Flora of North America species comparison

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Dalea purpurea var. arenicola

Dalea purpurea var. purpurea
Photo is of parent taxon

purple prairie clover
Photo is of parent taxon

purple prairie clover
Habit Herbs glabrous proximal to inflorescences. Herbs usually puberulent, pilose, or tomentulose, some-times glabrous proximal to inflorescences.
Stems

2–4(–5) dm.

2–9 dm.
Peduncles

3–15 cm.

0–10 cm, often absent or very short on side shoots.
Spikes

7–9 mm diam. 2n = 14.

(8–)9.5–12 mm diam. 2n = 14.

Dalea purpurea var. arenicola

Dalea purpurea var. purpurea
Phenology Flowering late spring–summer. Flowering summer.
Habitat Sandy or rocky areas, often in alluvium. Prairies, open woods.
Elevation 500–1300 m. (1600–4300 ft.) 10–2300 m. (0–7500 ft.)
Distribution
from FNA
CO; KS; NE; NM; OK; TX
from FNA
AL; AR; AZ; CO; GA; IA; IL; IN; KS; KY; LA; MI; MN; MO; MS; MT; ND; NE; NM; NY; OH; OK; SD; TN; TX; WI; WY; AB; MB; ON; SK
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.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

In Texas, var. purpurea is known from scattered localities across the northern part of the state with a range that does not overlap with var. arenicola. Variety purpurea is introduced in Arizona and probably elsewhere.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 11. FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Dalea > Dalea purpurea Fabaceae > subfam. Faboideae > Dalea > Dalea purpurea
Sibling taxa
D. purpurea var. purpurea
D. purpurea var. arenicola
Synonyms Petalostemon arenicola, D. arenicola
Name authority (Wemple) Barneby: Mem. New York Bot. Gard. 27: 267. (1977) unknown
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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