Biennials or perennials; (short-lived); caudex simple (covered with persistent leaves); not scapose. Stems branched, (0.3-) 0.4-1.7(-2.5) dm, pubescent throughout, trichomes simple and long-stalked, 2-rayed, 0.4-1.4 mm, with smaller, 2-4-rayed ones, 0.1-0.6 mm, (simple ones usually fewer distally). Basal leaves (densely imbricate); rosulate; shortly petiolate; petiole base and margin ciliate, (trichomes simple, 0.6-2 mm); blade oblong to narrowly oblanceolate, (0.5-)1-2.2(-4.5) cm × 2-5 mm, margins entire, surfaces densely pubescent, abaxially with stalked, 2-4-rayed trichomes, 0.4-1.2 mm, (simple trichomes often along midvein), adaxially with mostly simple and long-stalked, 2-rayed trichomes, 0.6-1.3 mm, sometimes with 3-or 4-rayed ones. Cauline leaves (4-)6-10(-13); sessile; blade oblong to ovate, margins entire, surfaces pubescent as basal. Racemes (10-)18-55(-67)-flowered, ebracteate or proximalmost flowers bracteate, slightly or considerably elongated in fruit; rachis not flexuous, pubescent as stem. Fruiting pedicels divaricate to ascending, straight, 2-6(-8) mm, pubescent as stem. Flowers: sepals oblong, 2-2.7 mm, pubescent, (trichomes short-stalked, 2-4-rayed); petals yellow, linear, 2-3.5 × 0.2-0.5 mm; anthers oblong, 0.6-0.8 mm (exserted). Fruits elliptic to oblong or linear-to oblong-elliptic, slightly twisted or plane, flattened, 5-13(-17) × 2-3(-4) mm; valves pubescent, trichomes short-stalked, cruciform, 0.1-0.5 mm, (sometimes with 2-or 3-rayed ones); ovules 16-28 per ovary; style 1.4-3.4 mm. Seeds oblong, 1-1.2 × 0.6-0.8 mm.
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