长距元胡 chang ju yuan hu

Fumaria schanginii Pallas, Acta Acad. Sci. Imp. Petrop. 2: 267. 1779 ["schangini"]; Corydalis longiflora (Willdenow) Persoon; F. longiflora Willdenow; Pistolochia schanginii (Pallas) Soják.

Herbs, perennial, ascending or nearly erect, 10-35 cm tall, robust. Tuber rounded to oblong, 1.5-3 cm in diam. Stems simple or with 1 branch from prophyll, often with 2 leaves. Leaves glaucous, slightly thick; petiole ca. 1/3 as long as blade; blade biternate with entire or deeply divided leaflets; segments ovate to lanceolate, usually acute. Raceme 5-25-flowered, rather dense; bracts ovate-lanceolate to linear-lanceolate, ca. as long as or often longer than pedicels, entire. Pedicel 5-10(-15) mm, to 10-20 mm in fruit. Sepals small. Flowers pink, often with darker veins, long, narrow; inner petals with sharply contrasting blackish purple apex. Outer petals subacute, with narrow margins; upper petal 35-45 mm; spur ± downcurved in distal 1/2, 21-28 mm, attenuate to a slender acute apex; nectary ca. 5 mm, apex obtuse; lower petal straight, narrow, without sac; inner petals 14-16 mm. Stigma nearly square, with 6-8 papillae. Capsule linear, 18-25 × 2-3 mm, 4-8-seeded. Seeds ca. 2.5 × ca. 2 mm, smooth; elaiosome long, narrow, with brownish base. Fl. and fr. May.

Mountain meadows, among shrubs, grasslands; 500-2000 m. NW Xinjiang (Altay, Tacheng, Yining) [Kazakhstan, N Kyrgyzstan, W Mongolia, S Russia].

This species is represented in China by subsp. schanginii.