Bull. Soc. Imp. Naturalistes Moscou 10: 57. 1837.
Perennials; (cespitose, caudex often woody); canescent throughout, trichomes 10–25-rayed. Stems often several from base (often with sterile shoots), usually erect or ascending, 0.7–1.5 (–2) dm. Cauline leaves subsessile; blade broadly oblanceolate, obovate-spatulate, or obovate, 0.6–1.4 (–1.7) cm × (1–) 2–6 mm (gradually smaller distally), base attenuate, apex rounded, obtuse, or subacute. (Racemes corymbose, simple, or in panicles terminating each stem.) Fruiting pedicels divaricate, straight, slender, (2–) 3–7 (–9) mm, trichomes uniformly stellate. Flowers: sepals oblong, 1.5–2 × 0.7–1 mm, stellate-pubescent; petals yellow, broadly spatulate, 2.5–3.5 (–4) × 1–1.5 mm, base attenuate, apex often obtuse or rounded, glabrous abaxially; filaments: median pairs unilaterally broadly winged, apically 1-toothed, lateral pair with lanceolate or narrowly oblong basal appendage, apically obtuse or subacute, 1.5–2 mm; anthers oblong, 0.3–0.4 mm. Fruits broadly elliptic or obovate, 3–4.5 (–5) × 2.5–3.5 mm, apex obtuse to rounded; valves inflated at middle or on 1 side, flattened at margins, densely stellate-pubescent; ovules (1 or) 2 per ovary; style (slender), 1.5–2 mm, glabrous. Seeds ovoid, compressed, 1–1.7 × 0.8–1.2 mm, not winged or margined. 2n = 16, 32.
Phenology: Flowering May–Jul.
Habitat: Mountain slopes, cliffs, gravel, rocky places
Elevation: 500-1500 m
Yukon, Alaska, c, e Asia
"elongated" is not a number."thick" is not a number."dm" is not declared as a valid unit of measurement for this property.