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

5. Eschenbachia perennis (Handel-Mazzetti) Brouillet, Fl. China. 20-21: 557. 2011.

宿根白酒草 su gen bai jiu cao

Basionym: Conyza perennis Handel-Mazzetti, Notizbl. Bot. Gart. Berlin-Dahlem 13: 630. 1937.

Herbs, perennial, 25-40 cm tall, collar surrounded by marcescent leaf bases; rhizomes thick, woody, erect or ascending. Stems solitary, erect, simple, striate, white hirsute, often also strigillose. Leaves: basal rosulate, present at anthesis; basal and lower petiolate, petiole narrowly winged, usually 1/2 as long as blade, densely hirsute and hirsute-ciliate, petiole base clasping or subclasping, blade ovate or elliptic-ovate to lanceolate or oblanceolate, 5-9 × 1.5-2.5 cm, surfaces sparsely hirsute, base attenuate, margin coarsely serrate, hirsute-ciliate, lateral veins 3- or 4-paired, apex acute to obtuse; upper shortly petiolate or sessile, blade oblong-lanceolate to lanceolate, gradually reduced; uppermost base almost rounded, margin entire, apex acuminate. Capitula 4-5 mm in diam., numerous, usually in dense cymiform or partly glomerate synflorescences; peduncles 5-6 mm; bracteole 1, lanceolate, villous to strigillose or glabrate. Involucre campanulate, ca. 4 mm in diam.; phyllaries 3-seriate, lanceolate to linear-lanceolate, outer ca. 1/2 as long as inner, abaxially strigillose, margin narrowly scarious, sometimes erose-fimbriate apically, apex acuminate, inner 2.5-3.5 mm. Ray floret corolla reduced to tube, filiform, 1-1.5 mm, ca. 1/2 as long as style, apex hairy; disk florets ca. 23, ca. 3 mm, lobes lanceolate, glandular. Achenes oblong, ca. 0.7 mm, sparsely pilose to glabrate. Pappus white, almost equaling disk corollas. Fl. Feb-Apr.

● Thickets on sandy ground by riverbanks; ca. 1600 m. SW Guizhou, S Yunnan.


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