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

11. Pertya monocephala W. W. Smith, Notes Roy. Bot. Gard. Edinburgh. 8: 212. 1914.

单头帚菊 dan tou zhou ju

Shrubs, 30-80 cm tall. Leaves on long shoots alternate, deciduous in flowering seasons, petiole very short, marcescent, leaf blade not seen; leaves on branchlets tufted, 4-6, rarely 9, sessile, leaf blade linear-lanceolate, 5-6 × 1-2 mm, abaxially sparsely arachnoid lanate or subglabrous, adaxially white sericeous, base obtuse, margin entire, strongly revolute, apex mucronate. Capitula few, solitary, terminal on branches, ca. 2.5 cm, 7-11-flowered; peduncle 0.5-2.5 cm; involucre subcampanulate, ca. 2 × 1.5 cm; phyllaries ca. 6-seriate, outer phyllaries ovate, 3-5 mm, inner lanceolate or oblong-lanceolate, ca. 2 cm. Florets bisexual, corollas tubular, ca. 2 cm, deeply 5-lobed, lobes linear. Achenes terete, ca. 8 mm, densely white villous; pappus snow white, 1.3-1.5 cm. Fl. Jan-Feb.

● Dry valleys; 1900-3000 m. Xizang, Yunnan.


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