白舌紫菀 bai she zi wan

Diplopappus baccharoides Bentham, London J. Bot. 1: 487. 1842; Aster brevipes Bentham.

Low shrubs or perennial herbs, 15-150 cm tall, basally woody, rhizomatous. Stems erect, branched or sometimes simple (herb), finely striate, densely strigose, minutely stipitate glandular. Leaves cauline, slightly reduced upward, abaxially pale green, moderately strigose, moderately to densely minutely stipitate glandular, adaxially green, densely scabridulous, minutely stipitate glandular, margin serrate to serrulate (teeth mucronulate), scabrous, midvein prominent abaxially, apex acute, mucronate; lowest leaves withered by anthesis (herb), lower to upper leaves shortly winged petiolate; blade narrowly ovate to lanceolate, 1.3-7.5 × 0.4-1.8 cm, base attenuate to rounded; synflorescence leaves shortly petiolate, broadly lanceolate to oblanceolate, 0.7-3 × 0.3-0.8 cm, base cuneate to rounded, margin entire. Capitula numerous, in terminal or axillary corymbiform to paniculiform synflorescences, 1.5-2 cm in diam.; peduncles 2-8 mm, strigillose; bracts oblanceolate, margin entire, becoming phyllary-like distally. Involucres campanulate, 6-7 × ca. 7 mm; phyllaries 5-7-seriate, unequal, narrowly green apically, sometimes distally purplish, abaxially moderately to densely strigose, more so distally, sparsely to moderately minutely stipitate glandular, margin scarious (more broadly so in inner phyllaries), erose, villous-ciliate, midvein somewhat more pronounced distally, ± translucent, sometimes 3-veined, apex acute to obtuse or rounded, erose, sometimes mucro or tip purplish, ciliate; outer phyllaries broadly lanceolate to lanceolate, 1.5-2 × 0.7-1 mm; middle phyllaries lanceolate-oblong, 3-5 × 1-1.2 mm, base ± hardened; inner phyllaries oblong, 6-7 × 1-1.5 mm. Ray florets 8-18, white, lamina ca. 6 × 1.2-1.7 mm, glabrous, eglandular; disk florets yellow, 4.5-6.5 mm, tube base flared (veins marked), limb campanulate, 2.5-3.5 mm, glabrous, minutely stipitate glandular proximally, lobes spreading, tip recurved, narrowly triangular, 1.2-2 mm, glabrous, eglandular. Achenes dark purple, oblong, slightly compressed, ca. 3.5 mm, strigillose, apically sparsely minutely stipitate glandular, 2-ribbed. Pappus 4-seriate, white, of slender bristles; outermost bristles 1-3, 0.5-1.2 mm; outer bristles absent or 1, ca. 3 mm; inner bristles 4-5 mm, acute; innermost bristles 5-6 mm, clavate. Fl. Jul-Oct, fr. Aug-Nov.

● Slopes, grasslands, shrublands, sandy areas, sea bluffs, roadsides; sea level to 1000 m. Fujian, Guangdong, E Guangxi, Hunan, Jiangxi, Zhejiang.

Aster baccharoides is closely related to A. turbinatus but differs in having basally woody stems, narrow leaves, small capitula and florets, and white ray floret lamina.