168. Stemless townsendia, Townsendia exscapa
249. Johnny-jump-up, Viola rafinesquii

April-May

26. Oval-leaf bladderpod, Lesquerella ovalifolia
27. Gordon's bladderpod, Lesquerella gordonii
68. Narrow-leaved puccoon, Lithospermum incisum
42. New Jersey Tea, Ceanothus herbaceous, var. pubescens
108. Wild onion, Allium drummondii
117. Tenpetal anemone, Anemone berlandieri
174. Wavyleaf microseris, Microseris cuspidata

April-June

76. Bastard toadflax, Comandra umbellata, ssp. pallida
126. Prairie groundsel, Senecio plattensis
158. Baby white aster, Leucelene ericoides
215. Missouri milkvetch, Astragalus missouriensis
216. Lambert crazyweed, Oxytropis lambertii

April-October

175. Dandelion, Taraxacum officinale

May

12. Red horned poppy, Glaucium corniculatum
207. Prairie turnip, Psoralea esculenta
217. Woolly loco, Astragalus mollissimus
218. Low milkvetch, Astragalus lotiflorus
219. Silky sophora, Sophora nuttalliana
270. Poison ivy, Toxicodendron rydbergii