All Floras      Advanced Search
FOC Vol. 20-21 Page 594, 606, 609 Login | eFloras Home | Help
FOC | Family List | FOC Vol. 20-21 | Asteraceae | Aster

57. Aster morrisonensis Hayata, Icon. Pl. Formosan. 8: 48. 1919.

玉山紫菀 yu shan zi wan

Herbs, perennial, 10-40 cm tall or more, rhizomatous, stoloniferous. Stems erect, simple, sometimes branched in upper part; branches ascending, strigillose, densely leafy. Leaves cauline, slightly reduced upward, abaxially pale green, adaxially green, shiny, both surfaces scabrous, minutely stipitate glandular in pits, margin coarsely 1-5-serrate, scabrous, abaxially prominently 3-veined, apex acuminate, mucronate; lowest leaves withered by anthesis, long winged petiolate (petiole to 5.5 cm); blade spatulate to oblanceolate or lanceolate, 1.3-2.5 cm, base attenuate; lower to upper leaves shortly petiolate; blade lanceolate, 2-4 × 0.7-0.9 cm, base attenuate; synflorescence leaves shortly petiolate, lanceolate, margin entire. Capitula many in terminal paniculiform-corymbiform synflorescences (not measurable on specimen); peduncles 10-50 mm or longer, strigillose; bracts lanceolate, entire. Involucres campanulate to hemispheric, 3-5 mm; phyllaries 3-seriate, unequal, green distally, 0.7-0.9 mm wide, apically minutely glandular, margin narrowly scarious, erose, purplish, ciliate, midvein more pronounced distally, ± translucent, apex rounded, erose, purplish, ciliate; outer phyllaries broadly ovate, ca. 1.5 mm; middle phyllaries oblong, 2-3 mm, base hardened; inner phyllaries oblong, 4-5 mm. Ray florets 8-20, white, tube hairy, lamina 3.5-5(-7) × 1-1.5 mm, eglandular; disk florets yellow, 4-5.5(-6) mm, tube base flared, tube apex and limb base hairy, limb campanulate, lobes spreading, lanceolate, ca. 2 mm, glabrous, eglandular. Achenes mottled purple, oblong, slightly compressed, 1.8-2.5 mm, strigillose, eglandular, 2-ribbed. Pappus 3-seriate, white or (innermost) ± reddish; outermost bristles few, 0.5-0.7 mm; inner bristles ca. 4 mm, acute; innermost bristles ca. 4.2 mm, weakly clavate. Fl. Jul-Sep.

● Alpine areas; 3000-3700 m. Taiwan.


Flora of China @
Browse by
Advanced Search

Flora of China Home




 |  eFlora Home |  People Search  |  Help  |  ActKey  |  Hu Cards  |  Glossary  |