Herbs, annual, cespitose, green, 0.3–4.8 dm, not fleshy, glabrous or sparsely strigillose; tap­rooted. Stems 1–10, erect to procumbent, branched or unbranched, herbaceous, leafy. Leaves irregularly pin­nate to palmate; stipules glandlike; subsessile to short-petiolate; rachis 2–8 mm, sometimes flattened; leaflets 3–5, blades obovate to oblong or elliptic, apex obtuse, surfaces strigose. Peduncles ascending, filiform, (0 or)1–26(–55) mm, shorter to longer than leaves; bract (1–)3-foliolate, distal. Inflorescences 1-flowered. Flow­ers (2.5–)4–6 mm; calyx 1–2.5 mm, tube sparsely strigil­lose, lobes subulate; corolla pink or salmon, quickly fading, with yellowish wings and keel, claws longer than calyx tube, banner implicate, wings ± equaling to slightly longer than keel; style curved, glabrous. Legumes per­sistent, exserted, erect or spreading, brown or tawny, curved or straight, compressed, constricted, not septate, narrowly oblong, 15–27 × 2–2.5 mm, thinly leathery, apex short hook-beaked, dehiscent, smooth, margins smooth, thin, wavy, glabrous or sparsely strigillose. Seeds 3–9, brown, not mottled, subglobose to shortly oblong, smooth. 2n = 14.

Phenology: Flowering spring(–early summer).
Habitat: Coastal bluffs, clearings in oak-pine or fir woodlands, open grassy areas, burnt chaparral, cut-overs, riverbars, banks, thickets, open disturbed areas, roadsides.
Elevation: 0–1400 m.

Distribution

• Generated Map
• Legacy Map

B.C., Calif., Oreg., Wash.

Discussion

Acmispon parviflorus occurs in California from the Peninsular Ranges, the South Coast, and the Channel Islands northward to the northwest, the Sacramento Valley, and the northern and central Sierra Nevada, through coastal western Oregon and Washington from the Cascade Range westward, into southwestern British Columbia.

Selected References

None.

Lower Taxa

None.