Stems 1 to several from basal rosette or solitary from rhizomes, 3-9 cm tall, simple or few branched, with spreading or appressed simple trichomes to 0.3 mm. Basal leaves oblanceolate, 6-10 × 1.5-2.5 mm, densely covered with straight, simple trichomes 0.8-1.3 mm. Cauline leaves oblong to oblong-oblanceolate, 2.5-5(-8) × 1-2(-2.5) mm, sessile, glabrous or minutely pubescent, margin entire, apex obtuse. Racemes not elongated in fruit. Fruiting pedicels slender, straight, divaricate, 5-6 mm, pilose. Sepals obovate, membranous, early caducous and leaving 4 receptacular teeth, 1.8-2.7 × 1.2-1.5 mm, entire, rounded at apex. Petals creamy white with dark green veins, pale to light brown at base of blade, persistent to fruit maturity, broadly obovate, 6-7 × 4-5.5 mm, 2-lobed, abruptly narrowed to claw, apical notch to 2 mm deep; claws 1.5-2.5 mm. Filaments white, lateral pair 1.8-2.2 mm; median pairs 1.9-2.5 mm, strongly inflated on basal half into an oblong appendage 1.1-1.3 mm; anthers green. Fruit valves thin papery, 3-4 × 1.5-2 mm, with 3 rows of crests; gynophore obsolete or to 0.1 mm; style conical, glabrous, 1-1.5 mm. Seeds 2.5-3 × 1.1-1.3 mm. Fl. & fr. Aug.
* Limestone gravel; 4300-4600 m. Yunnan.