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Flora of Taiwan | Family List | Compositae | Dendranthema

Dendranthema arisanense (Hayata) Y. Ling & C. Shih, Bull. Bot. Lab. N. E. Forest. Inst. Harbin. 6: 7. 1980; Shih & Fu, Fl. Reipubl. Popul. Sin. 76(1): 43. 1983.

阿里山油菊

Dendranthema arisanense

Credit: HAST

  • Chrysanthemum arisanense Hayata

    Plants with creeping rhizomes. Stems ascending, branching, densely tomentose, soon glabrate, leafy toward top. Median cauline leaves chartaceous, petiolate, broadly ovate, 3-7 cm long, base slightly cordate or truncate, base abruptly narrowed into petiole, green and minutely pilose above, grayish beneath, margins bipinnatipartite or pinnatifid, segments of 2 pairs, serrate; petioles 5-25 mm long. Heads 12 mm across, subumbellately arranged, shortly pedunculate. Involucres hemispheric, 5×8 mm, bracts 3-seriate, outer shorter, oblong, inner ovate. Ray florets: corolla yellow, 5.5-7×1.5-2 mm. Disc florets: corolla yellow, 3 mm long, 5-fid. Achenes 1.5 mm long, slightly curved. Chromosome number, 2n = 18 (Peng & Hsu, 1978).

    MIAOLI: Taian, Wang 1754; Kuanwu, Peng 9413. TAICHUNG: Szuyuan, Liu 248. NANTOU: Chunda Forest Road, Chen 32; Tzuchung, Peng 11414. CHIAYI: Alishan, Peng 17073; Tatachiaanpu, Leu 345. TAITUNG: Hsiangyang, Peng 11836. HUALIEN: Yenhai Forest Road, Wang 390; Tayuling, Peng 17050.

    Endemic; on mountains at 1,600 to 3,200 m, open rocky slope, roadsides, at forest margin, and in meadows.


     

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