| 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 |
| Rosaceae | Agrimonia gryposepala Wallr. | . | Dickinson. | 2 miles west of Milford, along the Little Sioux River | . | Along roadside in upland woods | Severe, Doris | 2 | 7/18/1957 | 1957 | . | 4124 |
| Rosaceae | Agrimonia gryposepala Wallr. | . | Dickinson. | Elm Crest, West Okoboji Lake | . | Woods | Shimek, Bohumil | . | 7/26/1911 | 1911 | . | 5255 |
| Rosaceae | Agrimonia gryposepala Wallr. | . | Dickinson. | Gull Point State Park | . | . | Severe, Doris | 62 | 8/9/1957 | 1957 | . | 4125 |
| Rosaceae | Agrimonia gryposepala Wallr. | . | Dickinson. | Milford Woods. Okoboji twnshp. Sec. 10, N central. | . | . | Mansmith, Mikael | . | 7/11/1955 | 1955 | Orig. i.d.: Agrimonia striata Michx. Annot.: A. gryposepala Wallr., L. Eilers, 08-1980 | 4622 |
| Rosaceae | Agrimonia gryposepala Wallr. | . | Dickinson. | Milford Woods. Sec. 10, NE-NW. | T98N_R37W_Sec10 | Oak-ash forest. Co yellow | Grant, Martin L. | 11585 | 7/30/1952 | 1952 | . | 1460 |
| Rosaceae | Agrimonia gryposepala Wallr. | . | Dickinson. | Milford Woods | . | . | Downing, W.L. | 7 | 7/22/1949 | 1949 | Orig. i.d.: Agrimonia striata Michx. Annot.: A. gryposepala Wallr., Martin L. Grant, 1954 | 738 |
| Rosaceae | Agrimonia parviflora Ait. | . | Muscatine. | 8 mi. northwest of Muscatine | . | Swampy place among old dunes, near pond. | Shimek, Bohumil | . | 8/15/1925 | 1925 | . | 2189 |
| Rosaceae | Agrimonia pubescens Wallr. | . | Dickinson. | East shore of West Okoboji Lake | T99N_R37W_Sec12 | Open woods, Oak woods. | Naffziger, Joyce | 29 | 8/4/1961 | 1961 | . | 5332 |
| Rosaceae | Agrimonia pubescens Wallr. | . | Dickinson. | Spirit Lake | . | . | Shimek, Bohumil | . | 08/01/1896 | 1896 | Orig. i.d.: Agrimonia eupatoria L. Annot.: A. pubescens Wallr., Robert F. Thorne, 1954 | 5254 |
| Rosaceae | Agrimonia pubescens Wallr. | . | Hancock. | Pilot Knob State Park | T97N_R23W_ Sec3&4 | Rich woods | Thorne, Robert F. | 14608 | 8/10/1954 | 1954 | . | 4572 |
| Rosaceae | Agrimonia pubescens Wallr. | . | Johnson. | Penn twnshp. | . | Upland woods and wooded slopes | Shimek, Bohumil | . | 08/01/1897 | 1897 | Orig. i.d.: Agrimonia gryposepala Wallr. Annot.: A. pubescens Wallr., Robert F. Thorne, 1958 | 2188 |
| Rosaceae | Agrimonia striata Michx. | . | Clayton. | North of (North of Mc Gregor) Marquette | . | Woods on top of ridge | Shimek, Bohumil | . | 8/23/1920 | 1920 | A. pubescens Wallr., Robert F. Thorne, 1955 | 2190 |
| Rosaceae | Agrimonia striata Michx. | . | Dickinson. | 3 m. NW of Lakeside Lab. | . | Moist prairie | Conard, H. S. | . | 7/16/1923 | 1923 | Orig. i.d.: Agrimonia gryposepala Wallr. Annot.: A. striata Mx. ?, Robert F. Thorne, 1954; A. striata Michx., Martin L. Grant, 1954; Iowa Nat. Areas Inventory , W.P.,1983-08-06. | 737 |
| Rosaceae | Agrimonia striata Michx. | . | Dickinson. | 3 mi. SW of Milford. Sec. 26, SW-NW. | T98N_R37W_Sec26 | Low prairie | Grant, Martin L. | 14396 | 8/3/1960 | 1960 | Iowa Nat. Areas Inventory, W.P., 1983-08-06 | 3918 |
| Rosaceae | Agrimonia striata Michx. | . | Dickinson. | Cayler Prairie. Lakeville twnshp. Sec. 17, NW 1/4. | . | Prairie swale, rare | Thorne, Robert F. | 16062 | 6/21/1955 | 1955 | Iowa Nat. Areas Inventory, ! with glands on undersurface of leaves, W.P., 1983-08-06 | 4410 |
| Rosaceae | Agrimonia striata Michx. | . | Dickinson. | Emerson's Bay, West Lake Okoboji | . | Border of woods | Shimek, Bohumil | . | 8/9/1910 | 1910 | Iowa Nat. Areas Inventory, W.P.,1983-08-06 | 740 |
| Rosaceae | Agrimonia striata Michx. | . | Dickinson. | Iowa Lakeside Laboratory | . | Acer negundo-Quercus macrocarpa woodland. Fls yellow | Bloethe, D., K. Cogan, & S. Pedersen | . | 7/12/1973 | 1973 | Orig. i.d.: Agrimonia pubescens Wallr. Annot.: A. striata Michx., L. Eilers, 08-1980 | 5139 |
| Rosaceae | Agrimonia striata Michx. | . | Dickinson. | Iowa Lakeside Laboratory | . | N40, wooded area | Bloethe, D., K. Cogan, & S. Pedersen | . | 7/24/1973 | 1973 | Orig. i.d.: Agrimonia gryposepala Wallr. Annot.: A. striata Michx., L. Eilers, 08-1993 | 5156 |
| Rosaceae | Agrimonia striata Michx. | . | Dickinson. | Milford Woods. Sec. 10, NE-NW. | T98N_R37W_Sec10 | Oak-ash forest. Co yellow | Grant, Martin L. | 11590 | 7/30/1952 | 1952 | Iowa Nat. Areas Inventory, W.P.,1983-08-06 | 1461 |
| Rosaceae | Agrimonia striata Michx. | . | Dickinson. | Swan Lake. Sec. 23, SW1/4. | T100N_R35W_Sec23 | Clearing in bur oak woods. Co yellow | Grant, Martin L. | 14030 | 8/10/1959 | 1959 | Iowa Nat. Areas Inventory, W.P., 1983-08-06 | 3992 |
| Rosaceae | Agrimonia striata Michx. | . | Lyon. | Gitchie Manitou State Park. Sec. 11, SW1/4. | T100N_R49W_Sec11 | In shade by old quarry | Thorne, Robert F. | 14633 | 8/12/1954 | 1954 | Iowa Nat. Areas Inventory, W.P., 1983-08-06 | 4533 |
| Rosaceae | Agrimonia striata Michx. | . | Osceola. | Rush Lake | . | Sandy shore. Co yellow | Grant, Martin L. | 11225 | 7/29/1949 | 1949 | Iowa Nat. Areas Inventory, W.P.,1983-08-06 | 739 |
| Rosaceae | Amelanchier alnifolia Nutt. | . | Dickinson. | Lakeside Lab. campus | . | . | Conard, H. S. | . | 7/4/1923 | 1923 | Orig. i.d.: Amelanchier spicata (Lam.) Koch. Annot.: ?, Robert F. Thorne; ?, APK, ?; A. alnifolia Nutt., Martin L. Grant, 1954 | 766 |
| Rosaceae | Amelanchier alnifolia Nutt. | . | Dickinson. | The Cove, West Okoboji | . | Banks (wooded) | Shimek, Bohumil | . | 5/1/1912 | 1912 | Orig. i.d.: Amelanchier spicata (Lam.) Koch. Annot.: ?, Robert F. Thorne; ?, APK. ?; A. alnifolia, Martin L. Grant, 1954 | 764 |
| Rosaceae | Amelanchier alnifolia Nutt. | . | Johnson. | Above Turkey Creek. Newport twnshp. | . | Limestone bluff. | Shimek, Bohumil | . | 06/01/1898 | 1898 | A. arborea [anon.] | 2191 |
| Rosaceae | Amelanchier arborea (Michx. f.) Fern. | . | Fremont. | Waubonsie State Park | . | Wooded ravine | Fay, M.J. | 4397 | 7/31/1952 | 1952 | . | 4725 |
| Rosaceae | Amelanchier arborea (Michx. f.) Fern. | . | Johnson. | Above Turkey Creek. Newport twnshp. Sec. 23, NW 1/4. | . | Small tree in upland woods and north-facing bluff. | Thorne, Robert F. | 13987 | 5/13/1954 | 1954 | . | 4470 |
| Rosaceae | Amelanchier canadensis (L.) Medic. | . | Clayton. | Pike's Peak, McGregor | . | Deep upland woods | Shimek, Bohumil | . | 8/12/1927 | 1927 | Annot.: A. arborea [anon.] | 2192 |
| Rosaceae | Amelanchier canadensis (L.) Medic. | . | Harrison. | Snider's Hollow, Missouri Valley | . | Woods | Shimek, Bohumil | . | 4/18/1911 | 1911 | Annot.: = A. arborea [anon.] | 4126 |
| Rosaceae | Amelanchier interior Nielsen | . | Linn. | Palisades-Kepler State Park, along Cedar River. | . | Shrub on lip of bluff | Thorne, Robert F. | 15742 | 5/1/1955 | 1955 | . | 4611 |
| Rosaceae | Amelanchier sanguinea (Pursh) DC. | . | Clay. | Wanata Park, E. | . | Forest-prairie border. Low shrub | Grant, Martin L. | 12433 | 8/3/1954 | 1954 | . | 2503 |
| Rosaceae | Amelanchier sanguinea (Pursh) DC. | . | Clay. | Wanata State Park, 1/2 mile South of Peterson on Little Sioux River, . Sec. 33, S 1/2. | T94N_R38W_Sec33 | In rich woods. Shrub 2 m. tall | Thorne, Robert F. | 14534 | 8/3/1954 | 1954 | . | 4522 |
| Rosaceae | Amelanchier sanguinea (Pursh) DC. | . | Dickinson. | East side of Lower Gar Lake | . | Wooded bank | Shimek, Bohumil | . | 9/20/1931 | 1931 | Orig. i.d.: Amelanchier spicata (Lam.) Koch. Annot.: A. sanguinea (Pursh.) DC., Martin L. Grant, 1954 | 1676 |
| Rosaceae | Amelanchier sanguinea (Pursh) DC. | . | Dickinson. | North of Hayward's Bay, West Okoboji Lake | . | Woods | Shimek, Bohumil | . | 7/8/1916 | 1916 | Orig. i.d.: Amelanchier spicata (Lam.) Koch. Annot.: A. sanguinea (Pursh.) DC., Robert F. Thorne, 1954 | 5251 |
| Rosaceae | Amelanchier sanguinea (Pursh) DC. | . | Dickinson. | South of Emerson's Bay, West Lake Okoboji | . | Woods | Shimek, Bohumil | . | 8/9/1910 | 1910 | Orig. i.d.: Amelanchier spicata (Lam.) Koch. Annot.: ?. APK; A. sanguinea (Pursh.) DC., Robert F. Thorne, 1955 | 763 |
| Rosaceae | Amelanchier sanguinea (Pursh) DC. | . | Dickinson. | South of Pillsbury's Point, West Okoboji Lake | . | Wooded banks | Shimek, Bohumil | . | 7/3/1913 | 1913 | Orig. i.d.: Amelanchier canadensis (L.) Medic. Annot.: ?, APK; This specimen is A. spicata, B. Shimek; A. sanguinea (Pursh.) DC., Martin L. Grant, 1954 | 765 |
| Rosaceae | Amelanchier sanguinea (Pursh) DC. | . | Dickinson. | Western margin of Little Miller's Bay, Iowa Lakeside Laboratory, campus | T99N_R37W_Sec23 | . | Thorne, Robert F. | 19568 | 6/24/1958 | 1958 | . | 4411 |
| Rosaceae | Amelanchier sanguinea (Pursh) DC. | . | Dubuque. | White Pine Hollow State Forest, 3 miles NW of Luxemburg . Liberty twnshp. Sec. 6,7,8. | . | Small tree on 1s. talus in cold air drainage on yew-covered, north-facing bluff | Thorne, Robert F. | 14050 | 5/15/1954 | 1954 | . | 4597 |
| Rosaceae | Amelanchier sanguinea (Pursh) DC. | . | Emmet. | Iowa Lake | . | . | Shimek, Bohumil | . | 09/01/1895 | 1895 | Original i.d.: Amelanchier spicata (Lam.) C. Koch. = A. rotundifolia Roem. Annotation: A. sanguinea, Robert F. Thorne, 1954 | 4726 |
| Rosaceae | Amelanchier sanguinea (Pursh) DC. | . | Sioux. | Oak Grove State Park. Buncambe twnshp. Sec. 12. | . | Rich woods, dry woods, and dry prairie on loess hills. Tall shrub | Thorne, Robert F. | 14326 | 7/2/1954 | 1954 | . | 4560 |
| Rosaceae | Crataegus calpodendron (Ehrb.) Medic. | . | Dickinson. | Spirit Lake | . | . | Shimek, Bohumil | . | 07/30/1896 | 1896 | Orig. i.d.: Crataegus coccinea L. p.p. Annot.: C. calpodendron, Robert F. Thorne, 1956 | 4128 |
| Rosaceae | Crataegus calpodendron (Ehrb.) Medic. | . | Johnson. | Turkey Creek | . | . | Shimek, Bohumil | . | 05/09/1895 | 1895 | Orig. i.d.: Crataegus coccinea L. p.p. var. mollis T. & G. Annot.: C. calpodendron (Ehrb.) Medic., Robert F. Thorne, 1958 | 4129 |
| Rosaceae | Crataegus calpodendron (Ehrb.) Medic | . | Emmet. | Fort Defiance State Park | . | Upland woods, S. side park. Small tree. | Thorne, Robert F. | 19584 | 6/27/1958 | 1958 | . | 4504 |
| Rosaceae | Crataegus mollis (T. & G.) Scheele | . | Dickinson. | Arnold's Park | . | Woods | Shimek, Bohumil | . | 8/1/1901 | 1901 | . | 768 |
| Rosaceae | Crataegus mollis (T. & G.) Scheele | . | Dickinson. | East Okoboji Woods. Sec. 11, SW-SW. | T99N_R36W_Sec11 | Oak woods. Tree, 20', 7 in. dbh | Grant, Martin L. | 11534 | 6/30/1952 | 1952 | . | 1462 |
| Rosaceae | Crataegus mollis (T. & G.) Scheele | . | Dickinson. | Elmcrest | . | Woods | Conard, H. S. | . | 7/9/1923 | 1923 | . | 767 |
| Rosaceae | Crataegus mollis (T. & G.) Scheele | . | Johnson. | Lake McBride State Park, Big Grove Township | . | Small tree in hilltop meadow | Pfeifer, Howard Wm. | . | 7/1/1956 | 1956 | . | 4727 |
| Rosaceae | Crataegus punctata Jacq. | . | Dickinson. | East Okoboji Woods. Sec. 11, NW-SW. | T99N_R36W_Sec11 | Oak woods. Tree, 18', 6 in. dbh | Grant, Martin L. | 11533 | 6/30/1952 | 1952 | . | 1463 |
| Rosaceae | Crataegus punctata Jacq. | . | Dickinson. | South of Emerson's Bay, West Lake Okoboji | . | Woods | Shimek, Bohumil | . | 8/5/1910 | 1910 | Orig. i.d.: Crataegus tomentosa L. Annot.: Very doubtful, BS, 1933; C. punctata Jacq., Martin L. Grant, 1952 | 769 |
| Rosaceae | Crataegus punctata Jacq. | . | Webster. | Fort Dodge | . | . | Shimek, Bohumil | . | 07/05/1897 | 1897 | . | 4130 |
| Rosaceae | Crataegus punctata Jacq. | var. aurea Ait. | Cerro Gordo. | Buffalo Slough, NE Mason City | . | Slough border | Grant, Martin L. | 12294 | 7/8/1954 | 1954 | . | 1936 |
| Rosaceae | Crataegus succulenta Schrad. | . | Lyon. | Gitchie Manitou State Park. Sec. 11, SW1/4. | T100N_R49W_Sec11 | Small tree by old quarry. | Thorne, Robert F. | 14635 | 8/12/1954 | 1954 | . | 4534 |
| Rosaceae | Crataegus succulenta Schrad. | var. macracantha (Todd.) Egglest. | Dickinson. | Hottes Lake. Sec. 18, NE-SE. | T100N_R36W_Sec18 | Oak woods. Tree 8' | Grant, Martin L. | 11206 | 7/19/1949 | 1949 | . | 1757 |
| Rosaceae | Crataegus succulenta Schrad. | var. macracantha (Todd.) Egglest. | Dickinson. | Lakeside Laboratory, campus | . | Lake bluff | Conard, H. S. | . | 7/4/1923 | 1923 | Orig. i.d.: Crataegus macracantha Todd. Annot.: = C. succulenta Schrad. var. macracantha (Todd.) Egglest., Martin L. Grant, 1952 | 770 |
| Rosaceae | Crataegus succulenta Schrad. | var. macracantha (Todd.) Egglest. | Winneshiek. | Decorah | . | . | Savage, T.E. | . | 05/29/1899 | 1899 | Orig. i.d.: Crataegus macracantha Todd. Annot.: = C. succulenta Schrad. [anon.] | 2442 |
| Rosaceae | Crataegus succulenta Schrad. | var. neofluvialis (Ashe) Palmer | Emmet. | Nasby woods, Estherville, 1 m. s. | . | Oak woods. Tree, 10'. Fruit red. Nutlets 2, pitted | Grant, Martin L. | 11678 | 8/20/1952 | 1952 | . | 1464 |
| Rosaceae | Crataegus succulenta Schrad. | var. occidentalis (Brit.) Palmer | Emmet. | Nasby Woods, Estherville, 1 m. s. | . | Oak woods. Nutlets 2, pitted, tree 10' | Grant, Martin L. | 11675 | 8/20/1952 | 1952 | . | 1465 |
| Rosaceae | Crataegus succulenta Schrad. | var. occidentalis (Brit.) Palmer | Lyon. | Gitchie Manitou | . | Oak grove, Sioux quartzite. St. 10, Nutlets 2-3, pitted, tree 7'; bark gray; fruit orange-red. | Grant, Martin L. | 11602 | 8/4/1952 | 1952 | . | 1466 |
| Rosaceae | Fragaria vesca L. | . | Dickinson. | Iowa Lakeside Laboratory | . | Next to Lodge | Bloethe, D., K. Cogan, & S. Pedersen | . | 8/3/1973 | 1973 | . | 5101 |
| Rosaceae | Fragaria vesca L. | var. americana Porter | Dickinson. | Beside canal bridge | . | Woods | Conard, H. S. | . | 6/25/1923 | 1923 | . | 742 |
| Rosaceae | Fragaria vesca L. | var. americana Porter | Dickinson. | South of Miller's Bay, West Lake Okoboji | . | Open woods | Cavanagh, Lucy M . | . | 5/27/1910 | 1910 | . | 743 |
| Rosaceae | Fragaria vesca L. | var. americana Porter | Dubuque. | North of Worthington | . | Ledges of cherty limestone | Shimek, Bohumil | . | 7/17/1928 | 1928 | . | 2194 |
| Rosaceae | Fragaria vesca L. | var. americana Porter | Winneshiek. | Decorah | . | . | Savage, T.E. | . | 05/29/1899 | 1899 | . | 4728 |
| Rosaceae | Fragaria virginiana Duchesne | . | Dickinson. | North of Miller's Bay, West Lake Okoboji | . | Prairie | Cavanagh, Lucy M . | . | 5/18/1910 | 1910 | . | 741 |
| Rosaceae | Fragaria virginiana Duchesne | . | Fayette. | Along R.R., Postville Junction | . | Prairie strip | Shimek, Bohumil | . | 5/21/1927 | 1927 | . | 2193 |
| Rosaceae | Fragaria virginiana Duchesne | . | Johnson. | Above Turkey Creek. Newport twnshp. Sec. 23, NW1/4. | . | Upland woods and north-facing bluff. | Thorne, Robert F. | 13981 | 5/31/1954 | 1954 | . | 4471 |
| Rosaceae | Fragaria virginiana Duchesne | . | Johnson. | East of Cemetery, Iowa City. East Lucas twnshp. | . | Pastured slope | Thorne, Robert F. | 15787 | 5/13/1955 | 1955 | . | 4472 |
| Rosaceae | Fragaria virginiana Duchesne | var. illinoensis (Prince) Gray | Dickinson. | Near Miller's Bay Hotel, West Okoboji Lake | . | Woods | Shimek, Bohumil | . | 6/22/1912 | 1912 | . | 5250 |
| Rosaceae | Geum aleppicum Jacq. | var. strictum (Ait.) Fern. | Cerro Gordo. | Mason City | . | . | Shimek, Bohumil | . | 07/07/1896 | 1896 | Orig. i.d.: Geum strictum Ait. Annot.: Geum aleppicum var. strictum (Ait.) Fernald [Rhodora 37. 294 (1935)], W.A.A., 1939 | 4729 |
| Rosaceae | Geum aleppicum Jacq. | var. strictum (Ait.) Fern. | Dickinson. | 3 m. SW of Lakeside Lab. | . | Low ground near Little Sioux River | Conard, H. S. | . | 6/28/1923 | 1923 | Orig. i.d.: Geum strictum Ait. Annot.: G. aleppicum Jacqu. var. strictum (Ait.) Fern., L. Eilers, 08-1980 | 746 |
| Rosaceae | Geum aleppicum Jacq. | var. strictum (Ait.) Fern. | Dickinson. | South of Arend's Kettlehole. Sec. 33, SE-SW. | T99N_R37W_Sec33 | Low pasture | Grant, Martin L. | 13981 | 7/17/1959 | 1959 | . | 3946 |
| Rosaceae | Geum canadense Jacq. | . | Dickinson. | 2 miles west of Milford, along Little Sioux River | . | Upland woods | Severe, Doris | 25 | 7/25/1957 | 1957 | . | 4132 |
| Rosaceae | Geum canadense Jacq. | . | Dickinson. | 3 m. SW of Lakeside Lab. | . | Woods above hanging bog. | Conard, H. S. | . | 7/7/1923 | 1923 | . | 744 |
| Rosaceae | Geum canadense Jacq. | . | Dickinson. | Along Emerson's Bay, West Lake Okoboji | . | Woods | Shimek, Bohumil | . | 8/4/1910 | 1910 | . | 745 |
| Rosaceae | Geum canadense Jacq. | . | Dickinson. | East shore of West Okoboji Lake | T99N_R36W_Sec18 | Dense woods, Maple woods | Naffziger, Joyce | 64 | 8/11/1961 | 1961 | . | 5327 |
| Rosaceae | Geum canadense Jacq. | . | Dickinson. | East shore of West Okoboji Lake | T99N_R36W_Sec30 | Dense woods, Basswood woods | Naffziger, Joyce | 73 | 8/11/1961 | 1961 | . | 5330 |
| Rosaceae | Geum canadense Jacq. | . | Dickinson. | East shore of West Okoboji Lake | T99N_R37W_Sec12 | Open woods, Oak woods. | Naffziger, Joyce | 26 | 8/4/1961 | 1961 | . | 5331 |
| Rosaceae | Geum canadense Jacq. | . | Dickinson. | Iowa Lakeside Laboratory | . | Acer negundo-Quercus macrocarpa woodland. Fls. white, common in woody areas | Bloethe, D., K. Cogan, & S. Pedersen | . | 7/12/1973 | 1973 | . | 5140 |
| Rosaceae | Geum canadense Jacq. | . | Dickinson. | Pocahontas Point, West Okoboji Lake | . | Woods | Shimek, Bohumil | . | 7/16/1918 | 1918 | Orig. i.d.: Geum virginianum L. Annot.: G. canadense Jacq., Robert F. Thorne, 1955 | 5249 |
| Rosaceae | Geum canadense Jacq. | . | Dickinson. | Spirit Lake | . | . | Shimek, Bohumil | . | 08/01/1896 | 1896 | Original i.d.: Geum canadense Jacq. = G. album J.F. Gmel. | 5248 |
| Rosaceae | Geum canadense Jacq. | . | Dubuque. | Pine Hollow, northwest of Luxemburg | . | Rocky slopes and ledges | Shimek, Bohumil | . | 8/15/1929 | 1929 | . | 2195 |
| Rosaceae | Geum canadense Jacq. | . | Emmet. | . | . | . | Cratty, R.I. | . | 07/01/1891 | 1891 | Original i.d.: Geum canadense Jacq. = G. album J.F. Gmel. | 4730 |
| Rosaceae | Geum canadense Jacq. | . | Johnson. | . | . | . | Hitchcock, A. S. | . | . | . | Original i.d.: Geum canadense Jacq. = G. album J.F. Gmel. [No date of collection given]. | 4131 |
| Rosaceae | Geum canadense Jacq. | . | Muscatine. | Near Muscatine | . | Upland woods | Shimek, Bohumil | . | 07/24/1895 | 1895 | Robert A. Davidson, 1956 | 4731 |
| Rosaceae | Geum triflorum Pursh | . | Dickinson. | Cayler Prairie. Sec. 17, NW1/4. | T99N_R37W_Sec17 | High Prairie. Three-flowered avens | Grant, Martin L. | 14232 | 6/20/1960 | 1960 | . | 4002 |
| Rosaceae | Geum triflorum Pursh | . | Dickinson. | Cayler Prairie | T99N_R37W_Sec17 | High prairie. Avens | Grant, Martin L. | 12965 | 5/14/1955 | 1955 | . | 3899 |
| Rosaceae | Geum triflorum Pursh | . | Howard. | Hayden Prairie. Sec. 33, NE1/4. | T100N_R13W_Sec33 | . | Thorne, Robert F. | 18628 | 7/2/1957 | 1957 | . | 4584 |
| Rosaceae | Malus ioensis (Wood) Brit. | . | . | East of Cemetery, Iowa City | . | Woods | Shimek, Bohumil | . | 5/18/1913 | 1913 | Orig. i.d.: Pyrus ioensis (Wood) Bail. Annot.: = Malus ioensis (Wood) Brit., D.R. 08-1993 | 2203 |
| Rosaceae | Malus ioensis (Wood) Brit. | . | Dickinson. | Iowa Lakeside Laboratory | . | Open grassy area with mixed forbs. DBH 17 cm. | Bloethe, D., K. Cogan, & S. Pedersen | . | 7/26/1973 | 1973 | Orig. i.d.: Pyrus malus L. Annot.: = Malus ioensis (Wood) Brit. [ D.R.] | 5098 |
| Rosaceae | Malus ioensis (Wood) Brit. | . | Dickinson. | Spirit Lake | . | Cultivated tree about 10 feet tall, dbh about 2 inches | Jordan, W.E. | . | 7/6/1957 | 1957 | Orig. i.d.: Pyrus malus L. Annot.: = Malus sylvestris (L.) P. Miller, D.R., 08-1993 | 4142 |
| Rosaceae | Malus ioensis (Wood) Brit. | . | Johnson. | East part of Cemetery, Iowa City | . | Clearing - 1st season after cutting. | Shimek, Bohumil | . | 5/18/1916 | 1916 | Orig. i.d.: Pyrus ioensis (Wood) Bail. Annot.: = Malus ioensis (Wood) Brit., D.R., 08-1993 | 4743 |
| Rosaceae | Physocarpus opulifolius (L.) Maxim. | var. intermedius (Rydb.) B.L. Rob. | Clayton. | St. Peter sandstone bluff at Giard School | . | . | Shimek, Bohumil | . | 6/23/1929 | 1929 | . | 2196 |
| Rosaceae | Physocarpus opulifolius (L.) Maxim. | . | Delaware. | . | . | . | Cameron, J.E. | . | 09/21/1897 | 1897 | . | 4732 |
| Rosaceae | Physocarpus opulifolius (L.) Maxim. | . | Dubuque. | . | . | . | Anderson, John A. | . | 6/1/1900 | 1900 | . | 4733 |
| Rosaceae | Physocarpus opulifolius (L.) Maxim. | . | Johnson. | Willow swamp. Cedar twnshp. Sec. 27, NW 1/4. | . | Shrub | Thorne, Robert F. | 15933 | 5/21/1955 | 1955 | . | 4473 |
| Rosaceae | Potentilla anserina L. | . | Dickinson. | Silver Lake. Sec. 32, SW-NW. | T100N_R38W_Sec32 | Roadside. Petals 10mm. long, bright yellow | Grant, Martin L. | 14385 | 7/13/1960 | 1960 | Iowa Nat. Areas Inventory, W.P., 1983-08-06 | 4031 |
| Rosaceae | Potentilla argentea L. | . | Johnson. | City Park, Iowa City | . | . | Thorne, Robert F. | . | 5/24/1957 | 1957 | . | 4474 |
| Rosaceae | Potentilla arguta Pursh | . | . | Along R.R. east of Iowa City | . | Prairie | Shimek, Bohumil | . | 7/10/1913 | 1913 | . | 2198 |
| Rosaceae | Potentilla arguta Pursh | . | Bremer. | NW corner of Bremer County | . | Prairie | Shimek, Bohumil | . | 9/4/1926 | 1926 | . | 2197 |
| Rosaceae | Potentilla arguta Pursh | . | Cerro Gordo. | Hackberry Grove | . | . | Shimek, Bohumil | . | 07/02/1896 | 1896 | . | 4734 |
| Rosaceae | Potentilla arguta Pursh | . | Dickinson. | Along R.R. north of Milford | . | Prairie | Shimek, Bohumil | . | 9/13/1921 | 1921 | . | 1677 |
| Rosaceae | Potentilla arguta Pursh | . | Dickinson. | Floete Prairie | . | Middle to high prairie | Zylstra, Connie | . | 8/9/1958 | 1958 | . | 4133 |
| Rosaceae | Potentilla arguta Pursh | . | Dickinson. | Montgomery. Sec. 28, NW-NW. | T100N_R36W_Sec28 | Prairie | Grant, Martin L. | 8734 | 7/1/1948 | 1948 | . | 747 |
| Rosaceae | Potentilla arguta Pursh | . | Dickinson. | Terrace Park | . | Sand | Shimek, Bohumil | . | 6/24/1912 | 1912 | . | 748 |
| Rosaceae | Potentilla arguta Pursh | . | Emmet. | . | . | . | Cratty, R.I. | . | . | . | [No date of collection given] | 4736 |
| Rosaceae | Potentilla arguta Pursh | . | Emmet. | Anderson Prairie State Preserve. | . | Dry prairie hill slope. | Elliott, Mike, Ben Mullarkey, Leanne Martin | . | . | . | . | 5634 |
| Rosaceae | Potentilla arguta Pursh | . | Hancock. | Near Forest City | . | . | Shimek, Bohumil | . | 07/18/1896 | 1896 | . | 4737 |
| Rosaceae | Potentilla arguta Pursh | . | Lyon. | Rock Rapids | . | . | Shimek, Bohumil | . | 08/04/1896 | 1896 | . | 4735 |
| Rosaceae | Potentilla canadensis L. | . | Iowa. | South of Amana | . | Alluvial prairie | Shimek, Bohumil | . | 7/10/1909 | 1909 | P. simplex [anon.] | 2200 |
| Rosaceae | Potentilla canadensis L. | . | Johnson. | Iowa City | . | . | . | . | 5/24/1907 | 1907 | Annot.: = P. simplex [anon.] Collector's name is faded out. | 4141 |
| Rosaceae | Potentilla canadensis L. | . | Muscatine. | Along RR., south of Summit, on Illinoian drift | . | Native flat prairie | Shimek, Bohumil | . | 5/26/1923 | 1923 | Potentilla simplex [anon.] | 2199 |
| Rosaceae | Potentilla fruticosa L. | . | Allamakee. | . | . | . | Fitzpatrick, T.J. | . | 06/25/1895 | 1895 | Iowa Nat. Areas Inventory William Pusateri 1983-08-06 | 4738 |
| Rosaceae | Potentilla norvegica L. | . | Cerro Gordo. | Mason City | . | . | Shimek, Bohumil | . | 07/07/1896 | 1896 | Original i.d.: Potentilla monspeliensis var. norvegica (L.) Rydb. = P. norvegica L. Annotation: P. norvegica L., L. Eilers, 08-1980 | 4740 |
| Rosaceae | Potentilla norvegica L. | . | Dickinson. | Arnold's Park | . | Border of woods | Shimek, Bohumil | . | 8/1/1901 | 1901 | Orig. i.d.: Potentilla monspeliensis L. Annot.: P. norvegica L. [anon.] | 1678 |
| Rosaceae | Potentilla norvegica L. | . | Dickinson. | Cayler Prairie. Lakeville twnshp. Sec. 17, NW 1/4. | . | Prairie swales and marshes, infrequent | Thorne, Robert F. | 16040 | 6/19/1955 | 1955 | . | 4412 |
| Rosaceae | Potentilla norvegica L. | . | Dickinson. | Floete Prairie | . | Middle to high prairie | Zylstra, Connie | . | 7/30/1958 | 1958 | . | 4134 |
| Rosaceae | Potentilla norvegica L. | . | Dickinson. | Iowa Lakeside Laboratory | . | Open grassy area. Fls. yellow, plant hirsute, common in woods | Bloethe, D., K. Cogan, & S. Pedersen | . | 7/11/1973 | 1973 | . | 5102 |
| Rosaceae | Potentilla norvegica L. | . | Dickinson. | Lakeside Lab. campus | . | . | Conard, H. S. | . | 6/30/1923 | 1923 | Orig. i.d.: Potentilla monspeliensis L. Annot.: = P. norvegica L. [anon.] | 751 |
| Rosaceae | Potentilla norvegica L. | . | Dickinson. | Terrace Park, West Lake Okoboji | . | Sandy prairie | Shimek, Bohumil | . | 8/9/1910 | 1910 | Orig. i.d.: Potentilla monspeliensis L. Annot.: = P. norvegica L. [anon.] | 749 |
| Rosaceae | Potentilla norvegica L. | . | Dickinson. | West of Lookout | . | Prairie | Shimek, Bohumil | . | 8/10/1911 | 1911 | Orig. i.d.: Potentilla monspeliensis L. Annot.: = P. norvegica L. [anon.] | 750 |
| Rosaceae | Potentilla norvegica L. | . | Johnson. | . | . | . | Shimek, Bohumil | . | 07/01/1895 | 1896 | Original i.d.: Potentilla monspeliensis var. norvegica (L.) Rydb. = P. norvegica L. Annotation: = P. norvegica [anon.] | 4135 |
| Rosaceae | Potentilla norvegica L. | . | Winnebago. | Forest City | . | . | Shimek, Bohumil | . | 09/09/1895 | 1895 | Original i.d.: Potentilla monspeliensis var. norvegica (L.) Rydb. = P. norvegica L. Annotation: P. norvegica L., L. Eilers, 08-1980 | 4739 |
| Rosaceae | Potentilla palustris (L.) Scop. | . | Dickinson. | Southwest side of Silver lake | . | Bog | Shimek, Bohumil | . | 8/25/1934 | 1934 | Iowa Nat. Areas Inventory William Pusateri 1983-08-06. P. anserina L. [anon.] | 5265 |
| Rosaceae | Potentilla palustris (L.) Scop. | . | Hancock. | Dead Man's Lake | . | Marsh | Brown, Joseph H. | . | 8/5/1955 | 1955 | . | 4136 |
| Rosaceae | Potentilla palustris (L.) Scop. | . | Hancock. | Pilot Knob State Park, Dead Man's Lake | T97N_R23W_Sec4 | On Sphagnum island adj. to S. shore of lake. | Begres, F. M. | . | 7/9/1968 | 1968 | . | 5566 |
| Rosaceae | Potentilla palustris (L.) Scop. | . | Hancock. | Pilot Knob State Park, Deadman's Lake. Ellington twnshp. | . | Bog mat | Thorne, Robert F. | 14377 | 7/8/1954 | 1954 | . | 4573 |
| Rosaceae | Potentilla palustris (L.) Scop. | . | Hancock. | Pilot Knob State Park, Deadman's Lake | . | Abundant on mat | Thorne, Robert F. | 15943 | 6/12/1955 | 1955 | . | 15943 |
| Rosaceae | Potentilla palustris (L.) Scop. | . | Hancock. | Pilot Knob State park, Deadman's Lake. Ellington twnshp. | . | Bog mat | Thorne, Robert F. | 17716 | 6/17/1956 | 1956 | . | 4575 |
| Rosaceae | Potentilla palustris (L.) Scop. | . | Hancock. | Pilot Knob, Dead Man's Lake | . | Floating sphagnum mat | Grant, Martin L. | 12309 | 7/8/1954 | 1954 | . | 1939 |
| Rosaceae | Potentilla paradoxa Nutt. | . | Buena Vista. | On the south shore of Storm Lake | . | . | Jordan, W.E. | . | 6/29/1957 | 1957 | !, Martin L. Grant, 1959 | 4138 |
| Rosaceae | Potentilla paradoxa Nutt. | . | Dickinson. | Gull Point, West Lake Okoboji | . | Sandy beach. Co yellow; perennial | Grant, Martin L. | 13910 | 7/1/1959 | 1959 | . | 3923 |
| Rosaceae | Potentilla paradoxa Nutt. | . | Dickinson. | Lakeside Lab., Lake shore, campus | . | . | Conard, H. S. | . | 7/4/1923 | 1923 | . | 754 |
| Rosaceae | Potentilla paradoxa Nutt. | . | Dickinson. | North end of canal, south of Miller's Bay, West Okoboji Lake | . | Sandy beach | Shimek, Bohumil | . | 7/7/1916 | 1916 | . | 1679 |
| Rosaceae | Potentilla paradoxa Nutt. | . | Dickinson. | North side of Miller's Bay, West Lake Okoboji | . | Beaches | Shimek, Bohumil | . | 8/1/1910 | 1910 | . | 753 |
| Rosaceae | Potentilla paradoxa Nutt. | . | Dickinson. | Spirit Lake, along NE edge. Sec. 15, SE 1/4. | T100N_R36W_Sec15 | On rocky shoreline | Adams, Doyle D. | . | 7/28/1958 | 1958 | !, Martin L. Grant, 1959 | 4139 |
| Rosaceae | Potentilla paradoxa Nutt. | . | Dickinson. | West Okoboji Lake shore near Beck's Canal | . | Moist soil on lake shore | Zylstra, Connie | . | 7/14/1958 | 1958 | !, Martin L. Grant, 1959 | 4137 |
| Rosaceae | Potentilla paradoxa Nutt. | . | Woodbury. | Sioux City | . | . | Hitchcock, A. S. | . | . | . | Original i.d.: Potentilla paradoxa Nutt. = P. supina. [No date of collection given]. County not listed by collector, but location is distinct. | 4741 |
| Rosaceae | Potentilla pensylvanica L. | . | Lyon. | 2 miles east of Gitchie Manitou. Sec. 7, NW-SW. | T100N_R48W_Sec7 | Pasture. Co yellow | Grant, Martin L. | 1937 | 6/26/1954 | 1954 | Orig. i.d.: Potentilla missurica Hornem. Annot.: P. pensylvanica L., L.Eilers, 08-1980 | 1937 |
| Rosaceae | Potentilla pensylvanica L. | . | Lyon. | About 2 miles east of Gitchie Manitou State Park. Sioux twnshp. Sec. 7, SW 1/4. | . | Sioux quartzite outcrops and small creek. | Thorne, Robert F. | 14248 | 6/29/1954 | 1954 | Orig. i.d.: Potentilla sp. Annot.: P. missurica Hornem, det. Martin L. Grant, 1966; P. pensylvanica L., L. Eilers, 08-1980; Iowa Nat. Areas Inventory William Pusateri 1983-08-06 | 4535 |
| Rosaceae | Potentilla recta L. | . | Dickinson. | DeWall gravel pit 3.4 miles south of Milford, 3 miles west, and 0.8 mile south. | . | . | Jordan, W.E. | . | 7/5/1957 | 1957 | . | 4140 |
| Rosaceae | Potentilla recta L. | . | Dickinson. | Silver Lake. Sec. 33, SE-SW. | T100N_R38W_Sec33 | Roadside. Erect, 6 dm. tall; petals 12mm. long, pale lemon yellow, emarginate | Grant, Martin L. | 14384 | 7/13/1960 | 1960 | . | 4030 |
| Rosaceae | Potentilla rivalis Nutt. | . | Dickinson. | Crescent Beach, West Lake Okoboji. Sec. 25, SW-NW. | T99N_R37W_Sec25 | Pond margin. Ca 3.6mm., Co 1.8mm., upper leaves 3-foliolate | Grant, Martin L. | 13983 | 7/28/1959 | 1959 | Original i.d.: Potentilla rivalis Nutt. prob. var. millegrana (Engelm.) S. Wats. | 3948 |
| Rosaceae | Potentilla rivalis Nutt. | . | Dickinson. | Emerson's Bay, near Crescent Beach | . | Marsh borders | Anderson, W. A. | 2002 | 6/30/1942 | 1942 | Original i.d.: Potentilla rivalis var. pentandra (Engelm.) Wats. | 755 |
| Rosaceae | Potentilla rivalis Nutt. | . | Dickinson. | Floete Prairie. Sec. 26, W1/2. | T99N_R37W_Sec26 | . | Thorne, Robert F. | 14548 | 8/6/1954 | 1954 | . | 4413 |
| Rosaceae | Potentilla rivalis Nutt. | var. millegrana (Engelm.) S. Wats. | Dickinson. | South of Miller's Bay, West Lake Okoboji | . | Swamp | Shimek, Bohumil | . | 8/4/1910 | 1910 | Orig. i.d.: Potentilla nicollettii (S. Wats.) Sheldon. Annot.: This is doubtful form. BS; P. rivalis Nutt. var. millegrana (Engelm.) S. Wats., Martin L. Grant, 1959. | 752 |
| Rosaceae | Prunus americana Marsh. | . | Dickinson. | East shore of West Okoboji Lake | T99N_R37W_Sec12 | Open woods, Oak woods. | Naffziger, Joyce | 10 | 8/4/1961 | 1961 | Robert F. Thorne 1961 | 5329 |
| Rosaceae | Prunus americana Marsh. | . | Dickinson. | Iowa Lakeside Laboratory | . | Acer negundo-Quercus macrocarpa woodland, frequent on wood edge. dbh 20cm. | Bloethe, D., K. Cogan, & S. Pedersen | . | 7/12/1973 | 1973 | . | 5100 |
| Rosaceae | Prunus americana Marsh. | . | Dickinson. | Miller's Bay, West Lake Okoboji | . | Woods | Shimek, Bohumil | . | 8/20/1909 | 1909 | . | 771 |
| Rosaceae | Prunus americana Marsh. | . | Dickinson. | One mile west of Spirit Lake | . | On bank at edge of marshy ground at Jemmerson Slough. Small tree, 6 ft. tall | Cooperrider, Tom S. | 9484 | 6/17/1965 | 1965 | . | 5305 |
| Rosaceae | Prunus americana Marsh. | . | Dickinson. | Woods south of Lakeside Laboratory, West Okoboji Lake | . | . | Shimek, Bohumil | . | 8/4/1910 | 1910 | . | 5266 |
| Rosaceae | Prunus pennsylvanica L. f. | . | Cerro Gordo. | SW side of Buffalo Slough, Mason City | . | Wooded bluffs | Shimek, Bohumil | . | 9/11/1925 | 1925 | County not listed by collector, but location is distinct. | 2201 |
| Rosaceae | Prunus pennsylvanica L. f. | . | Winneshiek. | Hesper | . | Woods | Shimek, Bohumil | . | 8/18/1903 | 1903 | . | 4742 |
| Rosaceae | Prunus pumila L. | . | Lyon. | Gitchie Manitou State Park. Sec. 11, SW1/4. | T100N_R49W_Sec11 | Crevice in Sioux quartzite outcrop | Thorne, Robert F. | 14617 | 8/12/1954 | 1954 | Annot.: Iowa Nat. Areas Inventory Jeanne N. Bates 1983-08-06; !, P. besseyi Bailey, J. Novacele Bates, 08-06-1983 | 4536 |
| Rosaceae | Prunus pumila L. | var. besseyi (Bail.) Gleason | Lyon. | Gitchie Manitou | . | Quartzite prairie. Shrub, 1' high | Grant, Martin L. | 12497 | 8/12/1954 | 1954 | Annot.: Iowa Nat. Areas Inventory Jeanne N. Bates 1983-08-06; !, P. besseyi Bailey, J. Novacele Bates, 1983 | 2504 |
| Rosaceae | Prunus serotina Ehrh. | . | Dickinson. | Beck Canal, Lake Okoboji. Sec. 24, SW-SW. | T99N_R37W_Sec24 | Woods | Grant, Martin L. | 8719 | 6/25/1948 | 1948 | . | 772 |
| Rosaceae | Prunus serotina Ehrh. | . | Hancock. | Pilot Knob State Park, Dead Man's Lake | . | Sphagnum bog. Shrub, 1 1/2' tall, without flowers | Grant, Martin L. | 12534 | 8/21/1954 | 1954 | Original i.d.: Pyrus melanocarpa (Michx.) Willd. = Aronia nigra Brit.; Prunus serotina Ehrh. L. Eilers, 08-1980 | 4143 |
| Rosaceae | Prunus serotina Ehrh. | . | Hancock. | Pilot Knob State Park, Deadman's Lake. Ellington twnshp. | . | Floating mat in bog | Thorne, Robert F. | 17718 | 6/17/1956 | 1956 | . | 4576 |
| Rosaceae | Prunus serotina Ehrh. | . | Johnson. | East of Cemetery, Iowa City. East Lucas twnshp. | . | Woods, thickets, open slopes, and marshy places. Young sapling | Thorne, Robert F. | 15778 | 5/13/1955 | 1955 | . | 4476 |
| Rosaceae | Prunus serotina Ehrh. | . | Johnson. | McBride State Park, Big Grove Twp. | . | Small tree | Thorne, Robert F. | 14095 | 5/27/1954 | 1954 | . | 4475 |
| Rosaceae | Prunus virginiana L. | . | Cerro Gordo. | SW side of Buffalo Slough, Mason City | . | Wooded bluffs | Shimek, Bohumil | . | 5/23/1920 | 1920 | . | 2202 |
| Rosaceae | Prunus virginiana L. | . | Dickinson. | Iowa Lakeside Laboratory | . | Lawn, common. Berries red, shrub | Bloethe, D., K. Cogan, & S. Pedersen | . | 7/13/1973 | 1973 | . | 5099 |
| Rosaceae | Prunus virginiana L. | . | Dickinson. | Lakeside Lab. campus | . | . | Conard, H. S. | . | 7/4/1923 | 1923 | . | 774 |
| Rosaceae | Prunus virginiana L. | . | Dickinson. | Lakeside Lab. campus | . | Woods. Tree 20' | Grant, Martin L. | 8804 | 7/8/1948 | 1948 | . | 776 |
| Rosaceae | Prunus virginiana L. | . | Dickinson. | South of Lakeside Laboratory, West Okoboji Lake | . | Wooded banks | Shimek, Bohumil | . | 5/1/1912 | 1912 | . | 773 |
| Rosaceae | Prunus virginiana L. | . | Dickinson. | South of Pillsbury's Point | . | Wooded banks | Shimek, Bohumil | . | 7/31/1913 | 1913 | . | 775 |
| Rosaceae | Rosa arkansana Porter | . | Dickinson. | Cayler Prairie. Lakeville twnshp. Sec. 17, NW 1/4. | . | Dry to mesic prairie, common. | Thorne, Robert F. | 15994 | 6/17/1955 | 1955 | . | 4414 |
| Rosaceae | Rosa arkansana Porter | . | Dickinson. | Floete Prairie | . | Middle to high prairie | Zylstra, Connie | . | 7/24/1958 | 1958 | . | 4156 |
| Rosaceae | Rosa arkansana Porter | . | Dickinson. | Sec. 5, SE1/4. | T99N_R37W_Sec5 | Cultivated field | Byerly, Dale M. | . | 7/25/1957 | 1957 | . | 4155 |
| Rosaceae | Rosa arkansana Porter | var. suffulta (Greene) Cockerel | Emmet. | Anderson Prairie State Preserve. | . | Dry prairie hill slope. | Elliott, Mike, Ben Mullarkey, Leanne Martin | . | . | . | . | 5627 |
| Rosaceae | Rosa arkansana Porter | var. suffulta (Greene) Cockerel | Emmet. | Anderson Prairie State Preserve. | . | Dry prairie hilltop. | Hayes, Jessica , Jon Crawford, Gina Rutenbeck | . | 7/6/2001 | 2001 | . | 5639 |
| Rosaceae | Rosa blanda Ait. | . | Dickinson. | Beck's Spring, West Okoboji Lake | . | Woods | Shimek, Bohumil | . | 6/22/1912 | 1912 | As determined, L. Guldner, 1954 | 5246 |
| Rosaceae | Rosa blanda Ait. | . | Dickinson. | Lakeside Lab., Miller's Bay, West lake Okoboji | . | Upland prairie. Population #5 | Gross, Dennis | . | 8/11/1969 | 1969 | . | 5299 |
| Rosaceae | Rosa blanda Ait. | . | Dickinson. | Lakeside Laboratory, Miller's Bay, West Lake Okoboji | . | Upland prairie. Plant with rhizome | Gross, Dennis | . | 8/11/1969 | 1969 | . | 5300 |
| Rosaceae | Rosa blanda Ait. | . | Dickinson. | Lakeside Laboratory, Miller's Bay, West Lake Okoboji | . | Upland prairie. Population #5 | Gross, Dennis | . | 8/11/1969 | 1969 | . | 5298 |
| Rosaceae | Rosa blanda Ait. | . | Dickinson. | Milford Woods, 2 miles west of Milford. Okoboji twnshp. | T98N_R37W_Sec10 | . | Thorne, Robert F. | 19558 | 6/23/1958 | 1958 | Iowa Nat. Areas Inventory Jeanne N. Bates 1983-08-06. !, R. woodsii Lindl. J. Novacele Bates, 08-06-1983 | 4415 |
| Rosaceae | Rosa blanda Ait. | . | Dickinson. | Miller's Bay, West Lake Okoboji | . | Open woods | Shimek, Bohumil | . | 8/20/1909 | 1909 | . | 756 |
| Rosaceae | Rosa blanda Ait. | . | Dickinson. | Prairie - lower sheltered inner slope of rim around sunken Kettlehole, NW of Milford. Sec. 33, SW 1/4. | T99N_R37W_Sec33 | . | Shimek, Bohumil | . | 9/3/1930 | 1930 | Orig. i.d.: Rosa pratincola Greene. Annot.: R. blanda Ait., Martin L. Grant, 1959 | 4144 |
| Rosaceae | Rosa blanda Ait. | . | Dickinson. | Spirit Lake | . | Sandy beach | Anderson, W. A. | . | 8/20/1935 | 1935 | As determined, L. Guldner, 1954. ? R. woodsii Lindl. JNB 1983 | 5217 |
| Rosaceae | Rosa blanda Ait. | . | Emmet. | Fort Defiance State Park. Estherville twnshp. Sec. 16. | . | Shrub at edge of upland woods | Thorne, Robert F. | 18520 | 6/26/1957 | 1957 | Iowa Nat. Areas Inventory Jeanne N. Bates 1983-08-06. ! R. woodsii Lindl. J. Novacele Bates, 08-06-1983 | 4505 |
| Rosaceae | Rosa blanda Ait. | . | Iowa. | South of Amana | . | Border of alluvial woods | Shimek, Bohumil | . | 7/4/1903 | 1903 | . | 2204 |
| Rosaceae | Rosa blanda Ait. | . | Johnson. | . | . | . | Shimek, Bohumil | . | 06/01/1896 | 1896 | Rosa blanda Ait, L. Guldner 1954 | 4145 |
| Rosaceae | Rosa carolina L. | . | Dickinson. | Iowa Lakeside Laboratory | . | Open area, weedy grasses and forbs. Fls pink | Bloethe, D., K. Cogan, & S. Pedersen | . | 7/12/1973 | 1973 | . | 5097 |
| Rosaceae | Rosa carolina L. | . | Dickinson. | Lakeside Laboratory, Miller's Bay, West Lake Okoboji | . | Upland prairie. Population #1 | Gross, Dennis | . | 8/4/1969 | 1969 | . | 5290 |
| Rosaceae | Rosa carolina L. | . | Dickinson. | Lakeside Laboratory, Miller's Bay, West Lake Okoboji | . | Upland prairie. Population #1 | Gross, Dennis | . | 8/4/1969 | 1969 | Iowa Nat. Areas Inventory Jeanne N. Bates 1983-08-06. ! R. woodsii Lindl., J. Novacele Bates, 08-06-1983 | 5291 |
| Rosaceae | Rosa carolina L. | . | Dickinson. | Lakeside Laboratory, Miller's Bay, West Lake Okoboji | . | Upland prairie. Population #3 | Gross, Dennis | . | 8/6/1969 | 1969 | . | 5294 |
| Rosaceae | Rosa carolina L. | . | Dickinson. | Lakeside Laboratory, Miller's Bay, West Lake Okoboji | . | Upland prairie. Population #3 | Gross, Dennis | . | 8/6/1969 | 1969 | . | 5295 |
| Rosaceae | Rosa carolina L. | . | Johnson. | Along C.R.& I.P. RR., 2 miles South of Iowa City | . | Remnant of prairie | Thorne, Robert F. | 18318 | 9/30/1956 | 1956 | . | 4477 |
| Rosaceae | Rosa humilis Marshall | . | Johnson. | . | . | . | Hitchcock, A. S. | . | . | . | Annot.: = R. carolina L., L. Guldner, 10-1954; ? R. woodsii, JNB. [No date of collection given]. | 4147 |
| Rosaceae | Rosa multiflora Thunb. | . | Dickinson. | Swan Lake. Sec. 23, SW1/4. | T100N_R35W_Sec23 | Hedge planting | Grant, Martin L. | 14031 | 8/10/1959 | 1959 | . | 3993 |
| Rosaceae | Rosa pratincola Greene | . | Cerro Gordo. | Southwest side of Buffalo Slough, Mason City | . | Open bur-oak woods | Shimek, Bohumil | . | 5/25/1921 | 1921 | Annot.: R. arkansana Porter, L. Eilers, 08-1980; Iowa Nat. Areas Inventory Jeanne N. Bates 1983-08-06; ! Rosa woodsii Lindl., J. Novacele Bates, 08-06-1983. County not listed by collector, but location is distinct. | 2205 |
| Rosaceae | Rosa pratincola Greene | . | Dickinson. | Along E. Okoboji Lake, Spirit Lake | . | Open places | Shimek, Bohumil | . | 08/01/1896 | 1896 | Annot.: Rosa suffulta Greene, L J Auldner [?] 1954; R. arkansana Porter [anon.] | 5241 |
| Rosaceae | Rosa pratincola Greene | . | Dickinson. | Along road east of bridge, NW of Milford. Sec. 33, South side. | T99N_R37W_Sec33 | Prairie | Shimek, Bohumil | . | 6/26/1930 | 1930 | R. arkansana Porter [anon.] | 4154 |
| Rosaceae | Rosa pratincola Greene | . | Dickinson. | East of Montgomery | . | Prairie along R.R. | Shimek, Bohumil | . | 6/18/1918 | 1918 | Annot.: Rosa suffulta Greene, L. Guldner 1954; R. arkansana Porter [anon.] | 5240 |
| Rosaceae | Rosa pratincola Greene | . | Dickinson. | Lakeside Lab. campus | . | . | Conard, H. S. | . | 7/4/1923 | 1923 | R. arkansana Porter [anon.] | 758 |
| Rosaceae | Rosa pratincola Greene | . | Dickinson. | Lakeside Lab., West Okoboji Lake | . | Upland prairie | Shimek, Bohumil | . | 8/3/1909 | 1909 | R. arkansana Porter [anon.] | 4149 |
| Rosaceae | Rosa pratincola Greene | . | Dickinson. | Lakeside Laboratory, West Okoboji Lake | . | Upland prairie. White flower | Ensign, Evelyn | . | 6/22/1918 | 1918 | Regarding original det.: Fide E. Ensign. R. arkansana Porter [anon.] | 4153 |
| Rosaceae | Rosa pratincola Greene | . | Dickinson. | North end of West Okoboji Lake | . | Sandy shore. | Shimek, Bohumil | . | 7/1/1912 | 1912 | R. arkansana Porter [anon.] | 4150 |
| Rosaceae | Rosa pratincola Greene | . | Dickinson. | Northeast of Lakeside Lab., West Okoboji Lake | . | Prairie. (Sepals spreading) | Ensign, Evelyn | . | 7/20/1918 | 1918 | Regarding original det.: Fide E. Ensign. R. arkansana Porter [anon.] | 4152 |
| Rosaceae | Rosa pratincola Greene | . | Dickinson. | SW of Miller's Bay, West Okoboji Lake | . | Upland prairie | Shimek, Bohumil | . | 8/1/1916 | 1916 | Fide E. Ensign [regarding Shimek det.]. R. arkansana Porter [anon.]. | 4151 |
| Rosaceae | Rosa pratincola Greene | . | Dickinson. | West Okoboji | . | . | Shimek, Bohumil | . | 7/1/1912 | 1912 | R. arkansana Porter [anon.] | 757 |
| Rosaceae | Rosa pratincola Greene | . | Dickinson. | West of West lake Okoboji | . | Prairie | Shimek, Bohumil | . | 08/04/1899 | 1899 | R. arkansana Porter [anon.] | 4148 |
| Rosaceae | Rosa pratincola Greene | . | Emmet. | Armstrong | . | Prairie | Shimek, Bohumil | . | 09/01/1895 | 1895 | Fide E. Ensign [regarding Shimek det.]. Rosa suffulta Greene, L.Guldner, 1954.R. arkansana Porter [anon.] | 4747 |
| Rosaceae | Rosa pratincola Greene | . | Muscatine. | Southwest of Muscatine | . | Sandy roadside | Shimek, Bohumil | . | 6/12/1911 | 1911 | Rosa carolina L., L. Guldner, 1954. As determined, Robert A. Davidson, 07-1956 | 4744 |
| Rosaceae | Rosa sp. | . | Iowa. | Northeast of Homestead | . | Woods | Shimek, Bohumil | . | 10/6/1923 | 1923 | Annot.: Rosa serrulata Raf?, L. Guldner, 1954. Leaflets partly gland-serrate ? [anon.] | 4746 |
| Rosaceae | Rosa suffulta Greene | . | Dickinson. | Lakeside Lab., Miller's Bay, West Lake Okoboji | . | Upland prairie. Population #2 | Gross, Dennis | . | 8/5/1969 | 1969 | Annot.: R. arkansana Porter [anon.] | 5292 |
| Rosaceae | Rosa suffulta Greene | . | Dickinson. | Lakeside Lab., Miller's Bay, West Lake Okoboji | . | Upland prairie. Population #2 | Gross, Dennis | . | 8/5/1969 | 1969 | Annot.: R. arkansana Porter [anon.] | 5293 |
| Rosaceae | Rosa virginiana Mill. | . | Johnson. | Iowa City, open place 1 mile north | . | . | Ensign, Evelyn | . | 9/18/1918 | 1918 | R. carolina [anon.] | 2206 |
| Rosaceae | Rosa virginiana Mill. | . | Johnson. | Turkey Creek | . | Prairie ridge | Shimek, Bohumil | . | 6/10/1909 | 1909 | Fide E. Ensign [regarding Shimek det.]. R. carolina [anon.]. | 4146 |
| Rosaceae | Rosa woodsii Lindl. | . | Dickinson. | Lakeside Laboratory, Miller's Bay, West Lake Okoboji | . | Upland prairie. Population #4 | Gross, Dennis | . | 8/10/1969 | 1969 | Orig. i.d.: Rosa fendleri Crep. Annot.: R. woodsii Lindl., L. Eilers, 08-1980. Iowa Nat. Areas Inventory Jeanne N. Bates 1983-08-06. !, J. Novacele Bates, 08-06-1983 | 5297 |
| Rosaceae | Rosa woodsii Lindl. | . | Dickinson. | Lakeside Laboratory, Miller's Bay, West Lake Okoboji | . | Upland prairie. Population #4 | Gross, Dennis | . | 8/10/1969 | 1969 | Orig. i.d.: Rosa fendleri Crep. Annot.: R. woodsii Lindl., L. Eilers, 08-1980; Iowa Nat. Areas Inventory Jeanne N. Bates 1983-08-06; !, J. Novacele Bates, 08-06-1983 | 5296 |
| Rosaceae | Rosa woodsii Lindl. | . | Dickinson. | Lakeside Laboratory, West Okoboji Lake | . | Wooded banks | Ensign, Evelyn | . | 7/26/1918 | 1918 | Regarding original det.: Fide E. Ensign. Iowa Nat. Areas Inventory Jeanne N. Bates 1983-08-06, ! | 1680 |
| Rosaceae | Rosa woodsii Lindl. | . | Harrison. | California Junction | . | . | Shimek, Bohumil | . | 5/19/1903 | 1903 | Annot.: Rosa macouna [??] It is not Rosa woodsii, sensu strictu [??] L. Guldner; Iowa Nat. Areas Inventory Jeanne N. Bates 1983-08-06; ! R. woodsii Lindl, J. Novacele Bates, 08-06-1983 | 4745 |
| Rosaceae | Rubus idaeus L. | var. aculeatissimus Regel & Tiling | Dickinson. | Back of Elmcrest | . | Woods | Conard, H. S. | . | 8/6/1923 | 1923 | . | 759 |
| Rosaceae | Rubus idaeus L. | var. aculeatissimus Regel & Tiling | Dickinson. | Garlock Slough. Sec. 35, SE-NE. | T99N_R37W_Sec35 | Near garden. Escape? Fruit red, firm, all canes erect. | Grant, Martin L. | 11564 | 7/24/1952 | 1952 | . | 1467 |
| Rosaceae | Rubus idaeus L. | var. aculeatissimus Regel & Tiling | Dickinson. | Iowa Lakeside Laboratory | . | Open grassy area. Vine, stem glaucous | Bloethe, D., K. Cogan, & S. Pedersen | . | 7/17/1973 | 1973 | R. occidentalis L. [anon.] | 5165 |
| Rosaceae | Rubus occidentalis L. | . | Dickinson. | East shore of West Okoboji Lake | T99N_R36W_Sec18 | Dense woods, Maple woods | Naffziger, Joyce | 55 | 8/11/1961 | 1961 | Robert F. Thorne, 1961 | 5328 |
| Rosaceae | Rubus occidentalis L. | . | Dickinson. | East shore of West Okoboji Lake | T99N_R36W_Sec30 | Dense woods, Basswood woods | Naffziger, Joyce | 85 | 8/11/1961 | 1961 | Robert F. Thorne, 1961 | 5326 |
| Rosaceae | Rubus occidentalis L. | . | Dickinson. | East shore of West Okoboji Lake | T99N_R37W_Sec12 | Open woods, Oak woods. | Naffziger, Joyce | 16 | 8/4/1961 | 1961 | Robert F. Thorne, 1961 | 5325 |
| Rosaceae | Rubus occidentalis L. | . | Dickinson. | South of Miller's Bay, West Lake Okoboji | . | Open places | Shimek, Bohumil | . | 8/19/1909 | 1909 | Rubus idaeus [anon.] | 761 |
| Rosaceae | Rubus occidentalis L. | . | Dickinson. | West of Elmcrest | . | Woods | Conard, H. S. | . | 6/25/1923 | 1923 | Rubus idaeus [anon.] | 760 |
| Rosaceae | Rubus pubescens Raf. | . | Dubuque. | White Pine Hollow State Forest, 3 miles NW of Luxemburg. Liberty twnshp. Sec. 6,7,8. | . | Low, ascending shrub sprawling over limestone talus on cold-air drainage on yew covered, north-facing bluff. | Thorne, Robert F. | 14047 | 5/15/1954 | 1954 | Iowa Nat. Areas Inventory William Pusateri 1983-08-06 | 4593 |
| Rosaceae | Rubus strigosus Michx. | . | Lee. | Keokuk | . | . | Shimek, Bohumil | . | 06/01/1897 | 1897 | Original i.d. of Rubus strigosus [lined out]. R. flagellans Willd., Robert F. Thorne, 1955. As determined, Robert A. Davidson, 07-1956 | 4748 |
| Rosaceae | Sorbus americana Marsh. | . | Dickinson. | Iowa Lakeside Laboratory | . | Lawn | Bloethe, D., K. Cogan, & S. Pedersen | . | 8/3/1973 | 1973 | S. aucuparia [?]. L. Eilers, 08-1980 | 5057 |
| Rosaceae | Sorbus aucuparia L. | . | Hancock. | Pilot Knob State Park. Ellington twnshp. | . | Small tree at edge of Deadman's Lake, probably an escape | Thorne, Robert F. | 14390 | 7/8/1954 | 1954 | Orig. i.d.: Pyrus aucuparia (L.) Gaertn. Annot.: = Sorbus aucuparia [?] [LJE] | 4577 |
| Rosaceae | Spiraea alba DuRoi | . | Clay. | Dewey's Pasture | T97N_R35W_Sec25 | Slough margin. Shrub 4' high | Grant, Martin L. | 8916 | 8/10/1948 | 1948 | . | 762 |
| Rosaceae | Spiraea alba DuRoi | . | Dickinson. | Montgomery prairie. Sec. 28, NW-NW. | T100N_R37W_Sec28 | Low prairie. Shrub, 12-18 inches tall; Co white | Grant, Martin L. | 14392 | 8/3/1960 | 1960 | . | 3915 |
| Rosaceae | Spiraea alba DuRoi | . | Dickinson. | Prairie and swale back of Hilltop Hacienda. Lakeville twnshp. Sec. 23. | . | Low shrub on moist ground along fence | Thorne, Robert F. | 14447 | 7/28/1954 | 1954 | . | 4416 |
| Rosaceae | Spiraea alba DuRoi | . | Dickinson. | Sec. 32, SW1/4. | T99N_R36W_Sec32 | Prairie swale | Thorne, Robert F. | 18635 | 7/5/1957 | 1957 | . | 4417 |
| Rosaceae | Spiraea alba DuRoi | . | Hancock. | Pilot Knob State Park, Dead Man's Lake | T97N_R23W_Sec4 | On sphagnum mat of bog. | Begres, F.M. | . | 7/9/1968 | 1968 | . | 4802 |
| Rosaceae | Spiraea alba DuRoi | . | Hancock. | Pilot Knob, Dead Man's Lake | . | Floating sphagnum mat. Co white | Grant, Martin L. | 12310 | 7/8/1954 | 1954 | . | 1941 |
| Rosaceae | Spiraea salicifolia L. | . | Clayton. | Along R.R. within 1 mile of (NW) of Edgewood | . | Low prairie | Shimek, Bohumil | . | 5/31/1923 | 1923 | Annot.: = S. alba DuRoi [anon.] | 2207 |
| Rosaceae | Spiraea salicifolia L. | . | Dickinson. | East of RR. north of Milford. Near center sec. 6. | T98N_R36W_Sec6 | Prairie | Shimek, Bohumil | . | 8/24/1924 | 1924 | Spiraea alba DuRoi, Det Agnes R. Kugel, 01-1958 | 5252 |
| Rosaceae | Spiraea salicifolia L. | . | Dickinson. | Okoboji Station | . | Borders of Kettle holes | Shimek, Bohumil | . | 8/1/1901 | 1901 | Spiraea alba DuRoi, Det. Agnes R. Kugel, 01-1958, based on leaf serration | 5253 |
| Rosaceae | Spiraea salicifolia L. | . | Johnson. | Scott twnshp. Sec. 19, East side. | . | Prairie along R.R. | Shimek, Bohumil | . | 7/21/1917 | 1917 | Annot.: = S. alba DuRoi [anon.] | 2208 |
| 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 |
| Rosaceae | Cotoneaster lucida Schlecht. | . | Nobles | Worthington | . | Yard in town. Bush height 5 1/2 feet, dbh 5 feet | Gustafson, John | . | 7/10/1958 | 1958 | . | 4127 |
| Rosaceae | Potentilla pensylvanica L. | . | Rock | 3 mi. north of Luverne | . | Quartzite prairie. Co yellow | Grant, Martin L. | 12238 | 6/30/1954 | 1954 | Orig. i.d.: Potentilla missurica Hornem. Annot.: P. pensylvanica L., L. Eilers, 08-1980 | 1938 |
| Rosaceae | Prunus pumila L. | . | Rock | 3 miles north of Luverne | . | Quartzite prairie. Stems prostrate, 4' long, ascending at tips. | Grant, Martin L. | 12241 | 6/30/1954 | 1954 | Annot.: !, P. besseyi Bailey, JNB, 1983 | 1940 |
| Rosaceae | Prunus pumila L. | . | Rock | 3 miles north of Luverne | . | Upland prairie on quartzite ridge | Thorne, Robert F. | 14280 | 6/30/1954 | 1954 | Annot.: !, P. besseyi Bailey, JNB, 1983 | 4563 |
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