王氏白马芥 wang shi bai ma jie

Herbs 1-1.5 cm tall; caudex few branched, to 6 mm in diam. Trichomes simple, to 1 mm, restricted to petiole margin and leaf apices, these mixed at leaf apex with fewer, forked stalked ones. Basal leaves rosulate; petiole 2-5 mm, expanded base 0.5-1.5 mm wide, ciliate; leaf blade narrowly linear, 4-15 × 0.5-1.5 mm, somewhat fleshy, base attenuate, margin entire, apex obtuse, with a tuft of trichomes. Flowers mostly in 2- or 3-flowered racemes, or solitary. Fruiting pedicels slender, 3-5 mm, ascending, glabrous. Flowers not seen. Ovules 10-12 per ovary. Fruit linear, 0.7-1.3 cm × ca. 1 mm; valves not torulose; style 0.4-0.7 mm. Mature seeds not seen. Fr. Jun.

* Under rocks; ca. 4100 m. Qinghai.