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FOC Vol. 20-21 Page 576, 577, 579 Login | eFloras Home | Help
FOC | Family List | FOC Vol. 20-21 | Asteraceae | Aster

7. Aster polius C. K. Schneider in Sargent, Pl. Wilson. 3: 459. 1917.

灰毛紫菀 hui mao zi wan

Shrubs, 0.6-1.2 m tall. Stems erect, multibranched; old branches erect, bark grayish brown, branched, striate; current- and second-year branches red-purple, leaf scars and axillary buds prominent, moderately to densely curly hairy, glabrescent. Leaves petiolate (petiole 1-2 mm); blade adaxially green, narrowly ovate to elliptic, 1.5-3.5 × 0.6-1.4 cm, subleathery, abaxially white tomentose, adaxially scabridulous, base cuneate, margin strongly revolute, entire, finely ciliate, apex obtuse or acute, mucronulate. Capitula terminal on current-year branches, 3-20 in corymbiform synflorescences, up to ca. 1.5 cm in diam.; peduncles slender, 5-11 mm; bracts linear, moderately tomentulose, sparsely minutely stipitate glandular. Involucres campanulate, 4-5 mm; phyllaries 3-seriate, unequal, apically green, abaxially glabrous, sparsely minutely stipitate glandular, midvein slightly swollen, distally translucent, apex acute, purplish tipped; outer phyllaries ovate, ca. 1 mm, margin narrowly scarious, erose, ciliate; inner phyllaries unequal, lanceolate, 3-4 × ca. 1 mm, margin scarious, erose, sometimes ciliate. Ray florets 8-10, white, tinged red, tube sparsely hairy, lamina 4-5 × ca. 1.5 mm, glabrous, eglandular; disk florets yellow, ca. 3.5 mm, limb narrowly campanulate, 1.5-2 mm, sparsely minutely hairy basally, eglandular, lobes spreading or recurved, narrowly triangular, 1-1.2 mm. Achenes obovoid, (immature) ca. 2 mm, sparsely strigillose, darkly 2-6-veined. Pappus 3-seriate, straw-colored; outer series of scales 0.5-0.7 mm; inner bristles ca. 2.5 mm, acute; innermost bristles 3-3.5 mm, clavate. Fl. Jul.

● Open shrubs; 2000-2700 m. W Sichuan (Maowen, Xiaojin).


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