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FOC | Family List | FOC Vol. 20-21 | Asteraceae | Eupatorium

12. Eupatorium omeiense Y. Ling & C. Shih, Fl. Reipubl. Popularis Sin. 74: 354. 1985.

峨眉泽兰 e mei ze lan

Herbs, perennial. Rhizomes robust, with numerous adventive roots. Stems erect, 1-2 m tall, multibranched; branches ascending, slender; synflorescence branched, corymbose in upper part. Stems and branches pulverous dirty-white puberulent; synflorescence branches and peduncles rather densely hairy, sparsely hairy or glabrous in lower part by anthesis. Leaves opposite, thickly papery; median stem leaves abaxially pale green, adaxially dark green, elliptic or ovate-oblong, 6-9 × 2-3.5 cm, both surfaces sparsely white puberulent and with yellow glands, pinnately veined, lateral veins 4- or 5-paired, base cuneate, margin subentire or repand-crenate, apex acuminate; upper leaves homomorphic with middle leaves, but smaller, basal leaves withered by anthesis. Synflorescence of terminal compound corymbs. Capitula numerous, 5-flowered; involucre campanulate, ca. 4 mm; phyllaries 2- or 3-seriate, imbricate; outer phyllaries short, elliptic, ca. 1 mm; median and inner phyllaries gradually longer, elliptic, ca. 4 mm, puberulent, without glands, apex rounded; corollas white, ca. 4 mm, sparsely yellow glandular. Achenes blackish brown, subelliptic, 5-ribbed, glabrous and eglandular; pappus white, ca. 4 mm. Fl. and fr. Sep-Nov.

● Roadsides on hill slopes; 700-900 m. Sichuan (Emei Shan, Tianquan).


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