Lfls 9–19, linear to narrowly oblong, 1–2.5 cm, thinly strigose-canescent with malpighian hairs; spikes 4–10 cm; cal densely villous; fls purple (white), 1.5–2 cm; fr cylindric, very firm, sometimes soon glabrous, the body 8–15 mm, the beak 3–7 mm; 2n=48. Dry prairies and plains; Minn. and s. Man. to nw. Mo., Okla., and Tex., w. to Mont., Utah, and Ariz. May, June. Ours is var. lambertii.
Dry prairies, calcareous gravels and bluffs. Limestone outcrops in Texas. Dry upland prairies, pastures, hillsides, river bluffs, and roadsides, on limestone, sandstone, and shale soils; at elevations from 1,100-3,300 metres.
Can be grown by seedlings. Seeds needs soaking.
Home