须弥千里光 xu mi qian li guang

Cacalia penninervis H. Koyama; Koyamacalia penninervis (H. Koyama) H. Robinson & Brettell.

Herbs, perennial, with thick woody rhizome. Stem solitary or few fasciculate, erect, 50-90 cm tall, rather woody at base, sparsely arachnoid and shortly crisped-pubescent, not branched below synflorescence. Radical and lower stem leaves withered and shed by anthesis; median stem leaves long petiolate; petiole 3-6 cm, not winged; blade ovate or ovate-oblong, 10-13 × 4-5.5 cm, papery, abaxially densely white arachnoid-tomentose, adaxially at first sparsely arachnoid and shortly crisped-pubescent, pinnately veined with 14-18 arcuate lateral veins, base weakly cordate, margin mucronulate-dentate, apex acute to obtuse, ± acuminate, mucronulate. Upper leaves smaller and narrower upward, lanceolate, base cuneate. Capitula discoid, pendulous, numerous, arranged in narrow terminal and upper axil-lary panicles; peduncles 3-8 cm, shortly crisped-pubescent. Involucres cylindric, 7-8 × 2-3 mm, calyculate; bracts of calyculus ca. 3, linear; phyllaries 5(or 6), narrowly oblong, 6-7 × ca. 1 mm, herbaceous, sparsely puberulent, inconspicuously 3-veined, apically obtuse and puberulent. Florets 5-7; corolla yellow, ca. 6 mm, with ca. 2 mm tube and funnelform limb; lobes ovate-oblong, ca. 1 mm, apically acute. Anthers ca. 2.2 mm, basally obtuse-auriculate, appendages ovate-lanceolate. Style branches ca. 1 mm. Achenes cylindric, 2-3 mm, glabrous. Pappus dirty white, 4-5 mm. Fl. Jun-Aug.

Shaded slopes; 3600-4500 m. S Xizang (Gyirong) [Bhutan, N India, Nepal].