Herbs, annual, rounded, strag­gly (like tumbleweed), green to grayish, 2–3 dm, not fleshy, glabrate; taprooted. Stems 1–20+, ascending, branched basally, herbaceous, leafy. Leaves pinnate; stipules glandlike; subsessile; rachis 3–8 mm, flattened; leaflets 5–7, blades oblong, apex obtuse, surfaces tomentulose. Peduncles ascending, filiform, 10–20 mm, longer than leaves; bract absent. Inflorescences 1-flowered. Flowers 4–5 mm; calyx 2.5–3 mm, tube pubescence not observed, lobes subulate, shorter than tube; corolla yellow turning red, claws ± equaling calyx tube, banner cuneate to short-clawed, wings equal to keel; style thickening and shape not observed, puberulent becoming glabrate. Legumes persistent, exserted, erect, brown, curved distally, compressed, oblong, leathery, dehiscent, smooth, margins smooth, strigillose. Seeds olive green to dark brown, ± mottled, oblong, sculpture not observed.

Phenology: Flowering spring.
Habitat: Desert scrub.
Elevation: 600–800 m.

Distribution

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Nev.

Discussion

Acmispon intricatus is known only from the type locality in the Valley of Fire in Clark County; it has not been recollected. D. Isely (1981) acknowledged that A. intricatus could be a phenotypic variant of A. strigosus var. tomentellus, but he stated that they differ in growth habit.

Selected References

None.

Lower Taxa

None.