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

104. Aster platylepis Y. L. Chen, Kew Bull. 39: 159. 1984.

阔苞紫菀 kuo bao zi wan

Doronicum latisquamatum C. E. C. Fischer, Bull. Misc. Inform. Kew 1937: 98. 1937, not Aster latisquamatus (Maximowicz) Handel-Mazzetti (1938).

Herbs, perennial, 20-30 cm tall. Stems erect, slender, brown or purplish, gray hairy. Leaves: basal withered at anthesis (not seen); cauline leaves oblong or somewhat obliquely ovate, 1.6-4.2 × 0.8-2.2 cm, membranous, abaxially pubescent, adaxially hispidulous, eglandular, base subcordate or rounded, clasping, margin ± sinuate-crenate, 5-7-veined from base, apex obtuse. Capitula terminal, solitary, 3.5-4 cm in diam. Involucres campanulate; phyllaries 2- or 3-seriate, abaxially hispidulous; outer phyllaries lanceolate to ovate-lanceolate, 13-19 × 5-7 mm, margin purplish, apex subacute, purplish; innermost phyllaries usually shorter, narrower. Ray florets ?30-60, 1-3-seriate, purplish, tube ca. 2 mm, lamina ca. 14 × 0.7 mm; disk florets yellow-brown, ca. 4.5 mm, lobes triangular, short, acute. Achenes narrowly oblong ?when mature, sparsely hairy, ?winged, 2-ribbed. Pappus longer than tube of disk florets. Fl. Aug.

Rocky soils; 3000-4000 m. S Xizang (Tsampo Lake) [India].

No specimens of Aster platylepis were seen by one of us (Brouillet).


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