短轴黄堇 duan zhou huang jin

Corydalis foetida C. Y. Wu & Z. Y. Su var. brevipedunculata Z. Y. Su, Acta Bot. Yunnan. 9: 41. 1987.

Herbs, annual, glaucous, 25-50(-70) cm tall, with taproot and many suberect to trailing stems. Stems branched and leafy throughout. Basal leaves ca. 10 cm; petiole slightly longer than blade, base ± sheath-form; blade pale abaxially, green adaxially, ovate-lanceolate, bipinnate; pinnae 2 or 3 pairs, petiolulate; pinnules 1(or 2) pairs, terminal deeply 3-divided, lateral ones smaller, almost sessile, deeply 3-divided, terminal segments 3-lobed, lateral segments 2- or 3-lobed, sometimes not lobate; ultimate segments lanceolate, 3-5 × ca. 2 mm. Cauline leaves like basal leaves, but petiolar base sheathed. Racemes subsessile, ca. 1 cm, 3-5-flowered; bracts ovate-lanceolate, 3-4 mm. Pedicel 2-4 mm, recurved in fruit. Flowers pale yellow. Sepals caducous, ovate, ca. 1 mm. Outer petals acuminate, without or with very narrow crest; upper petal 12-13 mm; spur broadly saccate, ca. 3 mm; nectary extended through ca. 1/2 of spur, thin; inner petals 8-9 mm. Stigma horizontally extended 2-armed, each 1/2 with 1 distinct apical forward-projecting papillae and diffuse terminal papillae. Capsules very densely set, drooping, linear-oblong, slightly curved, 15-20 × ca. 2 mm, 5-9-seeded. Seeds in 1 row, with concentric rows of small linear impressions, compressed-lenticular, keeled, ca. 1.5 mm, with cupular caruncle. Fl. and fr. Apr-Aug.

● Mountain slopes, wastelands, roadsides, walls; 1000-2200 m. SE Gansu (Wenxian, Wudu), Sichuan (Maoxian, Nanping).

This species is very similar to Corydalis foetida, but the flowers are smaller and the racemes are tightly congested, sessile, few flowered.