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FOC | Family List | FOC Vol. 14 | Apiaceae | Acronema

18. Acronema hookeri (C. B. Clarke) H. Wolff in Engler, Pflanzenr. 90(IV. 228): 323. 1927.

锡金丝瓣芹 xi jin si ban qin

Pimpinella hookeri C. B. Clarke in J. D. Hooker, Fl. Brit. India 2: 686. 1879; Carum hookeri (C. B. Clarke) Franchet.

Plants 30–80 cm. Root tuberous, globose, 8–10 × 5–8 mm across. Stem ribbed and branched, branches elongating. Basal petioles 4–8 cm, sheaths narrow; blade ovate-triangular to long-ovate-triangular, 2-pinnate; proximal pinnae short-petiolulate; ultimate segments ovate, obliquely ovate to broad-ovate, 1–2 × 7–13 mm, 3-lobed or irregularly sparsely serrulate. Umbels 2–5 cm across, many in a lax, raceme-like inflorescence; peduncles 4.5–8 cm; bracts and bracteoles absent; rays 3–6, 2.5–6 cm, slightly unequal; umbellules 8–15 mm across, 3–7-flowered; pedicels 5–15 mm, slender; rays and pedicels elongating and spreading in fruit. Calyx teeth obsolete. Petals white, pink or dark red, lanceolate or oblong-lanceolate, ca. 4 × 0.6 mm; apex filiform, 2–3 mm, densely papillate. Fruit ovoid globose, ca. 2 × 2 mm, base subcordate; vittae 2–3 in the furrows, 3–4 on commissure. Fl. Aug, fr. Sep–Oct.

Forests, riversides, streamsides; 2100–3200 m. S Xizang, NW Yunnan [Bhutan, NE India, E Nepal, Sikkim].

This widespread, quite variable species often grows in mixed populations with Acronema graminifolium, which some authors consider to be a variety of A. hookeri (as originally described as Pimpinella hookeri var. graminifolia).


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