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FOC | Family List | FOC Vol. 22 | Poaceae | Cymbopogon

18. Cymbopogon pendulus (Nees ex Steudel) Will. Watson in E. T. Atkinson, Himalayan Districts N.W. Prov. India. 392. 1882.

垂序香茅 chui xu xiang mao

Andropogon pendulus Nees ex Steudel, Syn. Pl. Glumac. 1: 388. 1854.

Perennial from short rhizome. Culms tufted, robust, up to 3 m tall, 8–12 mm in diam., nodes glabrous. Leaf sheaths glabrous, auricles to 3 mm at mouth; leaf blades linear, glaucous, up to 100 × 0.7–1.5 cm, glabrous, margins scabrid, base gradually narrowed, apex filiform; ligule ca. 2 mm. Spathate compound panicle rather lax, decompound, yellowish tinged pale red, up to 1 m, branches drooping, clusters of racemes dense; spatheoles pale reddish brown, 2–3 cm; racemes 1.5–2.2 cm; rachis internodes and pedicels densely ciliate; pedicel of homogamous pair not swollen. Sessile spikelet narrowly oblong, 5–6 × 1–1.4 mm; lower glume concave in lower 2/3, not wrinkled, sharply 2-keeled throughout, keels narrowly winged above middle, wings 0.15–0.35 mm, obscurely 2–4-veined between keels toward apex, midvein often absent; upper lemma awned; awn 1–1.7 cm. Pedicelled spikelet 5–6 mm.

Stream banks. Yunnan [Bhutan, NE India, Nepal].

This species has a lemon scent. Outside China it occurs on dry, grassy hillsides below 2000 m. It intergrades with Cymbopogon flexuo-sus and C. khasianus, but can usually be recognized by the relatively long, narrow, channeled lower glume of the sessile spikelet.


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