山芎 shan xiong

Athamanta chinensis Linnaeus, Sp. Pl. 1: 245. 1753; Cnidium chinense (Linnaeus) Sprengel ex Steudel; Kreidon chinensis (Linnaeus) Rafinesque; Ligusticum chinense (Linnaeus) Crantz; Selinum chinense (Linnaeus) Druce.

Plants 50–100 cm. Root dark brown, branched. Stem branched. Basal and lower petioles ca. 5 cm, sheaths narrow-ovate; blade ovate to triangular-ovate, 15–20 × 10–15 cm, 2–3-ternate-pinnate; pinnae petiolulate, pinnules ovate, 1–5 × 0.5–3 cm; ultimate segments linear, 3–7 × 1–3 mm. Umbels ca. 5 cm across; bracts 1–2, linear, 1–1.5 cm, narrowly scarious-margined; rays 10–13, 2–3 cm, subunequal, slightly scabrous; bracteoles 5–8, linear, 0.5–1 cm. Petals obovate. Stylopodium low-conic. Fruit oblong to ellipsoid, ca. 5 × 4 mm, dorsally compressed; dorsal ribs prominent, narrowly winged, lateral ribs broad-membranous-winged; vittae small, 1 in each furrow, 4 on commissure. Fl. and fr. Aug–Oct. n = 22.

Mountain ravines, stream banks; ca. 1000 m. Anhui, Jiangxi [Japan, Russia; North America].