Draba yunnanensis Franchet

Herbs perennial, (5-)10-35(-60) cm tall, cespitose, canescent at least basally. Caudex simple or few to many branched, ultimate branches terminated in rosettes. Stems erect, simple, densely pubescent with a mixture of simple and sessile stellate trichomes, apically tomentose with appressed stellate ones. Basal leaves rosulate, persistent, sessile, oblong, oblong-linear, to narrowly oblanceolate, (0.5-)1-3.5(-5) cm × (1.5-)2-6(-8) mm, abaxially densely pubescent with subsessile, 5-8-rayed stellate trichomes, adaxially with a mixture of primarily simple trichomes and fewer stellate ones, rarely exclusively simple or stellate, base cuneate, margin entire, apex obtuse. Cauline leaves (4-)6-12(-18), sessile; leaf blade narrowly oblong, rarely lanceolate, (0.5-)1-3.8(-5) cm × 1.5-5(-8) mm, pubescent as basal leaves, base obtuse, not auriculate or amplexicaul, margin entire, apex obtuse. Racemes (12-)20-60(-80)-flowered, bracteate basally, elongated considerably in fruit. Fruiting pedicels (0.3-)0.5-1.5(-2) cm, divaricate, straight or slightly curved, glabrous adaxially, pubescent abaxially with stellate trichomes. Sepals oblong or ovate, 2-3(-3.5) × 1-1.5(-2) mm, ascending, abaxially sparsely pilose with primarily simple trichomes, base of lateral pair subsaccate, margin membranous. Petals yellow, obovate, 5-7(-8) × 2-3(-4) mm, apex emarginate; claw 1-2 mm. Filaments 2-3.5 mm; anthers oblong, 0.5-0.9 mm. Ovules (4-)6-10(-12) per ovary. Fruit ovate, sometimes elliptic or suborbicular, 3-7(-10) × 2-3(-4) mm, latiseptate, sometimes slightly twisted; valves glabrous, obscurely to distinctly veined; style 0.4-1.2(-2) mm. Seeds brown, ovate, 1.4-1.9 × 0.9-1.4 mm. Fl. May-Jul, fr. Jun-Sep.

Sichuan, Xizang, Yunnan.

* Rock crevices, limestone scree, open Pinus-Quercus forests, grassy scrub, limestone cliffs; 2300-5500 m.

Draba yunnanensis var. gracilipes Franchet; D. yunnanensis var. latifolia O. E. Schulz; D. yunnanensis var. microcarpa O. E. Schulz.

Draba yunnanensis là một loài thực vật có hoa trong họ Cải. Loài này được Franch. mô tả khoa học đầu tiên năm 1886.

云南葶苈（学名：Draba yunnanensis）是十字花科葶苈属的植物，是中国的特有植物。分布于中国大陆的云南、西藏、四川等地，生长于海拔2,300米至4,600米的地区，常生长在岩石间隙以及山坡水边，目前尚未由人工引种栽培。