70. Corydalis grandiflora C. Y. Wu & Z. Y. Su, Acta Bot. Yunnan. 11: 314. 1989.
丹巴黄堇 dan ba huang jin
Herbs, perennial, glaucous, fleshy. Rootstock cylindric, 10-15 × 1-1.5 cm, with fibrous remains of leaf- and stem-bases. Stems 1-4, pale purple-green, 15-30 cm, simple, above middle with 2 or 3 leaves. Radical leaves few to several; petiole 5-10 cm; blade obovate-oblong, 9-14 × 4-6 cm, simply pinnate with 3 or 4 pairs of leaflets; lateral pinnae 2-4 × 2-3 cm, cleft to middle or less into 2-4 rounded lobes, entire or with a couple of coarse teeth. Cauline leaves: petiole to 1 cm with 1 or 2 pairs of leaflets, or uppermost leaves simple; leaflets like in radical leaves. Racemes 4-6 cm, densely 7-25-flowered, subsecund; lower bract broadly ovate, ca. 3 × 2.5 cm, trifid; middle and upper bracts ovate to broadly lanceolate, 12-20 × 5-9 mm, cuneate at base, entire. Pedicel ca. 10 mm in flower, 10-20 mm in fruit. Flowers yellow. Sepals ovate, 4-6 × 1.5-2 mm, denticulate, attenuate into a long slender tip. Outer petals broad, acute, crest high, entire, shortly extending beyond petal apices; upper petal 27-29 mm, spur slightly downcurved at tip, cylindric, short and broad, 7-8 × 3-4 mm, rounded-obtuse; nectary nearly extended to spur base, apex slightly thickened; inner petals ca. 15 mm, claw equal to limb. Stigma nearly orbicular, with 8 papillae. Capsule linear-oblong, 18-21 mm, 5-8-seeded; style ca. 4 mm. Seeds rounded, ca. 2.6 mm, smooth, with shallowly lobed appressed elaiosome.
● Alpine stone crevices. W Sichuan.