小单花荠 xiao dan hua ji

Pegaeophyton garhwalense H. J. Chowdhery & Sur. Singh.

Herbs with slender, branched caudex 0.75-2 mm in diam. Petiole (3-)5-10(-15) mm; leaf blade obovate, spatulate, ovate, oblong, or oblanceolate, 1-4(-5) × (0.5-)1-1.5(-2) mm, somewhat fleshy, adaxially sparsely puberulent with trichomes 0.02-0.08 mm, rarely glabrous, abaxially glabrous, base cuneate or subattenuate, margin entire, apex obtuse to subrounded. Fruiting pedicels slender, puberulent along 1 side of entire length with trichomes 0.02-0.08 mm, (1-)1.5-2.5(-4) cm, persistent. Sepals broadly ovate, 1.2-2 × 0.8-1.2 mm, free, glabrous, distally ciliate with flattened trichomes to 0.05 mm. Petals white, lilac, or violet, broadly obovate or suborbicular, (1.5-)2-3(-4.5) × 1.5-2.5(-3) mm, tapering to clawlike base 0.7-1.5 mm. Filaments dilated at base, (0.9-)1-1.5 mm; anthers broadly ovate or suborbicular, 0.3-0.4 mm. Fruit latiseptate, not geocarpic, narrowly oblong, 3-5 × 1-1.2 mm; valves nearly flat, extending along part of fruit length; gynophore 0.25-0.5 mm; style 0.3-0.4 mm. Seeds 3-5, broadly ovate, brown, plump, 1-1.2 × 0.6-0.7 mm. Fl. May-Jul.

Mossy wet ledges, hillsides, mossy granite or boulders, steep grassy slope; 3700-4200 m. Xizang [Bhutan, India (Uttar Pradesh), Nepal, Sikkim].