木里白酒草 mu li bai jiu cao

Basionym: Conyza muliensis Y. L. Chen, Fl. Reipubl. Popularis Sin. 74: 361. 1985.

Herbs, perennial, 3-21 cm tall, sometimes caespitose, collar surrounded by leaf base remains; caudex woody, ascending, branched, taprooted. Stems solitary or 2-4, slender, erect, simple, gray-white long strigose. Leaves: surfaces moderately long strigose, glabrescent, margin often serrulate distally, teeth mucronulate, rarely entire, strigose-ciliate; basal in rosette, present at anthesis, long petiolate, petiole narrowly winged, petiole base widened, clasping, blade oblanceolate to spatulate, 2-5 × 0.3-0.5 cm, base cuneate-attenuate, apex obtuse to acute, mucronate; cauline scattered, lowest petiolate, upper sessile or subsessile, not clasping, lower blade linear-oblanceolate to linear, 2-3.5 × 0.1-0.3 cm, base attenuate, margin sparsely serrulate or subentire, apex acute; upper blade gradually reduced, linear, margin entire or with 1 or 2 inconspicuous teeth. Capitula 6-7 mm in diam., usually 3-6 in corymbiform synflorescences, rarely solitary; peduncles slender, 3-8 mm. Involucre campanulate, ca. 4 × 6-8 mm; phyllaries 3-seriate, narrowly oblong or lanceolate, abaxially sparsely strigose, margin ± broadly scarious, erose-lacerate, apex acuminate or ± obtuse, outer ca. 1/2 as long as inner. Ray floret corolla reduced to tube, filiform, 1-1.2 mm, ca. 1/2 as long as style, apex hairy; disk florets 13-23, yellowish, narrowly funnelform, 2.5-3 mm, tube 1-1.5 mm, lobes lanceolate, ca. 0.5 mm, apex hairy. Achenes oblong, 1-1.2 mm, sparsely strigose, glandular. Pappus dirty to pinkish white, bristles ca. 10, 2.5-3.2 mm. Fl. Jun.

● Sandy riverbanks; ca. 2200 m. SW Sichuan (Muli).