小头橐吾 xiao tou tuo wu

Cremanthodium microcephalum Handel-Mazzetti, Anz. Akad. Wiss. Wien, Math.-Naturwiss. Kl. 57: 174. 1920.

Stems 1 or 2, erect, often purple, to 24 cm tall, 2-4 mm in diam. at base, proximally glabrous, distally shortly brown pilose. Basal leaves petiolate; petiole to 21.5 cm, slender, glabrous, base narrowly sheathed; leaf blade abaxially pale purple, adaxially green, reniform, 1.5-4.5 × 4.5-9.5 cm, abaxially shortly pilose only along veins, adaxially glabrous, palmately veined, with conspicuous reticulate veins, margin regularly sharply dentate, apex rounded or retuse; sinus narrow, 1/3(-1/2) as long as leaf blade, basal lobes orbicular. Stem leaves 1 or 2, smaller, reniform; petiole 11-15 cm, base enlarged sheathed; sheath to 3.5 cm, as long as broad or narrower. Capitula 1-4, in corymb or solitary; leaflike bract lanceolate, as long as peduncles; supplementary bracts 3 or 4, subulate, shorter than involucre; peduncles divaricately branched, to 1 cm, densely shortly brown pilose. Involucre broadly campanulate or hemispheric, ca. 8 mm, to 2 cm wide, outside glabrous or shortly white pilose; phyllaries ca. 15, in 2 rows, dark brown, elliptic, 2-3 mm wide, margin shallowly denticulate, apex obtuse or acute; inner phyllaries membranous at margin. Florets numerous, yellow, all tubular, 5-6 mm; tube ca. 2 mm. Achenes ca. 5 mm. Pappus white, as long as tubular corolla. Fl. and fr. Jul-Aug.

● Alpine grasslands, grassy slopes, rocky slopes; 3700-4800 m. NW Yunnan.