Leaves (2–)4–10 cm; leaflets (7–)11–17, blades (4–)7–25 mm. Peduncles 4–12 cm. Racemes 10–20-flowered; axis 1–3.5 cm in fruit. Flowers 11.5–16.2 × 4.5–6.6 mm; calyx 5.6–6.8 mm, tube 4.6–5.7 × 3–3.8 mm, lobes subulate, 0.4–1(–2.1) mm; corolla white. Legumes narrowly oblong or oblong-ellipsoid, 6–12 × 2.5–4 mm, densely strigulose, hairs black and relatively short, with ascending, white, straight, longer ones; stipe 0.7–1.8 mm. Seeds (9–)12–16(–18).

Phenology: Flowering Jun–early Aug.
Habitat: Shaley river bluffs, shingle bars, pebbly banks of streams, on disturbed gravelly or sandy soils near highways, airfields, or beaches, dry grassy meadows, hillsides.
Elevation: 100–800 m.

Distribution

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Yukon, Alaska.

Discussion

Variety tananaicus is known mostly from the Yukon River drainage in southern Yukon and east-central Alaska.

Selected References

None.

Lower Taxa

None.