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

4. Eschenbachia japonica (Thunberg) J. Koster, Blumea. 7: 290. 1952.

白酒草 bai jiu cao

Erigeron japonicus Thunberg in Murray, Syst. Veg., ed. 14, 754. 1784 ["japonicum"]; Blumea globata Vaniot; B. subcapitata Matsumura & Hayata (1908), not Candolle (1836); Conyza asteroides Wallich ex Candolle (1836), not Linnaeus (1753); C. japonica (Thunberg) Lessing; C. multicaulis Candolle; C. stricta Wallich ex Candolle (1836), not Willdenow (1803); C. veronicifolia Wallich ex Candolle.

Herbs, annual or biennial, (15-)20-45+ cm tall; taproot simple, fusiform. Stems erect, branched from base or middle, sometimes simple, branches ascending or spreading, striate, white scabrous (below) to villous, more densely so upward, sometimes ± glabrescent below, eglandular. Leaves usually crowded in lower part, basal in rosette, shortly to long petiolate, petiole ± narrowly winged, blade elliptic or obovate to spatulate, 6-7 cm, base attenuate to rounded, apex rounded to obtuse; lower long petiolate, petiole often broadly winged upward, blade oblong or elliptic-oblong or oblanceolate, 3-13 cm, surfaces white villous, lateral veins 4- or 5-paired, abaxially prominent, base cuneate or attenuate, margin ± coarsely serrate, teeth mucronulate, strigose, apex rounded to obtuse or acute; mid dispersed, sessile, blade oblanceolate-oblong or oblong-lanceolate to lanceolate, 3.5-5 × 0.5-1.5 cm, base rounded, subclasping, margin serrate to serrulate, apex obtuse to acute; upper reduced, blade lanceolate or linear-lanceolate, surfaces strigose, eglandular, adaxially scabrous (and sometimes also abaxially), margin entire to sparsely serrulate. Capitula numerous, 7.5-11 mm in diam., usually crowded in glomerate or dense corymbiform synflorescences; peduncles slender, 4-6 mm, densely villous. Involucre campanulate to hemispheric-campanulate, 4-5.5 × 7.5-10 mm; phyllaries 3- or 4-seriate, abaxially villous, outer shorter, obovate to ovate-lanceolate, 2-2.9 mm, apex obtuse, inner lanceolate to linear, 3.8-5 mm, margin ± widely scarious, erose, often ± purplish (notably apically), apex acute or acuminate. Ray florets white becoming purplish, corolla filiform, 1.1-2 mm, 1/2 or less as long as style, apically ciliate; disk florets 15 or 16, pale yellow becoming reddish, 4-4.1 mm, tube ca. 2.25 mm, hairy distally, limb ca. 1.75 mm, lobes lanceolate, ca. 0.5 mm, apically hairy. Achenes straw-colored to pale brown, oblong, 1-1.2 mm, sparsely strigillose. Pappus basally connate in a ring, deciduous, pinkish white or cinnamon to reddish, bristles 10-14, 3.3-4.5 mm. Fl. Mar-Sep.

Forest margins, grassy slopes, dry meadows, exposed slopes, field margins, roadsides, gardens; 400-2500 m. Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hunan, Jiangsu, Jiangxi, Sichuan, Taiwan, Xizang, Yunnan, Zhejiang [Afghanistan, Bhutan, India, Japan, Malaysia, Myanmar, Nepal, Pakistan, Thailand, Vietnam].


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