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

7. Cymbopogon gidarba (Buchanan-Hamilton ex Steudel) A. Camus var. burmanicus Bor, J. Bombay Nat. Hist. Soc. 52: 157. 1954.

缅甸浅囊香茅 mian dian qian nang xiang mao

Perennial. Culms tufted, slender, 50–100 cm tall. Leaf sheaths glabrous; leaf blades linear, flat or folded, 18–30 × 0.2–0.5 cm, abaxial surface glabrous, adaxial surface scabrid-puberulous, sometimes with long scattered hairs, base straight, apex finely acuminate; ligule 1–2 mm. Spathate panicle sparsely branched, very lax, 15–30 cm; spatheoles linear, tightly convolute, 2–3 cm; peduncle exserted up to 1.5 cm from near spatheole apex; racemes pinkish gray, ca. 2 cm; rachis internodes and pedicels stoutly cuneate, margins shortly but densely ciliate or woolly, back pubescent or subglabrous; pedicel of homogamous pair and lowest internode swollen. Sessile spikelet narrowly lanceolate, 4–4.5 mm; lower glume deeply concave in lower 2/3, channel puberulous with a prominent swelling at base, keels rounded alongside channel, sharp and scabrid above, wingless, 2–3-veined between keels; upper lemma 2-lobed; awn 1–1.3 cm. Pedicelled spikelet 4–5 mm.

Grassy hillsides; 1000–2200 m. Yunnan (Kaiyang) [Myanmar].

In Myanmar this grass occurs on calcareous clay soils.

Cymbopogon gidarba var. gidarba occurs on uplands in India. It has a narrower, more contracted compound panicle and shorter, 2–2.5 mm, narrowly elliptic spatheoles, with the peduncle not or only very shortly exserted from near the middle of the spatheole. The spikelets are also slightly smaller, with the sessile spikelet 3.2–4 mm.


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