匙叶垂头菊 shi ye chui tou ju

Cremanthodium hirtiflorum S. W. Liu.

Plants grayish green, mealy. Stem solitary, erect, to 100 cm tall, 4-5 mm in diam. at base, proximally glabrous, distally shortly white pilose. Basal leaves petiolate; petiole 5-12 cm, glabrous, base sheathed; leaf blade oblong-spatulate, 10-15 × 4-7.5 cm, glabrous, pinnately veined, base gradually narrowed into a winged petiole, margin entire, apex rounded or obtuse. Middle to distal stem leaves 6 or 7, erect, adnate, sessile, smaller distally, oblong to lanceolate, base semiamplexicaul, apex acuminate. Capitula ca. 10, in raceme, nodding; peduncles to 3 cm, shortly white pilose. Involucre hemispheric, 6-7 × ca. 10 mm, outside glabrous; phyllaries 13, in 2 rows, 1.5-3 mm wide, apex acuminate, ciliate; outer phyllaries lanceolate; inner phyllaries oblong, margin white membranous. Ray florets yellow, lamina oblong, ca. 7 × 2 mm, apex acute; tube ca. 1 mm. Tubular florets numerous, ca. 5 mm; tube ca. 1.5 mm. Achenes pale brown, obovoid, ca. 5 mm, ribbed. Pappus pale yellow, 2-3 mm, shorter than tubular corolla. Fl. and fr. Sep.

● Scrub; ca. 2900 m. S Xizang.