Plants of Iowa

"The vascular plants of Iowa: an annotated checklist and natural history."   Lawrence J. Eilers & Dean M. Roosa

          (an update of the checklist begins)
Conifers Dicots Ferns & Fern Allies Monocots
Make a vascular plant checklist for a particular county.

Herbaria of Iowa

Fetch plant information from a specimen database.

Distribution, identification, and hybridization within Acer, Carya, Fraxinus, Juglans, and Quercus in Iowa.

Ashes Hickory, Butternut, & Walnut Maples Oaks
Manuscript:   Distribution, identification, and infidelity in Iowa: Acer, Carya, Fraxinus, Juglans, and Quercus.

Plant information websites.

Plant Image Resources Plant Information Resources Tree & Shrub
     Selection and Planting Guides
Flora of North America PLANTS Database The Plant List Taxonomic Name Resolution Service
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"You can observe a lot by just watching."
  -----   Yogi Berra