东义紫堇 dong yi zi jin

Herbs, perennial, 15-22(-30) cm tall, glabrous. Stems and petioles of radical leaves attenuate to filiform underground base. Storage roots several, fascicled, spindle-shaped, 10-20 × 3-4 mm, usually distinctly stalked petiolate. Stems 1-3, simple, with (1 or)2 leaves in upper 1/2. Radical leaves several; petiole 5-8 cm; blade glaucous abaxially, green adaxially, deltoid, biternate; pinnae with petiolule 0.7-2 cm; pinnules sessile, obovate, 1.5-4 × 1-1.5 cm, deeply (2 or)3(or 4)-divided; lobes obovate to narrowly obovate. Cauline leaves sessile, 2-3 × 2-4 cm, like radical leaves but lobes narrower. Raceme 4-7 cm, 10-15-flowered, first dense then lax; bracts 5-10 × 1-2 mm, lanceolate, entire, sometimes with short stalk, rarely lowermost bract larger and divided. Pedicel 3-5 mm, recurved in fruit. Sepals minute (ca. 0.4 × 0.2 mm). Corolla indigo; upper petal 15-16 mm, rhombic-acute, with crest 0.3-0.5 mm wide; spur slightly tapering to apex and slightly downcurved, 8-9 mm; nectary ca. 1.5 mm; lower petal subspatulate, 7-8 mm, claw shorter than limb; inner petals 6-7 mm. Stigma broader than long; marginal papillae: median 2 distinct, lateral broad, confluent; geminate papillae: lateral clearly submarginal, and on basal lobes. Capsule unknown; ovules 10; style ca. 1.5 mm.

● Among shrubs, boulders by riversides; 2600-2900 m. SW Sichuan (Daocheng).