毛叶橐吾 mao ye tuo wu

Stem erect, to 100 cm tall, 5-6 mm in diam. at base, proximally glabrous, distally shortly pilose. Basal leaves petiolate; petiole 20-29 cm, slender, glabrous, base sheathed; leaf blade reniform, 4.5-5.5 × 6-10 cm, abaxially densely shortly white pilose, adaxially glabrous, palmately veined, margin triangular-dentate, apex obtuse or rounded; sinus ca. 3/5 as long as leaf blade, broad. Stem leaves 2 or 3, petiolate and sheathed; sheath enlarged, 4-8 × 2.5-4 cm, conspicuously parallel-veined and shortly white pilose, margin entire; petiole 1-9 cm, slender; leaf blade reniform, smaller than basal leaves, abaxially shortly white pilose, adaxially glabrous, apex acute. Synflorescence racemose, 30-35 cm, with 1 or 2 branches at base; leaflike bracts ovate-lanceolate, 2.5-4 × 1-1.3 cm, denticulate, smaller distally, linear; peduncles 3-35 mm, shortly pilose. Capitula numerous; supplementary bracts linear. Involucre campanulate, 6-9 × 5-8 mm, outside shortly pilose, base subtruncate; phyllaries 12 or 13, in 2 rows, oblong, 1.5-2.5 mm wide, margin brown membranous, apex acute or acuminate. Ray florets yellow; lamina linear-oblong, 8-9 × ca. 1 mm; tube ca. 4 mm. Tubular florets numerous, 7-8 mm; limb campanulate, as long as tube. Achenes cylindric, ca. 5 mm. Pappus pale yellowish brown, as long as tubular corolla. Fl. and fr. Jul-Aug.

● Alpine scrub; ca. 3600 m. Xizang (Bomi).