索县黄堇 suo xian huang jin

Herbs, perennial, 40-70 cm tall, glabrous; stems and petioles of radical leaves attenuate to filiform underground base. Storage roots few, oblong, 3-4 cm × 3-4 mm, sessile. Stems suberect, branched, especially above, with 2-5 leaves. Radical leaves not seen. Cauline leaves: lower petiole 5-12 cm, shorter upward, uppermost sessile; blade pruinose abaxially, broadly ovate, lower ones 4-8 × 4-6 cm, upper ones smaller, bipinnate; pinnae 2(or 3) pairs, petiolulate; pinnules petiolulate or sessile, entire or deeply 2-4-divided; lobes oblanceolate, mucronate. Racemes 3-10 cm, 15-20-flowered; bracts flabellate to pectinate or deeply dentate, or upper ones entire, 5-10 mm. Pedicel 6-11 mm, slender, recurved in fruit. Sepals ca. 1 × 1 mm, fimbriate-dentate. Petals yellow, with greenish keel to outer petals, veins ?distinct; upper petals rhombic-acute, 14-15 mm, crest 1-2 mm wide, tapering to both ends, decurrent on spur to ca. 1/2; spur slightly downcurved at tip, cylindric, 8-9 mm; nectary ca. 1/2 as long as spur; lower petal obovate, 7-9 mm, cuneate to base, margin undulate-dentate, apex shortly acuminate, crest short; inner petals ca. 7 mm. Stigma with marginal papillae: median 2 distinct, lateral broad, diffuse; geminate papillae sublateral (clearly submarginal) and on well-developed rounded basal lobes. Capsule terete, ca. 8 × 2 mm, with lines of papillae, 2-5-seeded; style ca. 3 mm. Seeds in 1 row, black, shiny, nearly orbicular, ca. 2 mm in diam.; caruncle large. Fl. and fr. Jun-Aug.

● Shrubs, riversides; 3700-4000 m. E Xizang (Gongbo’gyamda, Nyingchi, Sogxian).