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

62. Aster sinoangustifolius Brouillet, Semple & Y. L. Chen, Fl. China. 20-21: 607. 2011.

狭叶裸菀 xia ye luo wan

Replaced synonym: Aster angustifolius C. C. Chang, Bull. Fan Mem. Inst. Biol., Bot. 6: 43. 1935, not Aster angustifolius Jacquin, Pl. Hort. Schoenbr. 3: 63. 1798; Asteromoea angustifolia Handel-Mazzetti; Gymnaster angustifolius Y. Ling; Kalimeris angustifolia S. Y. Hu; Miyamayomena angustifolia Y. L. Chen.

Herbs, perennial, 30-50 cm tall, rhizomatous. Stems erect, simple, sometimes flexuous, sometimes branched in upper part, finely striate, glabrous or glabrate, sparsely minutely stipitate glandular below leaves. Leaves cauline, gradually reduced upward, abaxially pale green (spongelike), adaxially green, abaxially sparsely scabridulous, minutely stipitate glandular in pits, adaxially scabridulous, margin remotely serrate to serrulate, revolute, scabridulous, midvein prominent abaxially, apex acuminate, mucronate; lowest leaves withered by anthesis (not seen); lower to upper leaves winged petiolate (petiole to 2 cm); blade oblanceolate to narrowly lanceolate, (6-)10-13(-15) × 0.5-1.9 cm, base attenuate; synflorescence leaves sessile, linear-lanceolate, 2-4 × 0.3-0.4 cm, base cuneate, margin entire, grading upward into phyllaries. Capitula 1-3, terminal or axillary, overall forming corymbiform synflorescences; peduncles 60-90 mm, strigillose, minutely stipitate glandular; bracts linear-lanceolate, entire. Involucres hemispheric, 5-6 mm; phyllaries 3- or 4-seriate, unequal, green distally, glabrous, sometimes apically minutely stipitate glandular, margin scarious, erose, sometimes purplish, ciliate, midvein ± translucent, sometimes multiveined, apex rounded, erose, purplish, ciliate; outer phyllaries oblong, 3-4 × 1.2-2 mm; middle phyllaries obovate, 5-5.5 × 2-2.5 mm, base hardened; inner phyllaries oblanceolate, 6-7 × 1.1-1.5 mm. Ray florets 15-20, purple to lavender, veins prominent, tube and lamina base sparsely minutely stipitate glandular, lamina 6-7 × ca. 1.5 mm, glabrous; disk florets yellow, ca. 3.5 mm, veins prominent, tube base flared, tube and limb base glabrous, minutely stipitate glandular, limb broadly campanulate, ca. 2.5 mm, lobes spreading, narrowly triangular, 0.7-1 mm, glabrous, tip sparsely minutely stipitate glandular. Achenes narrowly obovoid, ca. 2.1 mm, glabrous, 4-6-ribbed. Pappus absent. Fl. and fr. Jul-Oct.

● Riverbanks in valleys and forest margins; ca. 600 m. Fujian, Zhejiang.


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