中国伞形科植物在线

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Acronema chienii/条叶丝瓣芹

General description: 

Plants 50–75 cm. Rhizome stout, conic, ca. 6 × 1 cm. Stem purplish, branched. Lower leaves petiolate, petioles 10–20 cm, sheaths ovate; blade, 8–13 × 10–15 cm, 2–5-pinnate; ultimate segments linear or linear-lanceolate, 0.3–6.5 × 1–2.5 mm. Um-bels 6–8 cm across; peduncles 4–11 cm; bracts and bracteoles usually absent; rays 10–18, 1.5–6 cm, unequal, 4-angled; um-bellules 8–12 mm across, 12–16-flowered; pedicels ca. 5 mm, slender. Calyx teeth obsolete or nearly so. Petals white, linear or narrowly spatulate, 1.5–3 × 0.1–0.4 mm; apex acute or obtuse-acute. Fruit broad-ovoid, ca. 1.8 × 1.5 mm, base cordate; vittae 3 in each furrow, 2 on commissure. Fl. Jun–Jul, fr. Aug–Sep.

Distribution: 

SW Si-chuan, SE Xizang, NW Yunnan.

Habitat: 

Forests, forest margins, river banks; 2500–4800 m.

周日, 2014-08-31 13:45 -- admin
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Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith