藏南紫堇 zang nan zi jin

Herbs, perennial, 4-7(-12) cm tall, glabrous; stems and petioles of radical leaves attenuate to filiform base. Storage roots 10-15 × 1-3 mm, tapering distally. Bulb (resting bud) large, 8-12 × 10-15 mm, of several pale fleshy ovate scales. Stems 2-5, erect, thin, simple, without leaf or with one leaf at middle. Radical leaves: petiole 1.5-4 cm; blade gray-glaucous, sometimes with small spots, orbicular-triangular, 6-15 × 12-20 mm, fleshy, ternate; leaflets shortly stalked, once to usually twice deeply ternatisect into obovate lobes. Cauline leaf small, shortly stalked, or usually absent. Raceme subumbellate, 1-2 cm, 3-5-flowered, not elongating in fruit; bracts 4-8 mm, deeply 3-8-divided into oblanceolate lobes, upward smaller and less divided. Pedicel erect, 5-15 mm. Sepals whitish, 0.5-1 mm, deeply lacerate. Petals clear blue, sometimes masked with purple, inner petals darker at tip (except for dorsal crest); upper petal navicular, 9-12 mm, rhombic-acute, often narrowly crested; spur cylindric, 3-6 mm; nectary ca. 1/2 as long as spur; lower petal 7-8 mm; claw distinct, 2.5-3 mm; limb rhombic, ca. 5 mm wide, acute to shortly acuminate, usually narrowly crested; inner petals 6-7 mm. Stigma with 4(or 6) broad marginal papillae; geminate papillae usually only on basal lobes. Capsule reflexed from straight pedicel, narrowly elliptic, 5-6 × ca. 1.5 mm, ca. 10-seeded; style ca. 2.5 mm. Fl. and fr. (Jun-)Jul-Sep.

Mossy cliffs, in grass turf of grazed meadows; 4300-5300 m. S Xizang [Bhutan, India (Sikkim), Nepal].