滇西黍Panicum khasianum Munro ex Hook f.
滇西黍Panicum khasianum Munro ex Hook f.
10. 滇西黍（拟）
Panicum khasianum Munro ex Hook. f. Fl. Brit. Ind. 7:54. 1896; Bor, Grass. Burm. Ceyl. Ind. Pakist. 327. 1960.
多年生草本。秆下部平卧或匍匐状，节上可生根，上部直立，高可达1-2米。叶鞘草质，短于节间，密被疣基毛，边缘密被纤毛。叶舌短具睫毛；叶片线状披针形，长10-20厘米，宽1.8-2.5厘米，基部心形，顶端长渐尖，两面被疣基毛，上面较稀，具多数平行脉，脉于两面均不显，圆锥花序宽大，长15-30厘米，多回分枝，一级分枝长可达15厘米；小穗椭圆形，长2-3毫米，钝尖，柄长0.1-1厘米；第一颖长约为小穗的1/8，基部包裹小穗，三角形，脉不显，第二颖与第一外稃形状、大小和质地等近相似，卵状披针形，具5脉，绿色、深绿色或带紫色，第一内稃缺；第二小花两性，外稃椭圆状长圆形，革质，平滑光亮，顶部被细毛，聚成一小毛尖头，内稃质地与外稃相似，唯较外稃狭，并为外稃边缘所包卷；雄蕊3，花药线形；花柱于基部即分裂为2，柱头羽状。鳞被2，膜质，脉不清晰。花果期7-12月。
产云南西部；偶见生长于海拔1 000-2 500米的山区沼泽或潮湿的地方。印度、尼泊尔和锡金也有分布。模式标本采自印度。
《Flora of China》 Vol. 22 (2006)
Panicum khasianum Munro ex J. D. Hooker
滇西黍 dian xi shu
Perennial. Culms rambling, often rooting at lower nodes, 1–2 m long, branched, terete, nodes glabrous. Leaves cauline; leaf sheaths striate, loose, glabrous, hispid or sparsely ciliate on margins and toward throat; leaf blades narrowly lanceolate, 10–30 × 1–3 cm, subglabrous to pilose or hispid, base abruptly narrowed, apex acuminate; ligule 0.5–1 mm, a ciliolate membrane. Panicle broadly oblong to orbicular in outline, 15–35 cm, much branched; branches spreading, scabrid, bearing spikelets mostly in the upper half. Spikelets elliptic-oblong, glabrous; lower glume ovate, 1/4–1/3 length of spikelet, 0–5-veined, acute or obtuse, not separated by an internode; upper glume as long as spikelet, 5-veined; lower lemma similar to upper glume, palea absent; upper floret as long as spikelet, pale yellow, smooth, shiny, minutely ciliolate at the apex. Fl. and fr. Jul–Dec.
Humid grasslands, valley slopes; 1000–2500 m. W Yunnan [Bhutan, NE India].
别名：喀西黍;
科名：禾本科 Gramineae
属名：黍属 Panicum
10. 滇西黍（拟）
Panicum khasianum Munro ex Hook. f. Fl. Brit. Ind. 7:54. 1896; Bor, Grass. Burm. Ceyl. Ind. Pakist. 327. 1960.
多年生草本。秆下部平卧或匍匐状，节上可生根，上部直立，高可达1-2米。叶鞘草质，短于节间，密被疣基毛，边缘密被纤毛。叶舌短具睫毛；叶片线状披针形，长10-20厘米，宽1.8-2.5厘米，基部心形，顶端长渐尖，两面被疣基毛，上面较稀，具多数平行脉，脉于两面均不显，圆锥花序宽大，长15-30厘米，多回分枝，一级分枝长可达15厘米；小穗椭圆形，长2-3毫米，钝尖，柄长0.1-1厘米；第一颖长约为小穗的1/8，基部包裹小穗，三角形，脉不显，第二颖与第一外稃形状、大小和质地等近相似，卵状披针形，具5脉，绿色、深绿色或带紫色，第一内稃缺；第二小花两性，外稃椭圆状长圆形，革质，平滑光亮，顶部被细毛，聚成一小毛尖头，内稃质地与外稃相似，唯较外稃狭，并为外稃边缘所包卷；雄蕊3，花药线形；花柱于基部即分裂为2，柱头羽状。鳞被2，膜质，脉不清晰。花果期7-12月。
产云南西部；偶见生长于海拔1 000-2 500米的山区沼泽或潮湿的地方。印度、尼泊尔和锡金也有分布。模式标本采自印度。
《Flora of China》 Vol. 22 (2006)
Panicum khasianum Munro ex J. D. Hooker
滇西黍 dian xi shu
Perennial. Culms rambling, often rooting at lower nodes, 1–2 m long, branched, terete, nodes glabrous. Leaves cauline; leaf sheaths striate, loose, glabrous, hispid or sparsely ciliate on margins and toward throat; leaf blades narrowly lanceolate, 10–30 × 1–3 cm, subglabrous to pilose or hispid, base abruptly narrowed, apex acuminate; ligule 0.5–1 mm, a ciliolate membrane. Panicle broadly oblong to orbicular in outline, 15–35 cm, much branched; branches spreading, scabrid, bearing spikelets mostly in the upper half. Spikelets elliptic-oblong, glabrous; lower glume ovate, 1/4–1/3 length of spikelet, 0–5-veined, acute or obtuse, not separated by an internode; upper glume as long as spikelet, 5-veined; lower lemma similar to upper glume, palea absent; upper floret as long as spikelet, pale yellow, smooth, shiny, minutely ciliolate at the apex. Fl. and fr. Jul–Dec.
Humid grasslands, valley slopes; 1000–2500 m. W Yunnan [Bhutan, NE India].