硬阿魏 ying a wei

Peucedanum rigidum Bunge.

Plants 30–60 cm. Stems slender, 2–3 × corymbose-branched, lower branches alternate, upper branches opposite or verticillate. Basal leaves rosetted; blade broadly ovate or triangular, 2–3-pinnatisect; ultimate segments glaucous-blue, long-elliptic or ovate, 1–3 × 1–2 mm, pinnatifid, lobules cuneate-obovate, apex 3-triangular-toothed, sub-leathery, rigid, densely pubescent, base cuneate, apex mucronate. Cauline leaves few, uppermost leaves bladeless, petioles wholly sheathing. Umbels 4–12(–25) cm across; bracts absent or 1–2, subulate; rays 4–15, unequal, spreading; bracteoles 3–5, linear-lanceolate, unequal; umbellules 5–12-flowered. Stylopodium low-conic, base dilated. Fruit broadly ellipsoid, 10–15 × 4–6 mm; lateral ribs narrowly winged; vittae 1 in each furrow, 2 on commissure. Fl. and fr. May–Jul.

Gravelly slopes, sandy places; 200–2500 m. Gansu, Hebei, Heilongjiang, Henan, Jilin, Liaoning, Nei Mongol, Ningxia, Shaanxi, Shanxi.

This species has reputed medicinal value.