صورة Xylorhiza wrightii (A. Gray) Greene

الوصف:

on low badland slopes and drainage rills in fractured gypseous, shaley Cretaceous limestone with Stenandrium barbatum, Amsonia longiflora, Ariocarpus fissuratus, Echinocactus horizonthalonius, Nama havardii, Thymophylla acerosa, Dalea wrightii, Polygala macradenia, Nerisyrenia camporum.