Draba draboides (Maxim.) Al-Shehbaz

Presently treated by Ihsan Al-Shehbaz as Draba draboides (Maximowicz) Al-Shehbaz (Novon 14(2): 154. 2004).

Herbs stoloniferous, with many stems covered with persistent petiolar remains of previous years. Stems 4-8 cm, pilose, with crisped, simple and forked trichomes; flowering stems leafless or few leaved, sterile ones shorter, several leaved. Basal leaves oblong, obovate, or oblanceolate, 4-10(-15) × 2-4(-5) mm, sparsely pilose, then glabrescent, base cuneate or attenuate, margin entire, ciliate with primarily simple trichomes to 1.1 mm, apex obtuse or acute; midvein prominent at base abaxially. Cauline leaves similar to basal ones. Fruiting pedicels straight or slightly curved, divaricate, 4-10(-14) mm, pilose, with crisped minute trichomes. Sepals broadly ovate or oblong, 1.7-2.5 × 1-2 mm, caducous; lateral pair larger than median pair, subsaccate. Petals yellow, obovate, 4-5 × 2-2.5 mm, apex shallowly emarginate; claw to 1 mm. Filaments yellow; lateral pair 1-1.3 mm; median pairs 1.2-1.6 mm, dilated basally, to 0.5 mm wide; anthers yellow, 0.3-0.4 mm. Fruit broadly ovate to ovate-oblong, 4-6.5 × 2-3.5 mm, puberulent or glabrous; style slender, 0.5-1 mm; stigma wider than style. Seeds blackish, ovate, 1.1-1.3 × 0.9-1. Fl. Jun-Jul, fr. Jul-Aug.

Gansu, Qinghai.

* Grassy slopes, rocky crevices; 3500-4000 m.

Draba oreodoxa W. W. Smith var. glabra L. L. Lou & T. Y. Cheo; D. stepposa L. L. Lou & T. Y. Cheo.