9. Scarlet gaura, Gaura coccinea
13. Western wallflower, Erysimum asperum
14. Evening primrose, Oenothera macrocarpa
43. Trailing krameria, Krameria lanceolata
55. Scarlet globe mallow, Sphaeralcea coccinea
82. Low stickseed, Lappula redowskii
83. Cupseed stickseed, Lappula texana
85. Cryptantha, Cryptantha minima
95. Nuttall evolvulus, Evolvulus nuttallianus
99. Spider antelope horns, Asclepias asperula var. decumbens
100. Green antelope horns, Asclepias viridis
110. Small soapweed, Yucca glauca
119. Common prickly pear, Opuntia macrorhiza
138. Common yarrow, Achillea millefolium
169. Plains daisy, Erigeron modestus
170. Trailing fleabane, Erigeron flagellaris
176. Rough false dandelion, Pyrrhopappus grandiflorus
177. Goat's beard, meadow salsify, Tragopogon dubius
199. Blue false indigo, Baptisia australis var. minor
209. Tallbread scurf-pea, Psoralea cuspidata
212. Slender milkvetch, Astragalus gracilis
220. Wild licorice, Glycyrrhiza lepidota
247. Lemon painted-cup, Castilleja purpurea var. citrina
248. Lemon painted-cup, Castilleja purpurea var. purpurea
265. Red-seeded plantain, Plantago rhodosperma

May-July

127. Plains hymenoxys, Hymenoxys scaposa
128. Paperflower, Psilostrophe villosa
266. Woolly indianwheat, Plantago patagonica