箭叶火石花 jian ye huo shi hua

Chaptalia maxima D. Don, Prodr. Fl. Nepal. 166. 1825; Berniera nepalensis Candolle, nom. illeg. superfl.; Gerbera macrophylla Wallich ex C. B. Clarke, nom. illeg. superfl.; G. nepalensis Schultz Bipontinus, nom. illeg. superfl.

Herbs, perennial; rhizome lanuginous. Leaves in basal rosette; petiole 19-30 cm, lanuginous; leaf blade ovate-lanceolate, 11-20 × 5-9 cm, sometimes with few small lobes at base, papery, abaxially densely white lanuginous, adaxially glabrous, base cordate-sagittate, margin irregularly denticulate, apex acuminate. Scapes 1 or 2, ca. 43 cm or longer, ebracteate, lanuginous. Capitula solitary, terminal, radiate, 2.5-3 cm in diam.; involucre broadly campanulate; phyllaries ca. 4-seriate, outer phyllaries linear-subulate, ca. 1 cm, inner phyllaries linear, ca. 2 cm. Marginal female florets bilabiate, tubular, corolla ca. 8 mm, inner lips oblong, ca. 4 mm; central bisexual florets many, bilabiate, tubular, corolla ca. 8 mm. Achenes (immature) ca. 8 mm, subglabrous, ribbed; pappus whitish tawny, ca. 1 cm. Fl. Aug-Sep.

Forest margins; ca. 2300 m. Xizang [Bhutan, India, Nepal, Pakistan, Thailand].