Plants cespitose, appearing acaulescent. Leaves 4–14 cm; stipules stiff, papery, becoming reddish brown, 12–20 mm, free ends caudate-acuminate, pilose to glabrate abaxially, margins ciliate; leaflets 11–21, blades ovate to lanceolate, elliptic, or oblong, 4–17 × 2–4 mm, apex acute or obtuse, surfaces pilose on midrib abaxially, pilose or glabrous adaxially. Peduncles erect or ascending, 4–15 cm, spreading-villous; bract lanceolate, shorter to longer than calyx, villous, margins ciliate. Racemes 6–10-flowered, subcapitate, slightly elongate in fruit. Calyces short-cylindric, villous, hairs intermixed black and white; tube 5–6 mm, lobes 1.5–3.2 mm. Corollas yellowish, keel tip not maculate, 13–17 mm. Legumes erect, sessile or subsessile, ovoid-ellipsoid, 15–21 × 5–7 mm, length less than or equal to 3 times width, partially bilocular, papery, sulcate adaxially, pilose, hairs black and white. 2n = 96.

Phenology: Flowering late spring–summer.
Habitat: Arctic and alpine tundra, heathlands, alluvial sands, gravels, dry rocky slopes.
Elevation: 0–1900 m.

Distribution

• Generated Map
• Legacy Map

B.C., N.W.T., Nunavut, Que., Yukon, Alaska, e Asia (Chukotsk, Kamchatka).

Discussion

Oxytropis maydelliana has yellowish flowers and reddish brown stipules, which easily characterize this arctic species.

Selected References

None.

Lower Taxa

None.