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FOC | Family List | FOC Vol. 7 | Papaveraceae | Corydalis

96. Corydalis pterygopetala Handel-Mazzetti, Anz. Akad. Wiss. Wien, Math.-Naturwiss. Kl. 62: 222. 1925.

翅瓣黄堇 chi ban huang jin

Herbs, erect, 30-120 cm tall. Roots many, when dried black-brown, linear, to 10 cm or more, stout. Stems strong, stout, when dried ridged, sparsely branched in upper 1/2, lower part usually without leaves. Radical leaves: petiole 20-30 cm; blade glaucous abaxially, green adaxially, broadly ovate, 6-12 cm, bi- to triternate; primary pinnae long petiolulate, ultimate leaflets entire or deeply cleft; lobules obovate or elliptic, margin entire, apex obtuse, mucronate. Cauline leaves 3-6, lower ones petiolate, upper ones subsessile, like radical leaves. Racemes simple or basally branched, often many together in a panicle, 10-25-flowered; bracts linear-lanceolate, 3-10 mm, entire. Pedicel 3-6 mm, thin, straight in flower, reflexed in fruit. Sepals caducous, broadly ovate, 0.5-1 × 1-1.5 mm, deeply dentate. Corolla yellow, fragrant; outer petals with dorsal crests reaching apex, subacute or shortly acuminate; upper petal 16-20 mm, crest decurrent on spur or crest absent; spur upcurved, cylindric, 9-14 mm; nectary extended through 3/4-9/10 of spur and thin, or absent; inner petals 7-9 mm, claw nearly equal to petal lobes. Stigma with median apical lobes long stalked, basal lobes moderately developed. Capsule linear-oblong, 12-17 × ca. 1.5 mm, 5-8-seeded; style ca. 3.5 mm. Seeds black, shiny, elliptic, ca. 1 × 1.3 mm. Fl. and fr. May-Sep.

Forests, forest margins, shrubs, grasslands on slopes, roadsides; 1800-4200 m. SE Xizang, SW and W Yunnan [N and NE Myanmar].

This is a very variable species, here provisionally divided into five varieties.

1 Upper petal without crest.   96c var. ecristata
+ Upper petal with crest   (2)
2 (1) Flowers 21-28 mm.   96b var. megalantha
+ Flowers 16-21 mm   (3)
3 (2) Plant with widely spreading branches; spur broad at apex; nectary ca. 3/4 as long as spur.   96d var. divaricata
+ Plant erect, with suberect branches; spur narrowed toward apex; nectary reaching 4/5-9/10 of spur or absent   (4)
4 (3) Spur 6-7 mm; nectary absent; basal geminate papillae present.   96e var. parviflora
+ Spur longer; nectary present; basal geminate papillae absent.   96a var. pterygopetala

Lower Taxa


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