Herbs perennial or sometimes biennial, (4-)10-80(-110) cm tall, usually densely hispid, with simple and stalked, forked or substellate trichomes. Stems erect, usually simple basally, often branched above. Basal leaves rosulate; petiole (0.5-)1-2 cm; leaf blade spatulate, oblanceolate, or oblong, (1.5-)2.5-8(-10) × (0.5-)1-2.5 cm, pubescent, margin entire, repand, or dentate, apex obtuse or acute. Cauline leaves sessile, lanceolate, oblong, oblanceolate, or ovate, (1-)1.5-5(-7) × (0.5-)1-2 cm, hirsute on both surfaces or adaxially glabrescent, base subcordate or auriculate and with obtuse or subacute auricles, margin dentate or entire, apex acute or obtuse. Racemes ebracteate. Fruiting pedicels erect to erect-ascending, (2-)3-10(-15) mm, slender, glabrous or sparsely hirsute. Sepals narrowly oblong, 2.5-4 × 0.5-1.2 mm, not saccate. Petals white, rarely pink or purplish, linear-oblanceolate or narrowly spatulate, rarely linear, (3.5-)4-5 × 1-1.5 mm, apex obtuse. Filaments slender, 2.5-4.5 mm; anthers oblong, 0.7-1 mm. Ovules 30-80 per ovary. Fruit linear, (1.5-)2-5.5(-7) cm × 0.8-1.2 mm, erect to erect-ascending, often subappressed to rachis, flattened; valves glabrous, torulose, with a prominent midvein extending full length; style (0.1-)0.3-0.8(-1) mm. Seeds brown, oblong or suborbicular, (0.8-)1-1.5(-1.7) × 0.8-1.3 mm, uniseriate, wingless, narrowly winged all around, or winged distally. Fl. Apr-Aug, fr. May-Sep. 2n = 32.
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Much like no. 1 [Arabis glabra (L.) Bernh.], 2–8 dm; cauline lvs oblong to lance-linear, 1–3 cm, at least the lower pubescent; style 0.5–1 mm; frs flat, 3–5 cm × 0.7–1.1 mm, the valves 1-nerved to or somewhat beyond the middle; seeds in 1 row, the wing evident to lacking; 2n=32. Circumboreal, with 3 vars. in Amer., as follows:
A cabbage family herb. It grows up to 80 cm tall. The stems are erect and branch higher up. The leaves at the base are in a ring. They can be spoon shaped or oblong. The leaves on the stem do not have leaf stalks. They are 2-5 cm long by 1-2 cm wide.
Chalk and limestone slopes, limestone rocks and walls, dunes and dry banks. Meadows, grassy slopes, roadsides, mixed forests; at elevations from 300-4,000 metres in China.
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It grows in meadows, grassy slopes, roadsides, mixed forests between 300–4000 m altitude in China.
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