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Acronema yadongense S. L. Liou
亚东丝瓣芹
Description from Flora of China
Plants 35–45 cm. Rhizome tuberous, ovoid-globose, 5–6 mm across. Stem thinly ribbed, little-branched. Lower stem leaves petiolate, petioles 5–13 cm, sheaths small; leaf blade broad-triangular, 5–6 × 4–5 cm, 2–3-pinnate; ultimate segments linear, 0.5–2.5 × 1–1.5 mm. Umbels 3–5 cm across; peduncles 1.2–3 cm; bracts absent; rays 9–12, 1.5–3 cm, scabrous distally; bracteoles absent or 1–2, linear, small; umbellules ca. 5 mm across, 8–17-flowered; pedicels 2–3 mm, unequal, slender. Calyx teeth obsolete. Petals white, obovate or elliptic, 1–1.2 × ca. 1 mm; apex acute. Stylopodium purple-black. Young fruit, oblong-elliptic ca. 1.8 × 1.2 mm (mature fruit unknown). Fl. Sep.
This incompletely known taxon is recorded only from a few collections.
Forests, grassy slopes; ca. 3700 m. S Xizang (Yadong).
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