拐芹 guai qin

Angelica sinuata H. Wolff; Peucedanum taquetii H. Wolff; Rompelia polymorpha (Maximowicz) Koso-Poljansky; Selinum coreanum H. de Boissieu.

Plants perennial, 0.5–1 m. Root conic, gray-brown. Stem solitary, purplish around nodes, thinly ribbed, glabrous or sparsely hispidulous above. Petioles up to 15 cm, sheaths narrow-oblong; blade triangular-ovate, 15–30 × 15–25 cm, 2–3-ternate-pinnate, rachis and petiolules geniculate; leaflets ovate or rhombic-oblong, 3–5 × 2.5–3.5 cm, irregularly 2–3-lobed and incised-cuspidate-serrate, scabrous along nerves bifacially or glabrous abaxially. Umbels 4–10 cm across; peduncles, rays and pedicels densely hispidulous; bracts absent or 1–3, narrow-lanceolate and ciliate; rays 10–20, 1.5–3 cm; bracteoles 7–10, narrow-linear, purplish, ciliate. Calyx teeth obsolete. Petals white, spatulate. Fruit oblong-ellipsoid, 6–7 × 3–5 mm; dorsal ribs prominent, narrow-winged, lateral ribs broad-winged; vittae 1 in each furrow, 2 on commissure. Fl. Aug–Sep, fr. Sep–Oct. n = 11*.

Forests, damp grasslands, streamsides; 1000–1500 m. Anhui, Hebei, Heilongjiang, Hubei, Jiangsu, Jilin, Liaoning, Shaanxi, Shandong, Zhejiang [Japan, Korea].

The roots have reputed medicinal properties.