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FOC | Family List | FOC Vol. 20-21 | Asteraceae | Cremanthodium

18. Cremanthodium forrestii Jeffrey, Notes Roy. Bot. Gard. Edinburgh. 5: 191. 1912.

矢叶垂头菊 shi ye chui tou ju

Cremanthodium lobatum Grierson.

Stem solitary, erect, 10-30 cm tall, slender, 1-2 mm in diam. at base, proximally glabrous, distally white pilose. Basal leaves petiolate; petiole 2-17 cm, slender, glabrous, base narrowly sheathed; leaf blade greenish gray, hastate, 0.8-5 × 1.5-7.5 cm, glabrous or abaxially sparsely white pilose, veins ternate, palmate or palmate-pinnate, prominent abaxially, margin entire or sparsely irregularly dentate, rarely lobed, apex acute or acuminate; lobes oblong or suborbicular; basal lobes divergent, sharply triangular. Stem leaves 1 or 2; proximal one hastate, smaller; middle to distal one sessile, linear-oblong, 1-1.5 cm × ca. 2 mm. Capitulum solitary, nodding. Involucre hemispheric, 1-1.5 × 1.5-2 cm, base yellowish brown pilose, outside glabrous; phyllaries 8-10, in 2 rows; outer phyllaries lanceolate, 2-3 mm wide, apex acuminate, sometimes caudate; inner phyllaries ovate-lanceolate, 5-6 mm wide, margin brown membranous, apex acute. Ray florets yellow; lamina oblanceolate, 1.4-2.2 cm × 6-7 mm, with brown veins, apex truncate, 3-lobed; tube ca. 1.5 mm. Tubular florets numerous, yellow, 6-7 mm; tube ca. 1 mm. Achenes yellowish brown, oblong, ca. 5 mm. Pappus brown, as long as tubular corolla. Fl. and fr. Jul-Oct.

● Grassy slopes, alpine meadows; 3500-4000 m. ?Xizang, NW Yunnan.


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