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

3. Eschenbachia leucantha (D. Don) Brouillet, Fl. China. 20-21: 556. 2011.

粘毛白酒草 nian mao bai jiu cao

Basionym: Erigeron leucanthus D. Don, Prodr. Fl. Nepal. 171. 1825 ["leucanthum"]; Blumea conyzoides H. Léveillé & Vaniot; Conyza leucantha (D. Don) Ludlow & P. H. Raven; C. viscidula Wallich ex Candolle; Vernonia ampla Vaniot (1903), not O. Hoffmann (1901).

Herbs, annual, 40-200 cm tall, sometimes bushy; taproot fusiform, woody, fibrous rooted. Stems erect, branched, upper branches divaricate, striate, densely villous, densely short-stipitate viscid glandular, densely leafy. Leaves: lower withered and fallen at anthesis; mid cauline shortly petiolate or subsessile, not clasping, blade elliptic-oblong to ovate or lanceolate, 7-14 × 2.5-3.5 cm, surfaces ± densely sessile glandular, abaxially villosulous, adaxially scabrous, lateral veins 4-6-paired, abaxially prominent, base cuneate to attenuate, margin serrate to serrulate, teeth mucronulate, apex acuminate; upper blade lanceolate, reduced upward; uppermost (on synflorescence branches) sessile, 3-5 cm, margin entire or serrulate. Capitula 3.1-7.9 mm in diam., numerous, in broadly glomerate-paniculiform synflorescences; peduncles slender, 3-9 mm, densely long-stipitate glandular and/or villous. Involucre campanulate, 3.1-4 × 3.5-6.2 mm; phyllaries 3- or 4-seriate, outer green, linear-lanceolate, short, abaxially ± densely stipitate glandular and/or villous, margin sometimes narrowly scarious, apex acuminate, inner linear-lanceolate to linear-oblong, green along midvein, margin scarious, sometimes purplish, apex acuminate, often purplish. Ray florets white, reduced to tube, filiform, 0.3-0.65 mm, 1/5 or less as long as pinkish style, lacerate at apex, glabrous; disk florets 6-9, yellow becoming reddish, funnelform, 3.5-4.1 mm, tube ca. 2.2 mm, sparsely hairy above, limb ca. 3.9 mm, lobes lanceolate, ca. 0.6 mm. Achenes straw-colored to pale brown, lanceolate, compressed, 0.4-0.6 mm, sparsely strigillose. Pappus 1-seriate, basally connate in a ring, deciduous, yellowish or cinnamon to pale reddish, bristles 10-15, 3.5-4.5 mm. Fl. Sep-Dec.

Open slopes, ravines, field margins, dry margins of woods, thickets, roadsides, wastelands; 200-1800 m. Fujian, Guangdong, Guangxi, Guizhou, Hainan, Taiwan, Yunnan [Bangladesh, Bhutan, Cambodia, India, Indonesia, Laos, Malaysia, Myanmar, Philippines, Nepal, Thailand, Vietnam; Australia].


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