March-May

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

March-October

237. Henbit deadnettle, Lamium amplexicaule

April

40. Stork's bill, Filaree, Erodium cicutarium

April-May

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

April-June

53. Light poppy mallow , Callirhoe alcaeoides
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-July

206. James' dalea, Dalea jamesii
258. Rabbit tobacco, Evax prolifera

April-October

33. Watercress, Nasturtium officinale
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