小药八旦子 xiao yao ba dan zi

Fumaria caudata Lamarck, Encycl. 2: 569. 1788; Corydalis longiflora Persoon var. caudata (Lamarck) Candolle; C. repens Mandl & Muehldorf var. humosoides Y. H. Zhang.

Herbs, perennial. Tuber rounded or oblong, 8-20 × 8-12 mm. Stems geniculate at nodes, 10-25 cm, slender, weak, usually with several branches both from prophyll and from normal leaves. Leaves glaucous abaxially, green adaxially, bi- to triternate, with long slender petiole and petiolules; petiolar base of lower leaf broadly vaginate; leaflets very discrete, orbicular to elliptic, 9-25 × 7-15 mm, margin entire or sometimes slightly divided, apex obtuse. Raceme lax, 3-8-flowered; bracts ovate to obovate, 4-7 × 3-4 mm, margin entire, apex acute. Pedicels much longer than bracts, 10-25(-40) mm, slender. Sepals caducous, small. Flowers blue or indigo, rarely purplish or white. Upper petal ca. 20 mm, petal lobes broad and flat, apex retuse; spur sigmoidally upcurved, cylindric, (10-)12-14 mm; nectary extended through ca. 3/4 of spur, apex obtuse; lower petal 10-12 mm, broad and flat, slightly emarginate, claw broadly saccate; inner petals 7-8 mm, dorsal crests not overtopping apex. Stigma square, apex with 4 papillae. Capsule ovoid to elliptic, 8-15 mm, 4-9-seeded. Seeds ca. 2 mm, smooth, with long, narrow caruncle. Fl. and fr. Apr-May.

● Mountain slopes, forest margins; 100-1200 m. Anhui, E Gansu, Hebei, Henan, Hubei, Jiangsu, Shaanxi, Shandong, Shanxi.