Astragalus robbinsii var. harringtonii

Stems ascending, (10–)15–35 cm. Leaves 4–7.5(–10) cm; leaf­lets 9–15, blades 5–23 mm, surfaces densely gray or white villous-pilosulous abaxially, glabrous or sparsely strigulose adaxially, hairs fine, loosely spreading or ascending, 0.6–0.8 mm. Peduncles (3–)6.5–15 cm. Racemes densely 9–20-flowered; axis 1.5–5(–10) cm in fruit. Flowers 9.5–11.5 mm; corolla purplish or bluish lavender. Legumes 12–15 × 4–6 mm, densely villosulous, hairs black; septum 1.2–2 mm wide; stipe 1.2–3 mm. Seeds 6–8.

Phenology: Flowering late May–Aug.
Habitat: Gravel bars and banks in alder, spruce, and birch woods.
Elevation: 10–400 m.

Distribution

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Alaska.

Discussion

Variety harringtonii occurs in southern coastal Alaska.

S. L. Welsh (1974) treated var. harringtonii at the specific level because of the degree of divergence expressed by this taxon relative to other variants within the species.

Selected References

None.

Lower Taxa

None.