Dalea purpurea var. arenicola
Mem. New York Bot. Gard. 27: 267. 1977.
Endemic
Basionym: Petalostemon arenicola Wemple Iowa State J. Sci. 45: 94, figs. 8, 11I, 12D. 1970
Synonyms: Dalea arenicola (Wemple) B. L. Turner
Treatment appears in FNA Volume 11.
Herbs glabrous proximal to inflorescences. Stems 2–4(–5) dm. Peduncles 3–15 cm. Spikes 7–9 mm diam. 2n = 14.
Phenology: Flowering late spring–summer.
Habitat: Sandy or rocky areas, often in alluvium.
Elevation: 500–1300 m.
Distribution
Colo., Kans., Nebr., N.Mex., Okla., Tex.
Discussion
In Texas, var. arenicola is known from the northwestern quarter of the state. Variety arenicola occurs in areas of loose sand, while var. purpurea occurs in more compacted soil. The varieties are generally fairly distinctive except in areas where the two types of soils are in close proximity.
Selected References
None.
Lower Taxa
None.