris. The plant list (www.theplantlist.org)] | 885 |
| Campanulaceae | Campanula americana L. | . | Dickinson. | Little Sioux, W. of Milford | . | . | Miller, L.W. | . | 7/22/1933 | 1933 | . | 1232 |
| Campanulaceae | Campanula americana L. | . | Clayton. | Along base of bluff S. of McGregor. | . | . | Shimek, Bohumil | . | 10/14/1922 | 1922 | . | 2354 |
| Campanulaceae | Campanula americana L. | . | Dickinson. | 2 miles west of Milford, along the Little Sioux River. | . | Upland woods | Severe, Doris | 5 | 7/18/1957 | 1957 | . | 2659 |
| Campanulaceae | Campanula americana L. | . | Dickinson. | Arnold's Park | . | Woods | Shimek, Bohumil | . | 8/9/1910 | 1910 | . | 2660 |
| Campanulaceae | Campanula americana L. | . | Dickinson. | Sunset beach. Sec. 30, SW-SW 1/4. | T99N_R36W_Sec30 | Moist, rich wooded ravine. | Thorne, Robert F. | 14461 | 7/29/1954 | 1954 | . | 4450 |
| Campanulaceae | Campanula americana L. | . | Dickinson. | Swan Lake. Sec. 23, SW-SW. | T100N_R35W_Sec23 | Oak woods. Co blue | Grant, Martin L. | 11185 | 7/14/1949 | 1949 | . | 1233 |
| Campanulaceae | Campanula americana L. | . | Dickinson. | W. of Little Sioux River, NW of Milford. Sec. 4, NW 1/4-NW 1/4. | T98N_R37W_Sec4 | Hanging bog | Shimek, Bohumil | . | 8/17/1924 | 1924 | . | 2661 |
| Campanulaceae | Campanula aparinoides Pursh | . | Cerro Gordo. | Mason City | . | . | Shimek, Bohumil | . | 07/07/1896 | 1896 | !, PHM, 1952 | 2663 |
| Campanulaceae | Campanula aparinoides Pursh | . | Clay. | Barringer Slough. Sec. 11, SW-SW. | T96N_R35W_Sec11 | Marsh. Co white, turning blue | Grant, Martin L. | 12389 | 7/30/1954 | 1954 | . | 2541 |
| Campanulaceae | Campanula aparinoides Pursh | . | Clay. | Dewey's pasture | T97N_R35W_Sec25 | Slough margin | Grant, Martin L. | 8917 | 8/10/1948 | 1948 | . | 1234 |
| Campanulaceae | Campanula aparinoides Pursh | . | Dickinson. | . | T98N_R37W_Sec4 | Moist ground | Shook, A. D. & E. O. Beal | 61 | 8/4/1950 | 1950 | Orig. i.d.: Campanula uliginosa Rydb. Annot.: = C. aparinoides Pursh. [anon.] | 1238 |
| Campanulaceae | Campanula aparinoides Pursh | . | Dickinson. | Lower Gar Lake and adjacent hanging bogs. Sec. 32, SE1/4. | T99N_R36W_Sec32 | Sandy shore and marsh. | Thorne, Robert F. | 18604 | 8/15/1957 | 1957 | . | 4452 |
| Campanulaceae | Campanula aparinoides Pursh | . | Dickinson. | Manhattan Slough. Lakeville twnshp. Sec. 14, NE 1/4. | . | . | Thorne, Robert F. | 14436 | 7/26/1954 | 1954 | . | 4451 |
| Campanulaceae | Campanula aparinoides Pursh | . | Hancock. | Pilot Knob Park, Dead Man's Lake. | . | Sphagnum bog. Corolla white, 11mm. long | Grant, Martin L. | 12523 | 8/21/1954 | 1954 | . | 2662 |
| Campanulaceae | Campanula aparinoides Pursh | . | Hancock. | Pilot Knob State Park | T97N_R23W_ Sec3&4 | Floating mat. | Thorne, Robert F. | 14571 | 8/10/1954 | 1954 | . | 4582 |
| Campanulaceae | Campanula aparinoides Pursh | . | Muscatine. | N. of Bayfield | . | Low place | Shimek, Bohumil | . | 7/11/1908 | 1908 | . | 2355 |
| Campanulaceae | Campanula aparinoides Pursh | . | Winnebago. | Lake Mills, 1.5 m.S. | T99N_R23W_Sec15 | Bog, peat. Co pale bluish-white, turning bluish in vasculum. | Grant, Martin L. | 11701 | 8/21/1952 | 1952 | . | 2566 |
| Campanulaceae | Campanula rapunculoides L. | . | Dickinson. | Along street, Spirit Lake | . | Introduced | Shimek, Bohumil | . | 8/28/1911 | 1911 | Orig. i.d.: Campanula sp. Annot.: C. rapunculoides L., Martin L. Grant, 1953 | 3664 |
| Campanulaceae | Campanula rapunculoides L. | . | Dickinson. | Center Lake. Sec. 7, SE-NW. | T99N_R36W_Sec7 | Escape, near farmhouse. Co blue-purple | Grant, Martin L. | 11167 | 6/28/1949 | 1949 | . | 1235 |
| Campanulaceae | Campanula rapunculoides L. | . | Dickinson. | Iowa Lakeside Laboratory | . | Rock wall east of Lecture Hall. Fls. blue-violet | Bloethe, D., K. Cogan, & S. Pedersen | . | 7/12/1973 | 1973 | . | 5018 |
| Campanulaceae | Campanula rotundifolia L. | . | Clayton. | N. of Marquette | . | On ledges base of wooded bluff. | Shimek, Bohumil | . | 8/9/1922 | 1922 | . | 2356 |
| Campanulaceae | Campanula rotundifolia L. | . | Dickinson. | W. Okoboji | . | . | Holmes, C.M. | . | 8/18/1933 | 1933 | C. rapunculoides L., Martin L. Grant, 1948 | 1237 |
| Campanulaceae | Campanula rotundifolia L. | . | Hardin. | Iowa Falls, Washington Bridge | . | Limestone river cliffs | Grant, Martin L. | 11203 | 7/18/1949 | 1949 | . | 1236 |
| Campanulaceae | Campanula rotundifolia L. | . | Winneshiek. | Above Ice Cave Decorah. | . | Wooded bluff | Shimek, Bohumil | . | 7/20/1927 | 1927 | . | 2665 |
| Campanulaceae | Lobelia cardinalis L. | . | Muscatine. | Along Cedar River. | . | . | Shimek, Bohumil | . | 08/01/1895 | 1895 | . | 2666 |
| Campanulaceae | Lobelia inflata L. | . | Emmet. | Nasby Woods, Estherville 1 m. s. | . | Oak woods. Co pale blue | Grant, Martin L. | 11680 | 8/20/1952 | 1952 | . | 1502 |
| Campanulaceae | Lobelia inflata L. | . | Johnson. | East of Iowa City | . | . | Harris, H.L. | . | 10/10/1938 | 1938 | . | 2667 |
| Campanulaceae | Lobelia kalmii L. | . | Dickinson. | . | T100N_R38W_Sec32 | Fen | Shook, A. D. & E. O. Beal | 35 | 7/24/1950 | 1950 | Iowa Nat. Areas Inventory Jeanne N. Bates 1983-08-05 | 1239 |
| Campanulaceae | Lobelia kalmii L. | . | Dickinson. | SW side of Silver Lake | . | Hanging bog | Shimek, Bohumil | . | 8/28/1932 | 1932 | ! PHM, 1952. Iowa Nat. Areas Inventory Jeanne N. Bates 1983-08-05 | 2669 |
| Campanulaceae | Lobelia kalmii L. | . | Dickinson. | Silver Lake Fen. Sec. 32, SW1/4. | T100N_R28W_Sec32 | . | Hoffman, Larry | . | 8/3/1957 | 1957 | Iowa Nat. Areas Inventory Jeanne N. Bates 1983-08-05 | 2668 |
| Campanulaceae | Lobelia kalmii L. | . | Dickinson. | Silver Lake. Sec. 33, NW-SW. | T100N_R38W_Sec33 | Calcareous bog | Grant, Martin L. | 8944 | 8/11/1948 | 1948 | Iowa Nat. Areas Inventory Jeanne N. Bates 1983-08-05 | 1240 |
| Campanulaceae | Lobelia kalmii L. | . | Dickinson. | Silver Lake | . | Hanging bog | Anderson, W. A. | . | 8/15/1932 | 1932 | Iowa Nat. Areas Inventory Jeanne N. Bates 1983-08-05 | 1242 |
| Campanulaceae | Lobelia kalmii L. | . | Dickinson. | Silver Lake | . | Upland bog | Grant, Martin L. | 8299 | 8/24/1938 | 1938 | Iowa Nat. Areas Inventory Jeanne N. Bates 1983-08-05 | 1596 |
| Campanulaceae | Lobelia kalmii L. | . | Dickinson. | West of Lower Gar Lake. Sec. 32, SE1/4. | T99N_R36W_Sec32 | Hanging bog | Thorne, Robert F. | 18611 | 8/15/1957 | 1957 | Iowa Nat. Areas Inventory Jeanne N. Bates 1983-08-05 | 4453 |
| Campanulaceae | Lobelia kalmii L. | . | Palo Alto. | 5 mi. E. of Ruthven. Sec. 24, NE1/4. | T96N_R34W_Sec24 | Fen | Grant, Martin L. | 8932 | 8/10/1948 | 1948 | Iowa Nat. Areas Inventory Jeanne N. Bates 1983-08-05 | 1241 |
| Campanulaceae | Lobelia siphilitica L. | . | Dickinson. | . | T100N_R35W_Sec29 | . | Nelsen, J. | 315 | 8/1/1967 | 1967 | . | 5185 |
| Campanulaceae | Lobelia siphilitica L. | . | Dickinson. | . | T99N_R37W_Sec23 | Bog on Lakeside Lab's North 40 | Shook, A. D. & E. O. Beal | 89 | 8/11/1950 | 1950 | . | 1243 |
| Campanulaceae | Lobelia siphilitica L. | . | Dickinson. | Cayler Prairie. Lakeville twnshp. Sec. 17, W 1/2. | . | . | Thorne, Robert F. | 16221 | 8/1/1955 | 1955 | . | 4454 |
| Campanulaceae | Lobelia siphilitica L. | . | Dickinson. | Floete Prairie | . | Low wet prairie slough. | Zylstra, Connie | . | 8/9/1958 | 1958 | . | 2671 |
| Campanulaceae | Lobelia siphilitica L. | . | Dickinson. | N. of Miller's bay, W. Lake Okoboji | . | Bog. | Shimek, Bohumil | . | 8/19/1909 | 1909 | . | 1244 |
| Campanulaceae | Lobelia siphilitica L. | . | Dickinson. | Plants of outlet of Lower Gar Lake. | T98N_R36W_Sec5 | Margin. | Shannon, Jerry A. & R.F. Thorne | 62 | 8/11/1961 | 1961 | . | 5622 |
| Campanulaceae | Lobelia siphilitica L. | . | Dickinson. | SE of Pleasant Lake | . | . | Conard, H. S. | . | 8/14/1923 | 1923 | . | 1245 |
| Campanulaceae | Lobelia siphilitica L. | . | Dickinson. | W. side of Little Sioux river, 3 1/2 miles N. of W. from Milford. Sec. 4, NW 1/4-NW 1/4. | T98N_R37W_Sec4 | Hanging bog. | Shimek, Bohumil | . | 8/24/1919 | 1919 | . | 2670 |
| Campanulaceae | Lobelia siphilitica L. | . | Hancock. | Along Lime Creek, NE part of Hancock County | . | Border of swamp. | Shimek, Bohumil | . | 8/31/1927 | 1927 | . | 2358 |
| Campanulaceae | Lobelia siphilitica L. | . | Johnson. | 4 mi. N. of Iowa City | . | . | Shimek, Bohumil | . | 9/5/1932 | 1932 | Original i.d. reads: Lobelia syphilitica (Albins). I can find no reference to 'Albins'. | 2357 |
| Campanulaceae | Lobelia siphilitica L. | var. ludoviciana DC. | Dickinson. | Lake Okoboji | . | Bog. | Grant, Martin L. | 8240 | 8/23/1938 | 1938 | . | 1597 |
| Campanulaceae | Lobelia spicata Lam. | . | Cerro Gordo. | N. of Buffalo Slough, E. of Mason City | . | Prairie | Shimek, Bohumil | . | 5/25/1921 | 1921 | County not listed by collector, but location is distinct. | 2679 |
| Campanulaceae | Lobelia spicata Lam. | . | Clay. | Kirchner Prairie | . | Adjacent to wetland area. Plants somewhat sparse and scattered. | Insko, Mike & Todd Pietig | 9 | 7/12/2002 | 2002 | . | 5687 |
| Campanulaceae | Lobelia spicata Lam. | . | Dickinson. | Floete Prairie | . | Dry prairie hillside. | Zylstra, Connie | . | 7/25/1958 | 1958 | . | 2676 |
| Campanulaceae | Lobelia spicata Lam. | . | Dickinson. | Near RR. south of Arnold's Park | . | Prairie | Shimek, Bohumil | . | 7/6/1916 | 1916 | Orig. i.d.: var ? | 2673 |
| Campanulaceae | Lobelia spicata Lam. | . | Muscatine. | Along RR. Wilton to Moscow | . | Sandy prairie. | Shimek, Bohumil | . | 6/28/1917 | 1917 | . | 2360 |
| Campanulaceae | Lobelia spicata Lam. | . | Muscatine. | SE. of Salisbury bridge | . | Lower part of alluvial prairie. | Shimek, Bohumil | . | 6/11/1928 | 1928 | . | 2359 |
| Campanulaceae | Lobelia spicata Lam. | var. hirtella Gray | Dickinson. | N. end of E. Okoboji Lake | . | Low sandy beach | Shimek, Bohumil | . | 7/23/1912 | 1912 | . | 2672 |
| Campanulaceae | Lobelia spicata Lam. | var. hirtella Gray | Dickinson. | NW of Miller's Bay, W. Lake Okoboji | . | Bog | Shimek, Bohumil | . | 8/12/1910 | 1910 | . | 1246 |
| Campanulaceae | Lobelia spicata Lam. | var. hirtella Gray | Dickinson. | Orleans | . | Low, sandy place | Shimek, Bohumil | . | 7/23/1912 | 1912 | L. spicata Lam. var. hirtella Gray, Martin L. Grant, 1949 | 1247 |
| Campanulaceae | Lobelia spicata Lam. | var. hirtella Gray | Linn. | Central City, River Road | . | . | Shupp, M.L. | . | 6/22/1937 | 1937 | County not listed by collector, but location is distinct. | 2675 |
| Campanulaceae | Lobelia spicata Lam. | var. leptostachys (A. DC.) Mack & Bush | Dickinson. | Spooky Hollow Kettlehole. Sec. 33. | T99N_R37W_Sec33 | Wet prairie | Grant, Martin L. | 8899 | 8/9/1948 | 1948 | . | 1249 |
| Campanulaceae | Lobelia spicata Lam. | var. leptostachys (A. DC.) Mack & Bush | Dickinson. | Thorne Prairie. Sec. 28, NW-NW. | T100N_R37W_Sec28 | Prairie. Co pale blue | Grant, Martin L. | 11150 | 6/22/1949 | 1949 | . | 1248 |
| Campanulaceae | Lobelia spicata Lam. | var. leptostachys (A.DC.) Mack. & Bush. | Dickinson. | Lakeville twnshp. Sec. 33, E 1/2. | . | . | Conard, H. S. | . | 7/10/1923 | 1923 | L. spicata Lam. var. leptostachys (A.DC.) Mack. & Bush., Martin L. Grant, 1949 | 1250 |
| Campanulaceae | Triodanis perfoliata (L.) Nieuwl. | . | Dickinson. | At the cove S. of Elm Crest, W. Okoboji Lake. | . | Woods | Shimek, Bohumil | . | 7/10/1915 | 1915 | Orig. i.d.: Specularia perfoliata (L.) A. DC. Annot.: = Triodanis [anon.] [Triodanis perfoliata (L.) Nieuwl. from Plants Database & The Plant List (www.theplantlist.org)] | 2677 |
| Campanulaceae | Triodanis perfoliata (L.) Nieuwl. | . | Lyon. | Gitchie Manitou Park | . | Prairie | Grant, Martin L. | 12216 | 6/26/1954 | 1954 | Orig. i.d.: Specularia perfoliata (L.) A. DC. Annot.: = Triodanis [anon.] [Triodanis perfoliata (L.) Nieuwl. from Plants Database & The Plant List (www.theplantlist.org)] | 2006 |
| Campanulaceae | Triodanis perfoliata (L.) Nieuwl. | . | Muscatine. | RR. roadbed, 5th mile N. of Summit. | . | Weeds | Shimek, Bohumil | . | 6/21/1924 | 1924 | Orig. i.d.: Specularia perfoliata (L.) A. DC. Annot.: = Triodanis [anon.] [Triodanis perfoliata (L.) Nieuwl. from Plants Database & The Plant List (www.theplantlist.org)] | 2361 |
| Cannabaceae | Cannabis sativa L. | . | Dickinson. | East Lake Okoboji. Sec. 14, NW-NW. | T99N_R36W_Sec14 | Clearing in oak-ash forest | Grant, Martin L. | 13990 | 7/28/1959 | 1959 | . | 3955 |
| Cannabaceae | Cannabis sativa L. | . | Dickinson. | N. side Center Lake | . | Bur oak clearing. Male and female plants, 6' tall | Grant, Martin L. | 14994 | 8/1/1967 | 1967 | . | 4773 |
| Cannabaceae | Cannabis sativa L. | . | Dickinson. | N. side Center Lake | . | Bur oak clearing. Male plant 6' tall | Grant, Martin L. | 14994 | 8/1/1967 | 1967 | . | 4772 |
| Cannabaceae | Cannabis sativa L. | . | Dickinson. | Near Little Sioux River | . | Moist ground | Anderson, W. A. | 2011 | 7/1/1942 | 1942 | . | 409 |
| Cannabaceae | Cannabis sativa L. | . | Lyon. | Gitchie Manitou State Park | . | High semi-wooded area. Male and Female plant. | Chilton, Mike | . | 8/14/1958 | 1958 | . | 2678 |
| Cannabaceae | Celtis occidentalis L. | . | Dickinson. | East side of Spirit Lake | . | . | Conard, H. S. | . | 8/2/1923 | 1923 | . | 404 |
| Cannabaceae | Celtis occidentalis L. | . | Dickinson. | Iowa Lakeside Laboratory | . | Open area, weedy grasses and forbs. Bark patchy, warty. DBH 18 in. | Bloethe, D., K. Cogan, & S. Pedersen | . | 7/11/1973 | 1973 | . | 5158 |
| Cannabaceae | Celtis occidentalis L. | . | Dickinson. | Plants of three representative areas of the east shore of West Okoboji Lake. | T99N_R37W_Sec12 | Dbh 5 dec. Height 90 dec. Open woods. Oak woods. NW1/4 sec. 12. | Naffziger, Joyce | 9 | 8/4/1961 | 1961 | Ulmaceae in Eilers & Roosa [1994] and FNA. | 5585 |
| Cannabaceae | Humulus lupulus L. | . | Johnson. | . | . | . | Shimek, Bohumil | . | 08/01/1895 | 1895 | . | 2679 |
| Cannabaceae | Humulus lupulus L. | . | Lyon. | Gitchie Manitou | . | Brush prairie | Grant, Martin L. | 11265 | 8/8/1949 | 1949 | . | 526 |
| Cannabaceae | Humulus lupulus L. | . | Lyon. | Rock Rapids | . | . | Shimek, Bohumil | . | 08/05/1896 | 1896 | . | 2680 |
| Caprifoliaceae | Diervilla lonicera Mill. | . | Allamakee. | Stone House, 7 mi. NE. of Postville. | . | Wooded bluff | Shimek, Bohumil | . | 7/19/1927 | 1927 | . | 2687 |
| Caprifoliaceae | Lonicera dioica L | . | Dickinson. | Gilley's Beach | . | Woods | Shimek, Bohumil | . | 5/26/1912 | 1912 | Orig. i.d.: Lonicera sempervirens L. Annot.: L. dioica L., Robert F. Thorne, 1953; No ! [anon.] | 1219 |
| Caprifoliaceae | Lonicera dioica L | . | Dickinson. | SE of Miller's Bay Hotel, W. Okoboji Lake. | . | Bur oak woods | Shimek, Bohumil | . | 6/8/1917 | 1917 | Orig. i.d.: Lonicera glaucescens Rydb. Annot.: L. dioica L., Robert F. Thorne, 1958 | 2688 |
| Caprifoliaceae | Lonicera dioica L | . | Dickinson. | South of Miller's Bay | . | Woods | Shimek, Bohumil | . | 7/16/1912 | 1912 | . | 1218 |
| Caprifoliaceae | Lonicera morrowi Gray | . | Dickinson. | East shore of West Okoboji Lake | T99N_R37W_Sec12 | Open woods, Oak woods. | Naffziger, Joyce | 31 | 8/4/1961 | 1961 | [Annotated by R.F. Thorne, 1961] | 5314 |
| Caprifoliaceae | Lonicera morrowi Gray | . | Dickinson. | Iowa Lakeside Laboratory | . | Open area, weedy grasses and forbs. Shrub, fls white, berry red, young twigs pubescent. | Bloethe, D., K. Cogan, & S. Pedersen | . | 7/15/1973 | 1973 | . | 5040 |
| Caprifoliaceae | Lonicera reticulata Raf. | . | Clayton. | Bixby Park | . | Wooded rocky slopes | Shimek, Bohumil | . | 9/12/1923 | 1923 | Orig. i.d.: Lonicera sullivantii Gray. Annot.: = L. prolifera [anon.]; L. reticulata Plants Database | 2351 |
| Caprifoliaceae | Lonicera reticulata Raf. | . | Clayton. | McGregor Heights | . | Deep woods | Shimek, Bohumil | . | 7/29/1919 | 1919 | Orig. i.d.: Lonicera sullivantii Gray. Annot.: = L. prolifera [anon.]; L. reticulata Plants Database | 2689 |
| Caprifoliaceae | Lonicera tatarica L. | . | Dickinson. | Campus of Iowa Lakeside Laboratory. Lakeville twnshp. Sec. 23, SW 1/4. | . | Tall shrub in woods. | Thorne, Robert F. | 16196 | 7/15/1955 | 1955 | . | 4447 |
| Caprifoliaceae | Lonicera tatarica L. | . | Dickinson. | Iowa Lakeside Laboratory | . | Woody ravine, shrub, new twigs glabrous. | Bloethe, D., K. Cogan, & S. Pedersen | . | 7/13/1973 | 1973 | . | 5167 |
| Caprifoliaceae | Lonicera xylosteum L. | . | Dickinson. | RR tracks N. of Milford. Sec. 6, W. | T99N_R36W_Sec6 | Fence row. Shrub 6' | Grant, Martin L. | 12139 | 6/21/1954 | 1954 | . | 2005 |
| Caprifoliaceae | Symphoricarpos occidentalis Hook. | . | Cerro Gordo. | Mason City | . | . | Shimek, Bohumil | . | 07/07/1896 | 1896 | . | 2691 |
| Caprifoliaceae | Symphoricarpos occidentalis Hook. | . | Dickinson. | . | . | . | Downing, W.L. | 12 | 7/22/1949 | 1949 | . | 1222 |
| Caprifoliaceae | Symphoricarpos occidentalis Hook. | . | Dickinson. | Campus of Iowa Lakeside Laboratory. Lakeville twnshp. Sec. 23. | . | . | Thorne, Robert F. | 14167 | 6/22/1954 | 1954 | . | 4448 |
| Caprifoliaceae | Symphoricarpos occidentalis Hook. | . | Dickinson. | Cayler Prairie. Sec. 17, NW1/2. | T99N_R37W_Sec17 | . | Thorne, Robert F. | 18617 | 6/29/1957 | 1957 | . | 4449 |
| Caprifoliaceae | Symphoricarpos occidentalis Hook. | . | Dickinson. | East shore of East Okoboji Lake | T99N_R36W_Sec30 | Dense woods, Basswood woods | Naffziger, Joyce | 81 | 8/11/1961 | 1961 | . | 5316 |
| Caprifoliaceae | Symphoricarpos occidentalis Hook. | . | Dickinson. | East shore of West Okoboji Lake | T99N_R36W_Sec30 | Dense woods, Basswood woods | Naffziger, Joyce | 81 | 8/11/1961 | 1961 | . | 5316 |
| Caprifoliaceae | Symphoricarpos occidentalis Hook. | . | Dickinson. | East shore of West Okoboji Lake | T99N_R37W_Sec12 | Edge of open woods, Oak woods | Naffziger, Joyce | 1 | 8/4/1961 | 1961 | . | 5315 |
| Caprifoliaceae | Symphoricarpos occidentalis Hook. | . | Dickinson. | Floete Prairie | . | Dry prairie hillside. | Zylstra, Connie | . | 8/11/1958 | 1958 | . | 2695 |
| Caprifoliaceae | Symphoricarpos occidentalis Hook. | . | Dickinson. | Iowa Lakeside Laboratory | . | Acer negundo - Quercus macrocarpa woodland. Fls white to pink, common bushy shrub, understory | Bloethe, D., K. Cogan, & S. Pedersen | . | 7/11/1973 | 1973 | . | 5028 |
| Caprifoliaceae | Symphoricarpos occidentalis Hook. | . | Dickinson. | Okoboji | . | Prairie border | Shimek, Bohumil | . | 9/1/1901 | 1901 | . | 2693 |
| Caprifoliaceae | Symphoricarpos occidentalis Hook. | . | Dickinson. | S. of Miller's Bay, W. Lake Okoboji. | . | Open woods | Shimek, Bohumil | . | 8/19/1909 | 1909 | . | 1223 |
| Caprifoliaceae | Symphoricarpos occidentalis Hook. | . | Dickinson. | Terrace Park, West Okoboji Lake | . | Sandy prairie (old beach) | Shimek, Bohumil | . | 7/10/1915 | 1915 | . | 1798 |
| Caprifoliaceae | Symphoricarpos occidentalis Hook. | . | Dickinson. | Woods west of Elmcrest | . | . | Conard, H. S. | . | 6/25/1923 | 1923 | . | 1224 |
| Caprifoliaceae | Symphoricarpos occidentalis Hook. | . | Emmet. | NW of Estherville | . | Prairie | Shimek, Bohumil | . | 8/10/1909 | 1909 | . | 2694 |
| Caprifoliaceae | Symphoricarpos orbiculatus Moench | . | Johnson. | Iowa City. Cult. from Henry Co. stock | . | . | Shimek, Bohumil | . | 10/1/1930 | 1930 | County not listed by collector, but location is distinct. | 2697 |
| Caprifoliaceae | Symphoricarpos orbiculatus Moench | . | Johnson. | McBride State Park, Big Grove Twp. | . | Low, colonial shrub along old road through dry woods. | Thorne, Robert F. | 14083 | 5/25/1954 | 1954 | . | 4489 |
| Caprifoliaceae | Symphoricarpos orbiculatus Moench | . | Monona. | On the side of the 'canyon' in Preparation Canyon State Park. | . | Low bush about 3 feet high | Jordan, W.E. | . | 6/29/1957 | 1957 | . | 2696 |
| Caprifoliaceae | Symphoricarpos orbiculatus Moench | . | Van Buren. | Keosauqua State Park | . | More open bank | Shimek, Bohumil | . | 7/3/1930 | 1930 | As determined, Robert A. Davidson, 05-01-1956 | 2698 |
| Caprifoliaceae | Triosteum aurantiacum Bickn. | . | Winneshiek. | Decorah | . | . | Savage, T.E. | . | 05/29/1899 | 1899 | . | 2445 |
| Caprifoliaceae | Triosteum perfoliatum L. | . | Dickinson. | Amundtson Woods, 3 mi. SW. of Milford. Sec. 26, SW-NW . | T98N_R37W_Sec26 | Bur oak forest. Stem 5 dm. tall. | Grant, Martin L. | 14399 | 8/3/1960 | 1960 | Orig. i.d.: = Triosteum perfoliatum L., Typical | 4314 |
| Caryophyllaceae | Cerastium arvense L. | var. oblongifolium H. & B. | Cerro Gordo. | Mason City | . | . | Shimek, Bohumil | . | 07/07/1896 | 1896 | . | 2608 |
| Caryophyllaceae | Cerastium fontanum Baumg. | ssp. vulgare (Hartm.) Greuter & Burdet | Dickinson. | Gull State Park. Lakeville twnshp. | . | Woods | Baird, Jack | . | 6/20/1953 | 1953 | Orig. i.d.: Cerastium vulgatum L. Annot.: Cerastium fontanum FNA (vol. 5, p. 74 & 86) & Plants Database. | 2707 |
| Caryophyllaceae | Cerastium fontanum Baumg. | ssp. vulgare (Hartm.) Greuter & Burdet | Johnson. | Iowa City | . | . | Shimek, Bohumil | . | 11/25/1915 | 1915 | Orig. i.d.: Cerastium vulgatum L. Annot.: Cerastium fontanum FNA (vol. 5, p. 74 & 86) & Plants Database. [Date is Nov.] | 2154 |
| Caryophyllaceae | Cerastium glomeratum Thuill. | . | Lyon. | NW Corner of Lyon Co., near White's farm | . | . | Shimek, Bohumil | . | 06/18/1897 | 1897 | Orig. i.d.: Cerastium Nuttans Raf. [sic] Annot.: C. viscosum L., Robert F. Thorne, 1954; = C. glomeratum Thuill. [anon.]; see FNA [vol. 5, p. 74 & p. 87] & Plants Database. | 1706 |
| Caryophyllaceae | Cerastium nutans Raf. | . | Dubuque. | NW of Luxemburg, Pine Creek hollow | . | Wooded bluffs | Shimek, Bohumil | . | 5/11/1901 | 1901 | . | 2705 |
| Caryophyllaceae | Cerastium nutans Raf. | . | Johnson. | Coufals [Cou Falls, IA] | . | Woods | Shimek, Bohumil | . | 5/19/1927 | 1927 | . | 2153 |
| Caryophyllaceae | Moehringia lateriflora (L.) Fenzl. | . | Winneshiek. | Bluff along Upper Iowa River at Kendallville. Fremont Twp. | . | . | Thorne, Robert F. & R.A. Davidson | 11100a | 8/22/1952 | 1952 | Orig. i.d.: Arenaria lateriflora L. Annot.: = Moehringia lateriflora (L.) Fenzl. [anon.]; FNA [vol. 5. p.71] & Plants Database. | 2704 |
| Caryophyllaceae | Paronychia canadensis (L.) Wood | . | Guthrie. | Springbrook Park. Sec. 33, SE-SW. | T81N_R31W_Sec33 | Oak forest | Grant, Martin L. | 12366 | 7/24/1954 | 1954 | . | 2498 |
| Caryophyllaceae | Paronychia canadensis (L.) Wood | . | Guthrie. | Springbrook State Park | . | Upland woods near lake. | Thorne, Robert F. | 14442 | 7/24/1954 | 1954 | . | 4609 |
| Caryophyllaceae | Paronychia canadensis (L.) Wood | . | Wapello. | Near Cliffland | . | Open places along bluffs | Shimek, Bohumil | . | 10/18/1913 | 1913 | Orig. i.d.: Anychia canadensis (L.) BSP. Annot.: P. canadensis (L.) Wood, Robert A. Davidson, 06-17-1955; Paronychia [anon.]; Paronychia canadensis FNA [vol. 5, p.34] & Plants Database. | 2712 |
| Caryophyllaceae | Paronychia fastigiata (Raf.) Fern. | . | Johnson. | Sandy soil, in places moist with seepage, along small branch. W 1/2 of sec. 35. Cedar twnshp. | T81N_R4W_Sec35 | . | Thorne, Robert F. | . | 10/1/1955 | 1955 | . | 4460 |
| Caryophyllaceae | Paronychia fastigiata (Raf.) Fern. | . | Wapello. | Near Cliffland. Sec. 11, NW1/4. | T71N_R13W_Sec11 | Dry, sandy pockets on sandstone bluffs. | Davidson, Robert A. | 284 1/2 | 7/9/1953 | 1953 | . | 2713 |
| Caryophyllaceae | Saponaria officinalis L. | . | . | S. of Iowa City | . | Sandy alluvium, west of river | Shimek, Bohumil | . | 10/7/1911 | 1911 | . | 2714 |
| Caryophyllaceae | Saponaria officinalis L. | . | Dickinson. | Garlock Slough. Sec. 34, SE-SE. | T99N_R37W_Sec34 | Roadside. Co pink, single | Grant, Martin L. | 11591 | 7/30/1952 | 1952 | . | 1453 |
| Caryophyllaceae | Silene antirrhina L. | . | Cerro Gordo. | NE of side of Buffalo Slough, Mason City. | T97N_R20W_ Sec34&35 | Prairie above ledges. | Shimek, Bohumil | . | 6/17/1917 | 1917 | County not listed by collector, but location is distinct. | 3135 |
| Caryophyllaceae | Silene antirrhina L. | . | Dickinson. | Beach S. of Elmcrest | . | . | Conard, H. S. | . | 7/5/1923 | 1923 | . | 607 |
| Caryophyllaceae | Silene antirrhina L. | . | Dickinson. | Cayler Prairie. Lakeville twnshp. Sec. 17, NW 1/4. | . | Gravelly knobs, rare. | Thorne, Robert F. | 16123 | 6/30/1955 | 1955 | . | 4397 |
| Caryophyllaceae | Silene antirrhina L. | . | Dickinson. | East of north end of W. Okoboji Lake. | . | Prairie knob | Shimek, Bohumil | . | 7/20/1918 | 1918 | . | 1663 |
| Caryophyllaceae | Silene antirrhina L. | . | Dickinson. | Montgomery. Sec. 28, NW-NW. | T100N_R37W_Sec28 | High prairie | Grant, Martin L. | 13900 | 6/24/1959 | 1959 | . | 3855 |
| Caryophyllaceae | Silene antirrhina L. | . | Dickinson. | N. of Miller's Bay, W. Okoboji Lake | . | Prairie-steppe gravelly hill. | Shimek, Bohumil | . | 6/20/1912 | 1912 | . | 1664 |
| Caryophyllaceae | Silene antirrhina L. | . | Dickinson. | NW of Lookout | . | Prairie | Shimek, Bohumil | . | 6/22/1912 | 1912 | . | 606 |
| Caryophyllaceae | Silene antirrhina L. | . | Lyon. | Gitchie Manitou Park | . | Quartzite sand | Grant, Martin L. | 12217 | 6/26/1954 | 1954 | . | 1921 |
| Caryophyllaceae | Silene antirrhina L. | . | Lyon. | Gitchie Manitou State Park. Sioux twnshp. | . | Outcrops of Sioux quartzite and adjacent dry prairies and quarry. | Thorne, Robert F. | 14200 | 6/26/1954 | 1954 | . | 4531 |
| Caryophyllaceae | Silene dichotoma Ehrh. | . | Dickinson. | By Marble Lake. Sec. 17, SW 1/4. | T100N_R36W_Sec17 | Dry woods, weedy | Severe, Doris | 34 | 7/27/1957 | 1957 | Orig. i.d.: Silene noctiflora L. Annot.: S. dichotoma Ehrh., with some features of S. noctiflora, Martin L. Grant, 1960. | 3136 |
| Caryophyllaceae | Silene dichotoma Ehrh. | . | Dickinson. | Floete's Beach | . | . | Conard, H. S. | . | 7/4/1923 | 1923 | Orig. i.d.: Silene noctiflora L. Annot.: Silene dichotoma Ehrh., tho with some features of S. noctiflora, Martin L. Grant, 1960; ? Lychnis ? [anon.]. | 608 |
| Caryophyllaceae | Silene latifolia Poiret | . | Dickinson. | . | T99N_R36W_Sec31 | . | Severe, Doris | 56 | 8/4/1957 | 1957 | Orig. i.d.: Lychnis alba Mill. Annot.: = Silene alba (P.Mill.) Krause [anon.]; Silene latifolia FNA (vol. 5, p. 191) & Plants Database. | 2711 |
| Caryophyllaceae | Silene latifolia Poiret | . | Dickinson. | Golf grounds | . | . | Hitchings, M. | . | 8/24/1923 | 1923 | Orig. i.d.: Silene noctiflora L. Annot.: = Silene alba (P.Mill.) Krause [anon.]; Lychnis alba Mill., Martin L. Grant, 1960; Lychnis ? [anon.]; S. latifolia FNA (vol. 5, p. 191) & Plants Database. | 609 |
| Caryophyllaceae | Silene latifolia Poiret | . | Dickinson. | Iowa Lakeside Laboratory | . | Wood edge, common | Bloethe, D., K. Cogan, & S. Pedersen | . | 7/12/1973 | 1973 | Orig. i.d.: Lychnis alba Mill. Annot.: = Silene alba (P.Mill.) Krause [anon.]; Silene latifolia FNA (vol. 5, p. 191) & Plants Database. | 5062 |
| Caryophyllaceae | Silene latifolia Poiret | . | Dickinson. | Plants of three representative areas of the east shore of West Okoboji Lake. | T99N_R37W_Sec12 | Edge of open woods. Oak woods. NW1/4 sec. 12. | Naffziger, Joyce | 104 | 8/4/1961 | 1961 | Orig. i.d.: Lychnis alba Mill. by RFT 1961. Annotation: Silene pratensis (Raf.) Godr. & Grn. DA1999; Silene latifolia FNA (vol. 5, p. 191) & Plants Database. | 5476 |
| Caryophyllaceae | Silene latifolia Poiret | . | Dickinson. | S. of Lakeside Laboratory | . | Wooded banks, (introduced) | Shimek, Bohumil | . | 6/22/1912 | 1912 | Orig. i.d.: Lychnis alba Mill. Annot.: = Silene alba (P.Mill.) Krause [anon.]; Silene latifolia FNA (vol. 5, p. 191) & Plants Database. | 480 |
| Caryophyllaceae | Silene latifolia Poiret | . | Dickinson. | Sec. 2, SW1/4. | T98N_R37W_Sec2 | Hayfield | Byerly, Dale M. | . | 8/2/1957 | 1957 | Orig. i.d.: Lychnis alba Mill. Annot.: = Silene alba (P.Mill.) Krause [anon.]; Silene latifolia FNA (vol. 5, p. 191) & Plants Database. | 2709 |
| Caryophyllaceae | Silene latifolia Poiret | . | Dickinson. | Spirit Lake, along shore east of Stony Point. | . | Lake shore. | Chilton, Mike | . | 7/28/1958 | 1958 | Orig. i.d.: Lychnis alba Mill. Annot.: = Silene alba (P.Mill.) Krause [anon.]; Silene latifolia FNA (vol. 5, p. 191) & Plants Database. | 2710 |
| Caryophyllaceae | Silene nivea (Nutt.) Otth. | . | Linn. | Cedar Rapids | . | Low places, alluvial flat | Shimek, Bohumil | . | 7/7/1903 | 1903 | . | 2155 |
| Caryophyllaceae | Silene stellata (L.) Ait. | . | . | Along RR. W. of river, S. of Iowa City | . | Sandy prairie | Shimek, Bohumil | . | 8/17/1915 | 1915 | . | 2156 |
| Caryophyllaceae | Silene stellata (L.) Ait. | . | Dickinson. | . | T98N_R37W_Sec10 | Fence row | Byerly, Dale M. | . | 7/24/1957 | 1957 | . | 3137 |
| Caryophyllaceae | Silene stellata (L.) Ait. | . | Dickinson. | 2 miles west of Milford, along Little Sioux River. | . | Upland woods | Severe, Doris | 11 | 7/24/1957 | 1957 | . | 3138 |
| Caryophyllaceae | Silene stellata (L.) Ait. | . | Dickinson. | Floete Prairie. Lakeville twnshp. Sec. 26. | . | . | Thorne, Robert F. | 13149 | 8/3/1953 | 1953 | . | 3140 |
| Caryophyllaceae | Silene stellata (L.) Ait. | . | Dickinson. | Floete Prairie | . | Dry prairie hillside. | Zylstra, Connie | . | 7/24/1958 | 1958 | . | 3141 |
| Caryophyllaceae | Silene stellata (L.) Ait. | . | Dickinson. | Floete Prairie | . | Low wet prairie | Zylstra, Connie | . | 8/15/1958 | 1958 | . | 3142 |
| Caryophyllaceae | Silene stellata (L.) Ait. | . | Dickinson. | Floete Prairie | . | Virgin prairie | Zylstra, Connie | . | 7/13/1958 | 1958 | Orig. i.d.: Dianthus chinensis L. Annot.: Silene stellata, (RFT) & MLG ! | 3143 |
| Caryophyllaceae | Silene stellata (L.) Ait. | . | Dickinson. | Iowa Lakeside Laboratory | . | Wooded water front. Fls white | Bloethe, D., K. Cogan, & S. Pedersen | . | 7/19/1973 | 1973 | . | 5061 |
| Caryophyllaceae | Silene stellata (L.) Ait. | . | Dickinson. | Milford Woods | . | . | Downing, W.L. | 5 | 7/22/1949 | 1949 | . | 610 |
| Caryophyllaceae | Silene stellata (L.) Ait. | . | Dickinson. | Milford Woods | . | . | Takehara, Kenneth N. | 7 | 7/22/1949 | 1949 | . | 611 |
| Caryophyllaceae | Silene stellata (L.) Ait. | . | Dickinson. | Miller's Bay, W. Lake Okoboji | . | Open woods | Shimek, Bohumil | . | 8/20/1909 | 1909 | . | 613 |
| Caryophyllaceae | Silene stellata (L.) Ait. | . | Dickinson. | Plants of three representative areas of the east shore of West Okoboji Lake. | T99N_R37W_Sec12 | Edge of open woods. Oak woods. NW1/4 sec. 12. | Naffziger, Joyce | 98 | 8/4/1961 | 1961 | det. by RFT 1961 | 5477 |
| Caryophyllaceae | Silene stellata (L.) Ait. | . | Dickinson. | Plants of three representative areas of the east shore of West Okoboji Lake. | T99N_R37W_Sec12 | Open woods. Oak woods. NW1/4 sec. 12. | Naffziger, Joyce | 106 | 8/4/1961 | 1961 | det. by RFT 1961 | 5475 |
| Caryophyllaceae | Silene stellata (L.) Ait. | . | Dickinson. | Spirit Lake | . | . | Shimek, Bohumil | . | 07/30/1896 | 1896 | . | 3139 |
| Caryophyllaceae | Silene stellata (L.) Ait. | . | Dickinson. | Spirit Lake | . | Forest, oak | Grant, Martin L. | 8332 | 8/25/1938 | 1938 | . | 1719 |
| Caryophyllaceae | Silene stellata (L.) Ait. | . | Dickinson. | Swan Lake. Sec. 23, SW-SW. | T100N_R35W_Sec23 | Oak woods. Co white | Grant, Martin L. | 11187 | 7/14/1949 | 1949 | . | 612 |
| Caryophyllaceae | Silene stellata (L.) Ait. | . | Dickinson. | W. Okoboji Lake. | . | Border of opening north of The Inn. | Shimek, Bohumil | . | 7/9/1918 | 1918 | . | 1665 |
| Caryophyllaceae | Silene stellata (L.) Ait. | . | Dickinson. | West Okoboji | . | . | Lohman, M.L. | . | 8/13/1925 | 1925 | . | 614 |
| Caryophyllaceae | Silene vulgaris (Moench) Garcke | . | Dickinson. | Along railroad. Center Grove twnshp. Sec. 31, SE 1/4. | . | . | Thorne, Robert F. | 16310 | 8/8/1955 | 1955 | Orig. i.d.: Silene cucubalus Wibel Annot.: = S. vulgaris (Moench.) Garcke [anon.]; FNA (vol. 5, p.213) & Plants Database. | 4398 |
| Caryophyllaceae | Stellaria longifolia Muhl. | . | Dickinson. | SE of Miller's Bay, W. Lake Okoboji. | . | Open bur oak woods. | Cavanagh, Lucy M . | . | 5/27/1910 | 1910 | . | 615 |
| Caryophyllaceae | Stellaria longifolia Muhl. | . | Dickinson. | Spooky Hollow Fen. Sec. 4, NW-NW. | T98N_R37W_Sec4 | Bog. Co white | Grant, Martin L. | 143334 | 6/29/1960 | 1960 | . | 4017 |
| Caryophyllaceae | Stellaria longifolia Muhl. | . | Hancock. | Pilot Knob State Park. Ellington twnshp. | . | Edge of marsh. | Thorne, Robert F. | 14393 | 7/8/1954 | 1954 | . | 4570 |
| Caryophyllaceae | Stellaria longifolia Muhl. | . | Muscatine. | Pine Mills | . | Grassy places near the rocky ledges. Not frequent | Reppert, F. | 411 | 05/01/1891 | 1891 | . | 3144 |
| Caryophyllaceae | Stellaria media (L.) Villars | . | Dickinson. | Iowa Lakeside Laboratory, campus . Sec. 23, W1/2. | T99N_R37W_Sec23 | . | Thorne, Robert F. | 14464 | 7/29/1954 | 1954 | Orig. i.d.: Stellaria media (L.) Cyrillo | 4399 |
| Caryophyllaceae | Stellaria media (L.) Villars | . | Dickinson. | Iowa Lakeside Laboratory | . | Near Lab. buildings, common in moist shady areas. | Bloethe, D., K. Cogan, & S. Pedersen | . | 7/12/1973 | 1973 | Orig. i.d.: Stellaria media (L.) Cyrillo | 5059 |
| Caryophyllaceae | Stellaria media (L.) Villars | . | Dickinson. | Stony Point, Spirit Lake . Sec.14, SW-SW. | T100N_R36W_Sec14 | Oak woods. Co white | Grant, Martin L. | 12346 | 7/15/1954 | 1954 | Orig. i.d.: Stellaria media (L.) Cyrillo | 1923 |
| Celastraceae | Celastrus scandens L. | . | Clayton. | McGregor Heights | . | Upland woods | Shimek, Bohumil | . | 8/9/1922 | 1922 | . | 2247 |
| Celastraceae | Celastrus scandens L. | . | Dickinson. | Elmcrest. Sec. 25, NW-NW. | T99N_R37W_Sec25 | Oak woods | Grant, Martin L. | 11646 | 8/18/1952 | 1952 | . | 1477 |
| Celastraceae | Celastrus scandens L. | . | Dickinson. | Iowa Lakeside Laboratory | . | N40, dense woods | Bloethe, D., K. Cogan, & S. Pedersen | . | 7/24/1973 | 1973 | . | 5162 |
| Celastraceae | Celastrus scandens L. | . | Fremont. | Waubonsie State Park | . | Dry upland woods | Fay, M.J. | 2408 | 6/5/1952 | 1952 | . | 3145 |
| Celastraceae | Euonymus atropurpureus Jacq. | . | Cedar. | Along west side of Cedar River. Cedar twnshp. Sec. 11, N 1/2. | . | Sandy, pastured bottomland. | Thorne, Robert F. | 17394 | 6/10/1955 | 1955 | . | 4479 |
| Celastraceae | Euonymus atropurpureus Jacq. | . | Dickinson. | Milford Woods. Sec. 10, NW-NW. | T98N_R37W_Sec10 | Bur oak woods. Shrub, 10' tall | Grant, Martin L. | 14999 | 8/4/1967 | 1967 | . | 4778 |
| Celastraceae | Euonymus atropurpureus Jacq. | . | Dickinson. | Spirit Lake | . | Beach. 10' | Grant, Martin L. | 8326 | 8/25/1938 | 1938 | . | 1725 |
| Ceratophyllaceae | Ceratophyllum demersum L. | . | Dickinson. | Arend's Kettlehole | . | Pond | Grant, Martin L. | 12509 | 8/17/1954 | 1954 | Courtesy J. Dodd | 3197 |
| Ceratophyllaceae | Ceratophyllum demersum L. | . | Dickinson. | East Lake Okoboji | . | . | Shimek, Bohumil | . | 08/01/1896 | 1896 | ! PHM, 1952 | 3149 |
| Ceratophyllaceae | Ceratophyllum demersum L. | . | Dickinson. | Garlock Slough, 1 1/2 mile NW of Milford. | . | . | Thorne, Robert F. | 12838 | 6/29/1953 | 1953 | . | 3150 |
| Ceratophyllaceae | Ceratophyllum demersum L. | . | Dickinson. | In front of Lakeside Lab. | . | . | Conard, H. S. | . | 7/2/1923 | 1923 | . | 623 |
| Ceratophyllaceae | Ceratophyllum demersum L. | . | Dickinson. | Lake Okoboji | . | Lake, awash [sic] | Grant, Martin L. | 8269 | 8/23/1938 | 1938 | . | 1588 |
| Ceratophyllaceae | Ceratophyllum demersum L. | . | Dickinson. | Little Miller's Bay, West Okoboji Lake, off dock of Lakeside Laboratory. | . | . | Hoffman, Larry | . | 8/13/1957 | 1957 | . | 3148 |
| Ceratophyllaceae | Ceratophyllum demersum L. | . | Dickinson. | Little Miller's Bay | . | Shallow to at least 15' water. | Shook, A.D. & E.O. Beal | 38 | 7/18/1950 | 1950 | . | 621 |
| Ceratophyllaceae | Ceratophyllum demersum L. | . | Dickinson. | Miller's Bay, Lake Okoboji | . | Quiet waters | Brown, Joseph H. | . | 7/26/1955 | 1955 | . | 3146 |
| Ceratophyllaceae | Ceratophyllum demersum L. | . | Dickinson. | Miller's Bay | . | Lake | Shimek, Bohumil | . | 8/2/1910 | 1910 | . | 622 |
| Ceratophyllaceae | Ceratophyllum demersum L. | . | Dickinson. | Miller's bay, Lake Okoboji | . | Lake, 8' water | Grant, Martin L. | 8781 | 7/7/1948 | 1948 | . | 619 |
| Ceratophyllaceae | Ceratophyllum demersum L. | . | Dickinson. | Okoboji, Little Miller's Bay | . | 6' water | Grant, Martin L. | 11182 | 7/8/1949 | 1949 | . | 620 |
| Ceratophyllaceae | Ceratophyllum demersum L. | . | Dickinson. | Plants of Crossroads Pond. | T99N_R37W_Sec34 | submerged | Luschen, Mary Alyce | 2 | 7/28/1961 | 1961 | . | 5439 |
| Ceratophyllaceae | Ceratophyllum demersum L. | . | Dickinson. | Plants of Marble Lake. Spirit Lake twp. | T100N_R36W_Sec17 | Shallow water. | Roosa, Dean M. | 9 | 7/29/1961 | 1961 | . | 5538 |
| Ceratophyllaceae | Ceratophyllum demersum L. | . | Dickinson. | Plants of outlet of Lower Gar Lake. | T98N_R36W_Sec5 | Shallow water over sandy bottom | Shannon, Jerry A. & R.F. Thorne | 72 | 8/11/1961 | 1961 | . | 5623 |
| Ceratophyllaceae | Ceratophyllum demersum L. | . | Dickinson. | Pond 2 mi. NW of Milford | . | 1' water. With fruit | Grant, Martin L. | 14412 | 8/11/1960 | 1960 | . | 4324 |
| Ceratophyllaceae | Ceratophyllum demersum L. | . | Dickinson. | S. Green Slough. Sec. 35. | T99N_R37W_Sec35 | In 2' water. Fruit | Grant, Martin L. | 11524 | 6/29/1952 | 1952 | . | 1454 |
| Ceratophyllaceae | Ceratophyllum demersum L. | . | Dickinson. | Shedd's Pond. SW1/4 Sec35 | T99N_R36W_Sec35 | . | Boetel, Lynne | 19927 | 6/11/1992 | 1992 | . | 5537 |
| Ceratophyllaceae | Ceratophyllum demersum L. | . | Dickinson. | Spirit Lake, Dickinson co., IA. | . | . | Crumm & Clark | . | 7/22/1997 | 1997 | . | . |
| Ceratophyllaceae | Ceratophyllum sp. | . | Dickinson. | Arend's Kettlehole Pond. Sec. 33, NE-SW. | T99N_R37W_Sec33 | 1 - 2' water | Grant, Martin L. | 14416 | 8/11/1960 | 1960 | . | 4327 |
| Chenopodiaceae | . | . | . | . | . | . | . | . | . | . | see Amaranthaceae | . |
| Cistaceae | Helianthemum becknellii Fern. | . | Emmet. | NE portion of Anderson Prairie | T100N_R34W_Sec 33 | Open area in oak woodland. Petals yellow. | Smith, Daryl | . | 6/22/1999 | 1999 | Det. by: Allison Bair | 5604 |
| Cistaceae | Helianthemum becknellii Fern. | . | Emmet. | NE portion of Anderson Prairie | T100N_R34W_Sec 33 | Open area in oak woodland. Petals yellow. | Smith, Daryl | . | 6/22/1999 | 1999 | Det. by: Allison Bair | 5605 |
| Cistaceae | Helianthemum bicknellii Fern. | . | Clayton. | NW of Edgewood | . | Prairie along RR. | Shimek, Bohumil | . | 8/19/1923 | 1923 | Orig. i.d.: Helianthemum majus BSP. Annot.10/12/2011 = H. bicknellii Fern. [anon.] Status of H. majus unresolved in The Plant List (www.theplantlist.org). | 2257 |
| Cistaceae | Helianthemum bicknellii Fern. | . | Emmet. | Nasby Woods, Estherville, 1 m. S. | . | Prairie in oak woods | Grant, Martin L. | 11682 | 8/20/1952 | 1952 | . | 1481 |
| Cistaceae | Helianthemum bicknellii Fern. | . | Johnson. | 5 miles W. of Iowa City. | . | . | Fuller, H.E. | . | 8/11/1934 | 1934 | Orig. i.d.: Helianthemum majus BSP. Annot.10/12/2011 = H. bicknellii Fern. [anon.] Status of H. majus unresolved in The Plant List (www.theplantlist.org). County not listed by collector, but location is distinct. | 3159 |
| Cistaceae | Helianthemum bicknellii Fern. | . | Muscatine. | Along RR. south of Wilton | . | Old fills and ballast | Shimek, Bohumil | . | 9/14/1922 | 1922 | Orig. i.d.: Helianthemum majus BSP. Annot.10/12/2011 = H. bicknellii Fern. [anon.] Status of H. majus unresolved in The Plant List (www.theplantlist.org). | 2258 |
| Cistaceae | Helianthemum sp. | . | Muscatine. | . | . | . | Reppert, F. | . | . | . | Orig. i.d.: Helianthemum sp. Annot.: H. bicknellii Fern., Robert F. Thorne, 1955; As determined, Robert A. Davidson, 05-01-1956; H. canadense, Robert F. Thorne, 1958. [The collector didn't give a date on the label] | 2573 |
| Cistaceae | Lechea stricta Leggett | . | Muscatine. | Near Nichols | . | Dry sandy knoll. | Reppert, F. | . | 09/01/1895 | 1895 | Orig. i.d.: Lechea sp. Annot.: L. stricta Leggett, Robert F. Thorne, 1955 | 3160 |
| Cleomaceae | Cleome serrulata Pursh | . | Plymouth. | Joy Creek. Sec. 30, NE1/4. | T91N_R48W_Sec30 | Pasture. Co pink | Grant, Martin L. | 11606 | 8/4/1952 | 1952 | Orig. i.d.: Cleome serrulata Pursh Annot.: !, JNB, 1983; see Peritoma serrulata in FNA (vol. 7, p. 207) | 1764 |
| Cleomaceae | Cleome serrulata Pursh | . | Plymouth. | Near Joy Creek. Sioux twnshp. Sec. 30, E 1/2. | T91N_R48W_Sec30 | Barnyard, abundant. | Thorne, Robert F. | 14673 | 8/12/1954 | 1954 | Orig. i.d.: Cleome serrulata Pursh Annot.: !, JNB, 1983; see Peritoma serrulata in FNA (vol. 7, p. 207) | 4552 |
| Cleomaceae | Polanisia dodecandra (L.) DC. | . | Dickinson. | Along lake shore at Stony Point on Spirit Lake. | . | Lake shore | Chilton, Mike | . | 8/11/1958 | 1958 | . | 2682 |
| Cleomaceae | Polanisia dodecandra (L.) DC. | . | Dickinson. | Lake Okoboji | . | Lake shore | Grant, Martin L. | 8076 | 8/8/1937 | 1937 | . | 4632 |
| Cleomaceae | Polanisia dodecandra (L.) DC. | . | Dickinson. | Spirit Lake | . | Beach | Grant, Martin L. | 8324 | 8/25/1938 | 1938 | . | 4680 |
| Cleomaceae | Polanisia dodecandra (L.) DC. | ssp. dodecandra | Dickinson. | Along Miller's Bay, W. Lake Okoboji | . | Sand | Shimek, Bohumil | . | 8/13/1910 | 1910 | Orig. i.d.: Polanisia graveolens (Young) (?) Raf. Annot.: = p. dodecandra (L.) DC. [anon.]; FNA[vol. 7, p. 202]. | 719 |
| Cleomaceae | Polanisia dodecandra (L.) DC. | ssp. dodecandra | Dickinson. | Crescent Inn Beach | . | . | Conard, H. S. | . | 8/16/1923 | 1923 | Orig. i.d.: Polanisia graveolens Raf. Annot.: = p. dodecandra (L.) DC. [anon.]; FNA[vol. 7, p. 202]. | 720 |
| Cleomaceae | Polanisia dodecandra (L.) DC. | ssp. dodecandra | Dickinson. | Found in the DeWall gravel pit located 3.4 miles south of Milford, 3 miles west, and 0.8 mile south | . | . | Jordan, W.E. | . | 7/5/1957 | 1957 | Orig. i.d.: Polanisia graveolens Raf. Annot.: = p. dodecandra (L.) DC. [anon.]; FNA[vol. 7, p. 202]. | 2685 |
| Cleomaceae | Polanisia dodecandra (L.) DC. | ssp. dodecandra | Dickinson. | Lakeside Laboratory | . | Sandy beach | Fox, William B. | 14 | 7/2/1941 | 1941 | Orig. i.d.: Polanisia graveolens Raf. Annot.: = p. dodecandra (L.) DC. [anon.]; FNA[vol. 7, p. 202]. | 2684 |
| Cleomaceae | Polanisia dodecandra (L.) DC. | ssp. dodecandra | Dickinson. | SE of Miller's Bay, W. Lake Okoboji. | . | Sandy beach. Style > 4 [anon.] | Shimek, Bohumil | . | 7/16/1912 | 1912 | Orig. i.d.: Polanisia graveolens Raf. Annot.: = p. dodecandra (L.) DC. [anon.]; FNA[vol. 7, p. 202]. | 2018 |
| Cleomaceae | Polanisia dodecandra (L.) DC. | ssp. dodecandra | Dickinson. | W. Okoboji | . | Beach | Lohman, M.L. | . | 8/15/1925 | 1925 | Orig. i.d.: Polanisia graveolens Raf. Annot.: = p. dodecandra (L.) DC. [anon.]; FNA[vol. 7, p. 202]. | 721 |
| Cleomaceae | Polanisia dodecandra (L.) DC. | ssp. trachysperma (T&G) Iltis | Dickinson. | Okoboji Creek | . | Sandy beach | Grant, Martin L. | 11246 | 8/4/1949 | 1949 | Orig. i.d.: Polanisia trachysperma T. & G. Annot.: = p. dodecandra (L.) DC. [anon.]; FNA (vol. 7, p.203] | 722 |
| Cleomaceae | Polanisia dodecandra (L.) DC. | ssp. trachysperma (T&G) Iltis | Dickinson. | Spirit Lake, W. side, near Minn. line | . | Beach | Conard, H. S. | . | 6/23/1923 | 1923 | Orig. i.d.: Polanisia trachysperma T. & G. Annot.: = p. dodecandra (L.) DC. [anon.]; FNA (vol. 7, p.203] | 724 |
| Cleomaceae | Polanisia dodecandra (L.) DC. | ssp. trachysperma (T&G) Iltis | Dickinson. | Spirit Lake, along NE edge. Sec. 15, SE 1/4. | T100N_R36W_Sec15 | On rocky shoreline. Style 1-2 mm. [anon.] | Adams, Doyle D. | . | 8/11/1958 | 1958 | Orig. i.d.: Polanisia trachysperma T. & G. Annot.: = p. dodecandra (L.) DC. [anon.]; FNA (vol. 7, p.203] | 2686 |
| Cleomaceae | Polanisia dodecandra (L.) DC. | ssp. trachysperma (T&G) Iltis | Dickinson. | Spirit Lake | . | . | Shimek, Bohumil | . | 07/30/1896 | 1896 | Orig. i.d.: Polanisia trachysperma T. & G. Annot.: = p. dodecandra (L.) DC. [anon.]; FNA (vol. 7, p.203] | 2683 |
| Cleomaceae | Polanisia dodecandra (L.) DC. | ssp. trachysperma (T&G) Iltis | Dickinson. | Terrace Park, W. Okoboji Lake. | . | Sandy beach. Style ca 3mm [anon.] | Shimek, Bohumil | . | 8/5/1916 | 1916 | Orig. i.d.: Polanisia trachysperma T. & G. Annot.: = p. dodecandra (L.) DC. [anon.]; FNA (vol. 7, p.203] | 1675 |
| Cleomaceae | Polanisia dodecandra (L.) DC. | ssp. trachysperma (T&G) Iltis | Dickinson. | Upper Gar Lake | . | Sandy beaches | Shimek, Bohumil | . | 9/1/1901 | 1901 | Orig. i.d.: Polanisia trachysperma T. & G. Annot.: = p. dodecandra (L.) DC. [anon.]; FNA (vol. 7, p.203] | 723 |
| Cleomaceae | Polanisia dodecandra (L.) DC. | var. trachysperma (Torr. & A. Gray) H.H. Iltis | Dickinson. | Spirit Lake, along NE edge. Sec. 15, SE 1/4. | T100N_R36W_Sec15 | On rocky shoreline | Adams, Doyle D. | . | 8/11/1958 | 1958 | . | 2681 |
| Clusiaceae | Hypericum cistifolium Lam. | . | Johnson. | . | . | . | Shimek, Bohumil | . | 06/26/1894 | 1894 | Annot.: = H. sphoerocarpum [?] Michx. [anon.] | 3463 |
| Clusiaceae | Hypericum cistifolium Lam. | . | Muscatine. | East of Adams | . | Sandy alluvial area | Shimek, Bohumil | . | 7/16/1910 | 1910 | Annot.: = H. sphoerocarpum Michx. [anon.] | 2255 |
| Clusiaceae | Hypericum majus (Gray) Brit. | . | Dickinson. | . | T99N_R37W_Sec35 | Wet ground | Shook, A. D. & E. O. Beal | 91 | 8/11/1950 | 1950 | Iowa Nat. Areas Inventory Jeanne N. Bates 1983-08-06 | 911 |
| Clusiaceae | Hypericum majus (Gray) Brit. | . | Dickinson. | Arend's Kettlehole. Sec. 33, SW1/4. | T99N_R37W_Sec33 | Wet prairie. Co yellow | Grant, Martin L. | 8901 | 8/9/1948 | 1948 | Iowa Nat. Areas Inventory Jeanne N. Bates 1983-08-06 | 1747 |
| Clusiaceae | Hypericum majus (Gray) Brit. | . | Dickinson. | Northwest of Milford | . | Dry Kettlehole, prairie | Shimek, Bohumil | . | 8/5/1911 | 1911 | Iowa Nat. Areas Inventory Jeanne N. Bates 1983-08-06 | 3464 |
| Clusiaceae | Hypericum majus (Gray) Brit. | . | Dickinson. | South of Miller's Bay | . | Swamp | Shimek, Bohumil | . | 8/1/1910 | 1910 | Orig. i.d.: Hypericum virginicum L. Annot.: H. majus (Gray) Britton, M.L. Grant, 1952. Iowa Nat. Areas Inventory Jeanne N. Bates 1983-08-06 | 913 |
| Clusiaceae | Hypericum majus (Gray) Brit. | . | Lyon. | Gitchie Manitou Park | . | Humid quartzite flats. Co yellow | Grant, Martin L. | 11261 | 8/8/1949 | 1949 | Iowa Nat. Areas Inventory Jeanne N. Bates 1983-08-06 | 912 |
| Clusiaceae | Hypericum mutilum L. | . | Louisa. | East of Grandview, Muscatine Isl. | . | Low places | Shimek, Bohumil and L.C. Myers | . | 08/01/1897 | 1897 | Sterile - not inc. in flora, Robert A. Davidson, 05-15-1956 | 3465 |
| Clusiaceae | Hypericum perforatum L. | . | Dickinson. | Cayler Prairie Monument. NW 1/4 Sec 17. East eskers of original prairie. | T99N_R37W_Sec17 | Petals yellow. | Plant Taxonomy Class | . | 6/24/1999 | 1999 | Det by: Dan Bacehowski and Cynthia Matthias. Hypericaceae of Eilers & Roosa [1994]. | 5606 |
| Clusiaceae | Hypericum prolificum L. | . | Lee. | Keokuk | . | . | . | . | 07/05/1895 | 1895 | H. spathulatum (Spac[?].) Steud., Robert A. Davidson, 05-15-1956 | 3469 |
| Clusiaceae | Hypericum punctatum Lam. | . | Delaware. | North of Earlville | . | Upland woods. | Shimek, Bohumil | . | 7/13/1913 | 1913 | . | 2256 |
| Clusiaceae | Hypericum punctatum Lam. | . | Lee. | Along road #3, 5.1 mi. west of Warren. | . | Upland prairie | Shimek, Bohumil | . | 9/19/1931 | 1931 | As determined, Robert A. Davidson, 05-1956 | 3467 |
| Clusiaceae | Hypericum punctatum Lam. | . | Louisa. | North side of Dewey's swamp, southwest of Cane | . | . | Shimek, Bohumil | . | 7/17/1927 | 1927 | Probably as determined, but immature and not inc. in flora, Robert A. Davidson, 05-1956 | 3466 |
| Clusiaceae | Hypericum pyramidatum Ait. | . | Johnson. | Iowa City | . | . | MacBride, T.H. | . | . | . | [No date of collection given on label] | 3468 |
| Clusiaceae | Triadenum fraseri (Spach) Gleason | . | Hancock. | Pilot Knob Park, Dead Man's Lake | . | Sphagnum bog. Corolla orange-colored | Grant, Martin L. | 12528 | 8/21/1954 | 1954 | Orig. i.d.: Hypericum virginicum L. var. fraseri (Spach.) Fern. Annot.: = Triadenum fraseri (Spach.) Gl., D.R., 07-1993; Triadenum virginicum var. fraseri (Spach) Cooperr., The Plants List (www.theplantslist.org). | 3470 |
| Convolvulaceae | Calystegia sepium (L.) R.Br. | . | Dickinson. | Cayler Prairie. Lakeville twnshp. Sec. 17, W 1/2. | . | Disturbed prairie, south end. | Thorne, Robert F. | 16293 | 8/6/1955 | 1955 | Orig. i.d.: Convolvulus sepium Annot.: = Calystegia sepium (L.) R.Br. [anon.]; Plants Database; The Plant List (www.theplantlist.org) | 4429 |
| Convolvulaceae | Calystegia sepium (L.) R.Br. | . | Dickinson. | Iowa Lakeside Laboratory | . | Open area, weedy forbs and grasses. Twining vine, fls white to pink. | Bloethe, D., K. Cogan, & S. Pedersen | . | 7/23/1973 | 1973 | Orig. i.d.: Convolvulus sepium Annot.: = Calystegia sepium (L.) R.Br. [anon.]; Plants Database; The Plant List (www.theplantlist.org) | 4916 |
| Convolvulaceae | Calystegia sepium (L.) R.Br. | . | Dickinson. | Lakeside Lab., campus, west fence. | . | . | Conard, H. S. | . | 6/30/1923 | 1923 | Orig. i.d.: Convolvulus sepium Annot.: = Calystegia sepium (L.) R.Br. [anon.]; Plants Database; The Plant List (www.theplantlist.org) | 1034 |
| Convolvulaceae | Calystegia sepium (L.) R.Br. | . | Dickinson. | Near roadside at the Triboji Slough at north end of Lake Okoboji. | . | Marshy area | Chilton, Mike | . | 8/12/1958 | 1958 | Orig. i.d.: Convolvulus sepium Annot.: = Calystegia sepium (L.) R.Br. [anon.]; Plants Database; The Plant List (www.theplantlist.org) | 2997 |
| Convolvulaceae | Calystegia sepium (L.) R.Br. | . | Dickinson. | W. Okoboji | . | Prairie | Shimek, Bohumil | . | 8/6/1910 | 1910 | Orig. i.d.: Convolvulus sepium Annot.: = Calystegia sepium (L.) R.Br. [anon.]; Plants Database; The Plant List (www.theplantlist.org) | 1035 |
| Convolvulaceae | Calystegia sepium (L.) R.Br. | . | Emmet. | . | . | . | Cratty, R.I. | . | 06/26/1887 | 1887 | Orig. i.d.: Convolvulus sepium Annot.: = Calystegia sepium (L.) R.Br. [anon.]; Plants Database; The Plant List (www.theplantlist.org) | 2998 |
| Convolvulaceae | Calystegia sepium (L.) R.Br. | . | Johnson. | Along RR. Coufals [see Cou Falls] | . | Open (somewhat) sandy place. | Shimek, Bohumil | . | 7/29/1909 | 1909 | Orig. i.d.: Convolvulus sepium Annot.: = Calystegia sepium (L.) R.Br. [anon.]; Plants Database; The Plant List (www.theplantlist.org) | 2999 |
| Convolvulaceae | Calystegia sepium (L.) R.Br. | . | Monona. | Onawa to Turin | . | Alluvial prairie | Shimek, Bohumil | . | 7/4/1909 | 1909 | Orig. i.d.: Convolvulus sepium Annot.: = Calystegia sepium (L.) R.Br. [anon.]; Plants Database; The Plant List (www.theplantlist.org) | 2302 |
| Convolvulaceae | Calystegia sepium (L.) R.Br. | . | Muscatine. | Along RR. 1 mi. S. of Wilton. | . | Weeds | Shimek, Bohumil | . | 6/28/1923 | 1923 | Orig. i.d.: Convolvulus sepium Annot.: = Calystegia sepium (L.) R.Br. [anon.]; Plants Database; The Plant List (www.theplantlist.org) | 2303 |
| Convolvulaceae | Convolvulus arvensis L. | . | Dickinson. | On railroad in S. edge of Milford. | . | . | Conard, H. S. | . | 7/6/1923 | 1923 | . | 1033 |
| Convolvulaceae | Convolvulus arvensis L. | . | Dickinson. | S. of Milford, along RR. Sec. 13, NW1/4. | T98N_R37W_Sec13 | Co white, pink tinged. | Grant, Martin L. | 12446 | 8/10/1954 | 1954 | . | 2530 |
| Convolvulaceae | Convolvulus arvensis L. | . | Johnson. | Iowa City | . | Introduced weed. | Cavanagh, Lucy M . | . | 6/8/1906 | 1906 | . | 2996 |
| Convolvulaceae | Cuscuta cephalanthi Engelm. | . | Dickinson. | Bank of Little Sioux River opp. Kettle Hole, 3 m. SW of Lab. | . | . | Conard, H. S. | . | 8/7/1923 | 1923 | Orig. det. G. Wittrock; Robert F. Thorne, 1955 | 1037 |
| Convolvulaceae | Cuscuta cephalanthi Engelm. | . | Dickinson. | Cayler Prairie. Sec. 17, SW-NW. | T99N_R37W_Sec17 | Gravel knob. On Liatris punctata, Petalostemon purpureum, and Solidago missouriensis. | Grant, Martin L. | 14389 | 8/1/1960 | 1960 | Orig. i.d.: Cuscuta campestris Yuncker [ a synonym of Cuscuta pentagona Engelm.]. Annot.: Prob. C. cephalanthii Engelm. [anon.] | 4629 |
| Convolvulaceae | Cuscuta cephalanthi Engelm. | . | Dickinson. | Okoboji | . | On Salix longifolia | Shimek, Bohumil | . | 8/1/1901 | 1901 | Robert F. Thorne, 1955 | 1036 |
| Convolvulaceae | Cuscuta cephalanthi Engelm. | . | Dickinson. | Silver Lake Fen. Silver Lake twnshp. Sec. 32, NW 1/4. | . | Parasitic on willows and herbs at lake margin (on Salix interior, S. rigida, Scutellaria lateriflora, Lycopus asper, Polygonum amphibium). | Thorne, Robert F. | 16200 | 7/28/1955 | 1955 | . | 4430 |
| Convolvulaceae | Cuscuta cephalanthi Engelm. | . | Dickinson. | Spooky Hollow. Sec. 4, NW-NW. | T98N_R37W_Sec4 | Fen. On Eupatorium maculatum & Impatiens capensis. | Grant, Martin L. | 14013 | 7/30/1959 | 1959 | Orig. i.d.: Cuscuta campestris Yuncker [ a synonym of Cuscuta pentagona Engelm.]. Annot.: Prob. C. cephalanthii Engelm. [anon.] | 4631 |
| Convolvulaceae | Cuscuta coryli Engelm. | . | Dickinson. | Bayview Beach, W. Lake Okoboji. Sec. 30, SW-SW. | T99N_R36W_Sec30 | Bur oak forest, on Solidago flexicaulis. | Grant, Martin L. | 14027 | 8/13/1959 | 1959 | Iowa Nat. Areas Inventory Jeanne N. Bates 1983-08-05 | 4630 |
| Convolvulaceae | Cuscuta coryli Engelm. | . | Hancock. | Pilot Knob State Park, Dead Man's Lake. Ellington twnshp. Sec. 3 & 4. | . | Parasitic on Xanthoxylum americanum, Phryma, Solidago, and other plants along northeast margin of lake. | Thorne, Robert F. | 16275 | 8/4/1955 | 1955 | Iowa Nat. Areas Inventory Jeanne N. Bates 1983-08-05 | 4578 |
| Convolvulaceae | Cuscuta glomerata Choisy | . | Dickinson. | . | . | On Solidago canadensis | Takehara, Kenneth N. | 11 | 7/22/1949 | 1949 | . | 1038 |
| Convolvulaceae | Cuscuta glomerata Choisy | . | Dickinson. | By Little Sioux River, 3 mi. SW of Lakeside Lab. | . | Lily meadow | Sloan, M.L. | . | 7/26/1923 | 1923 | Original det. G. Whittrock | 1041 |
| Convolvulaceae | Cuscuta glomerata Choisy | . | Dickinson. | Floete Prairie | . | Low ground | Brown, Joseph H. | . | 8/6/1955 | 1955 | . | 3001 |
| Convolvulaceae | Cuscuta glomerata Choisy | . | Dickinson. | Iowa Lakeside Laboratory | . | Low area, N40. Host: Oenothera biennis. Bright orange | Bloethe, D., K. Cogan, & S. Pedersen | . | 7/23/1973 | 1973 | . | 4917 |
| Convolvulaceae | Cuscuta glomerata Choisy | . | Dickinson. | SW side of Silver Lake. | . | Bog. | Shimek, Bohumil | . | 8/25/1934 | 1934 | . | 1784 |
| Convolvulaceae | Cuscuta glomerata Choisy | . | Dickinson. | Spirit Lake | . | Sandy prairie | Shimek, Bohumil | . | 8/1/1901 | 1901 | . | 1040 |
| Convolvulaceae | Cuscuta glomerata Choisy | . | Dickinson. | Spooky Hollow Fen. Sec. 4, NW-NW. | T98N_R37W_Sec4 | Bushy hillside, on Solidago, Helianthus, Asclepias, and Symphoricarpos. Fls. white or yellow | Grant, Martin L. | 11218 | 7/22/1949 | 1949 | . | 1039 |
| Convolvulaceae | Cuscuta gronovii Willd. ex Schult. | . | Dickinson. | Arnold's Park, W. Lake Okoboji. | . | Woods, on Helianthus [?] | Shimek, Bohumil | . | 8/9/1910 | 1910 | Orig. i.d.: Cuscuta obtusiflora H.B.K. Annot.: C. gronovii Willd., Robert F. Thorne, 1955 | 1043 |
| Convolvulaceae | Cuscuta gronovii Willd. ex Schult. | . | Dickinson. | By Little Sioux River. | . | Hanging bog, on Impatiens biflora, Eupatorium purpureum. | Lohman, M.L. | . | 8/13/1925 | 1925 | Orig. i.d.: Cuscuta obtusiflora H.B.K. Annot.: C. gronovii Willd., Robert F. Thorne, 1955. Dickinson Co. is assumed from the locality info and other specimens by this collector on same date. | 1044 |
| Convolvulaceae | Cuscuta gronovii Willd. ex Schult. | var. latifolia Engelm. | Dickinson. | Hayward Bay | . | . | Conard, H. S. | . | 8/17/1923 | 1923 | Original det. G. Wittrock; Robert F. Thorne, 1955 | 1042 |
| Convolvulaceae | Cuscuta pentagona Engelm. | . | Dickinson. | Emerson's Bay at NW campus. | . | . | Conard, H. S. | . | 8/17/1923 | 1923 | Original Det. G.L.W. = Cuscuta pentagona typica; C. gronovii Willd. ?, Robert F. Thorne, 1955. | 1045 |
| Convolvulaceae | Cuscuta polygonorum Engelm. | . | Dickinson. | Emerson's Bay | . | . | Conard, H. S. | . | 8/16/1923 | 1923 | Original det. G.W. Cuscuta polygonorum Engelm., Robert F. Thorne, 1955. | 1047 |
| Convolvulaceae | Cuscuta polygonorum Engelm. | . | Dickinson. | Lower Gar Lake. Sec. 32, SW-SE. | T99N_R36W_Sec32 | Marsh | Grant, Martin L. | 8856 | 7/30/1948 | 1948 | Robert F. Thorne, 1955 | 1046 |
| Convolvulaceae | Ipomoea pandurata (L.) G. F. W.Mey. | . | Lee. | Keokuk | . | . | Shimek, Bohumil | . | 06/01/1897 | 1897 | Sterile-not inc. in Flora, Robert A. Davidson, 04-06-1956 | 4900 |
| Cornaceae | Cornus alternifolia L. f. | . | Clay. | Wanata Park, W. | . | Red oak woods. Fruit blue, shrub, 12' | Grant, Martin L. | 12429 | 8/3/1954 | 1954 | . | 2524 |
| Cornaceae | Cornus alternifolia L. f. | . | Clayton. | Pike's Peak, McGregor | . | Deep upland woods | Shimek, Bohumil | . | 8/12/1927 | 1927 | . | 2279 |
| Cornaceae | Cornus alternifolia L. f. | . | Emmet. | Fort Defiance State Park, 1 mile west of Estherville. Estherville twnshp. Sec. 16. | . | Rich woods. | Thorne, Robert F. | 13272 | 8/9/1953 | 1953 | . | 4506 |
| Cornaceae | Cornus amomum Mill. | . | Winneshiek. | Decorah | . | . | Savage, T.E. | . | 05/29/1899 | 1899 | Annot.: = C. obliqua Raf. [anon.] | 2443 |
| Cornaceae | Cornus drummondi C.A. Meyer | . | Muscatine. | Lake twnshp. Sec. 7 | . | Roadside | Thorne, Robert F. | 13904 | 9/29/1951 | 1951 | . | 4613 |
| Cornaceae | Cornus obliqua Raf. | . | Dickinson. | Beck Canal, Lake Okoboji. Sec. 24, SW-SW. | T99N_R37W_Sec24 | Slough- woods edge. Shrub 9', Co white; pith white; fruit green. | Grant, Martin L. | 8718 | 6/25/1948 | 1948 | Orig. i.d.: Cornus racemosa Lam. Annot.: C. obliqua Raf., Robert F. Thorne, 1958. ? MLG 1960 | 985 |
| Cornaceae | Cornus obliqua Raf. | . | Dickinson. | Emerson's Bay | . | Border of swamp. | Shimek, Bohumil | . | 6/24/1912 | 1912 | Orig. i.d.: Cornus amomum Mill. Annot.: Not likely, BS; ? Cornus baileyi Coult & Evans ? APK; C. obliqua Raf., M.L. Grant, 1948; ! 1963 [anon.]. | 982 |
| Cornaceae | Cornus obliqua Raf. | . | Dickinson. | Gull Point State Park. Lakeville twnshp. | . | Dry or moist woods | Thorne, Robert F. | 13536 | 8/19/1953 | 1953 | Annot.: = C. amomum P.Mill, ssp. obliqua (Raf.) J.S. Wils. [anon.] | 4420 |
| Cornaceae | Cornus obliqua Raf. | . | Dickinson. | Iowa Lakeside Laboratory | . | Woody slope near water front. Shrub. | Bloethe, D., K. Cogan, & S. Pedersen | . | 7/19/1973 | 1973 | Annot.: = C. amomum ssp. obliqua [anon.] | 4922 |
| Cornaceae | Cornus obliqua Raf. | . | Dickinson. | N. of sandspit, Miller's Bay. Sec. 23, SW-NE. | T99N_R37W_Sec23 | Rocky lake shore. Frt. green | Grant, Martin L. | 8819 | 7/20/1948 | 1948 | Annot.: = C. amomum [anon.] | 983 |
| Cornaceae | Cornus obliqua Raf. | . | Dickinson. | Near Little Miller's Bay. Lakeville twnshp. Sec. 23. | . | Moist ground | Thorne, Robert F. | 12970 | 7/10/1953 | 1953 | Annot.: = C. amomum ssp. oblique [anon.] | 4419 |
| Cornaceae | Cornus obliqua Raf. | . | Dickinson. | Western margin of Little Miller's Bay, Iowa Lakeside Laboratory campus. Lakeville twnshp. Sec. 23. | . | Tall shrub at margin of Little Miller's Bay. | Thorne, Robert F. | 19571 | 6/24/1958 | 1958 | Annot.: = C. amomum ssp. obliqua [anon.] | 4421 |
| Cornaceae | Cornus racemosa Lam. | . | Cerro Gordo. | Highlands, 15th St. & Kentucky Ave., Mason City. | . | Along edge of upland woods. | Shimek, Bohumil | . | 9/15/1920 | 1920 | Orig. i.d.: Cornus paniculata L'Her. Annot.: = C. foemina ssp. racemosa [anon.]; No style [anon.]; = C. racemosa Lam. [anon.]; The Plant List (www.theplantlist.org). | 2281 |
| Cornaceae | Cornus racemosa Lam. | . | Clayton. | S. of McGregor | . | Along base of wooded bluff. | Shimek, Bohumil | . | 6/17/1923 | 1923 | Orig. i.d.: Cornus paniculata L'Her. Annot.: = C. racemosa Lam. [anon.]; Style dilated [anon.]; = C. foemina ssp. racemosa [anon.]; The Plant List (www.theplantlist.org). | 2282 |
| Cornaceae | Cornus racemosa Lam. | . | Dickinson. | Along Little Sioux River, 2 miles west of Milford. Okoboji twnshp. Sec. 10. | . | Ungrazed woods. | Thorne, Robert F. | 12914 | 7/2/1953 | 1953 | Annot.: = C. foemina ssp. racemosa [anon.] | 4422 |
| Cornaceae | Cornus racemosa Lam. | . | Dickinson. | Milford Woods. Sec. 10, SE-NW. | T98N_R37W_Sec10 | Oak woods, . Shrub, 7' tall, | Grant, Martin L. | 8959 | 8/13/1948 | 1948 | Annot.: Style dilated!, Martin L. Grant; ! '63; = C. foemina ssp. racemosa [anon.] | 984 |
| Cornaceae | Cornus racemosa Lam. | . | Dickinson. | W. of Milford | . | Woods | Holmes, C.M. | . | 8/16/1933 | 1933 | Orig. i.d.: Cornus paniculata L'Her. Annot.: C. racemosa Lam., Martin L. Grant, 1948, No style; ! 1963. = C. foemina ssp. racemosa [anon.]; The Plant List (www.theplantlist.org). | 986 |
| Cornaceae | Cornus racemosa Lam. | . | Emmet. | Estherville woods along West Branch Des Moines River. Sec. 14, SW 1/4. | T99N_R34W_Sec14 | Shrub. | Thorne, Robert F. | 18535 | 7/19/1957 | 1957 | Annot.: = C. foemina ssp. racemosa [anon.] | 4507 |
| Cornaceae | Cornus racemosa Lam. | . | Emmet. | Nasby Woods, Estherville, 1 m. S. | . | Oak woods. Fruit white, leaves 5 cm. wide, Tree, 7', bark smooth, gray. | Grant, Martin L. | 11681 | 8/20/1952 | 1952 | No style, Martin L. Grant, ! '63. | 1487 |
| Cornaceae | Cornus rugosa Lam. | . | Clayton. | Pike's Peak, McGregor. | . | Deep woods. | Shimek, Bohumil | . | 8/12/1927 | 1927 | Orig. i.d.: Cornus circinata L'Her. Annot.: = C. rugosa [anon.]; The Plant List (www.theplantlist.org) | 2280 |
| Cornaceae | Cornus rugosa Lam. | . | Emmet. | Estherville woods along West Branch Des Moines River. Sec. 14, SW 1/4. | T99N_R34W_Sec14 | Tall shrub on river bluff. | Thorne, Robert F. | 19543 | 7/19/1957 | 1957 | . | 4508 |
| Cornaceae | Cornus stolonifera Michx. | . | Dickinson. | Along Little Sioux River. Okoboji twnshp. | T98N_R37W_Sec4 | Hanging bogs. Tall shrub. | Thorne, Robert F. | 12980 | 7/10/1953 | 1953 | Iowa Nat. Areas Inventory Jeanne N. Bates 1983-08-05 | 4423 |
| Cucurbitaceae | Cucumis sativus L. | . | Dickinson. | Lakeside Lab, garden | . | . | Conard, H. S. | . | 8/9/1923 | 1923 | . | 1228 |
| Cucurbitaceae | Cucurbita pepo L. | . | Dickinson. | Floete's field. | . | . | Conard, H. S. | . | 8/21/1923 | 1923 | . | 1229 |
| Cucurbitaceae | Echinocystis lobata (Michx.) T. & G. | . | Dickinson. | Hotel Orleans | . | Low grounds | Shimek, Bohumil | . | 8/16/1909 | 1909 | . | 1231 |
| Cucurbitaceae | Echinocystis lobata (Michx.) T. & G. | . | Dickinson. | Iowa Lakeside Lab., N40 | . | Tendrilled vine | Bloethe, D., K. Cogan, & S. Pedersen | . | 7/24/1973 | 1973 | . | 5014 |
| Cucurbitaceae | Echinocystis lobata (Michx.) T. & G. | . | Dickinson. | Iowa Lakeside campus | . | Bur oak woodland | Grant, Martin L. | 14409 | 8/9/1960 | 1960 | . | 4321 |
| Cucurbitaceae | Echinocystis lobata (Michx.) T. & G. | . | Dickinson. | NE corner of Golf grounds, beside canal. | . | . | Conard, H. S. | . | 7/17/1923 | 1923 | . | 1230 |
| Cucurbitaceae | Echinocystis lobata (Michx.) T. & G. | . | Dickinson. | Sec. 28, NE1/4. | T100N_R38W_Sec28 | Roadside ditch | Byerly, Dale M. | . | 8/10/1957 | 1957 | . | 3030 |
| Cucurbitaceae | Echinocystis lobata (Michx.) T. & G. | . | Johnson. | . | . | . | Shimek, Bohumil | . | 09/01/1893 | 1893 | . | 2353 |
| Cucurbitaceae | Echinocystis lobata (Michx.) T. & G. | . | Lyon. | Gitchie Manitou | . | Wooded river bank. | Grant, Martin L. | 12490 | 8/12/1954 | 1954 | . | 2540 |
| Family | Scientific Name | Subspecific Category |
County | Locality | Tshp•Range•Sec. | Collector's Notes |
Collector | Collection Number |
Collection Date |
Collection Year |
Special Notes and Annotations |
Accession Number |
| Cactaceae | Opuntia fragilis (Nutt.) Haw. | . | Cottonwood | Shenk corner. Sec. 5, SE-SE. | T107N_R35W_Sec5 | Rock (outcrop) flat. Prostrate | Grant, Martin L. | 8751 | 7/2/1948 | 1948 | Annot.: Iowa Nat. Areas Inventory Jeanne N. Bates 1983-08-05 | 919 |
| Cactaceae | Opuntia fragilis (Nutt.) Haw. | . | Rock | Luverne | . | Quartzite | Grant, Martin L. | 8317 | 8/24/1938 | 1938 | . | 1728 |
| Cactaceae | Opuntia tortispina Engelm. | . | Rock | 3 1/2 miles north of Luverne. | . | On Sioux quartzite surface bedrock. | Thorne, Robert F. | 14344 | 6/30/1954 | 1954 | . | 4564 |
| Cactaceae | Opuntia tortispina Engelm. | . | Rock | 3 mi. n. of Luverne | . | Quartzite prairie. Co pale greenish-yellow, 3.5 cm. long | Grant, Martin L. | 12242 | 6/30/1954 | 1954 | . | 1973 |
| Cactaceae | Opuntia tortispina Engelm. | . | Rock | Luverne | . | Quartzite | Grant, Martin L. | 8318 | 8/24/1939 | 1939 | . | 1727 |
| Caprifoliaceae | Symphoricarpos occidentalis Hook. | . | Rock | Luverne | . | Quartzite. Lvs. cut by bees | Grant, Martin L. | 8310 | 8/24/1938 | 1938 | . | 1731 |
| Caryophyllaceae | Silene antirrhina L. | . | Cottonwood | Shenk corner. Sec. 5, SE-SE. | T107N_R35W_Sec5 | . | Grant, Martin L. | 8755 | 7/2/1948 | 1948 | . | 605 |
| Caryophyllaceae | Silene vulgaris (Moench) Garcke | . | Rock | 3 mi. N. of Luverne | . | Quartzite prairie. Co white | Grant, Martin L. | 12239 | 6/30/1954 | 1954 | Orig. i.d.: Silene cucubalus Wibel Annot.: = S. vulgaris (Moench.) Garcke [anon.] | 1922 |
| Convolvulaceae | Cuscuta glomerata Choisy | . | Cottonwood | W. side Talcott Lake. | . | Low prairie | Grant, Martin L. | 12399 | 8/1/1954 | 1954 | . | 2531 |
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