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

14. Eupatorium tashiroi Hayata, J. Coll. Sci. Imp. Univ. Tokyo. 18(8): 9. 1904.

木泽兰 mu ze lan

Eupatorium clematideum (Wallich ex Candolle) Schultz Bipontinus var. gracillimum (Hayata) C. I Peng & S. W. Chung; E. gracillimum Hayata; E. tashiroi f. gracillimum (Hayata) Sasaki; E. tashiroi var. gracillimum (Hayata) Yamamoto.

Shrubs, subshrubs, or herbs, scandent. Stems terete, slender, glabrous; branches divaricate, flexuous. Leaves opposite; petiole 4-6 mm; blade 4-8 × 2-3 cm, thin, 3-veined, base obtuse or rounded, margin dentate, apex acuminate. Synflorescence a lax corymb. Capitula 5-flowered, ca. 1 cm; peduncle 1-1.5 cm, pubescent; involucre narrowly campanulate; phyllaries narrowly lanceolate, 1- or 2-seriate, outer phyllaries ca. 1.5 mm, inner phyllaries ca. 5 mm, margin scarious; corollas white, ca. 4 mm. Achenes black, cylindric, ca. 2.5 mm, 5-ribbed, glabrous; pappus 1-seriate, 3-4 mm, barbellate. 2n = 20*.

● Mountains. C and S Taiwan.

Eupatorium clematideum (Wallich ex Candolle) Schultz Bipontinus (= E. squamosum D. Don) was recognized in Fl. Taiwan, ed. 2 (4: 953. 1998); however, E. clematideum is a native of Nepal, and the plants in Taiwan are actually E. tashiroi.


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