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弯花黍 |
界:植物界 门:被子植物门 纲:单子叶植物纲 目:禾本目 科:禾本科 属:黍属 |
弯花黍(wān huā shǔ),学名 Panicum curviflorum Hornemann,禾本目,禾木科植物,一年生草本,松弛丛生。 秆直立或geniculately上升,(15-)30-90厘米高,无毛的节。 叶多数基部; 叶鞘具条纹,具糙硬毛的具基于小瘤的毛; 叶片线形或披针形,平, 7-30 * 0.2-0.9 厘米,具糙硬毛,直接的基部,先端锐尖或渐尖; 叶舌0.3-1毫米,一条头发的穗。 [1]
形态特征
一年生草本,松弛丛生。 秆直立或geniculately上升,(15-)30-90厘米高,无毛的节。 叶多数基部; 叶鞘具条纹,具糙硬毛的具基于小瘤的毛;
叶片线形或披针形,平, 7-30 * 0.2-0.9 厘米,具糙硬毛,直接的基部,先端锐尖或渐尖; 叶舌0.3-1毫米,一条头发的穗。
开阔的的圆锥花序,长圆形轮廓,10-35厘米,平滑的轴,适中分枝; 分枝上升的或开展,粗糙。 披针形的小穗,3-3.5毫米,无毛,渐尖; 颖片宽卵形,微糙的在脉上,渐尖的到骤尖;
更低的颖片1/2-2/3段小穗,5脉,在基部抱茎,被一节间分开; 上面颖片倍于小穗,7-9脉; 无意义的下部的小花,类似于上面颖片,好锐尖的外稃,内稃发育不良;
上面小花长圆形,3/4段小穗,浅黄的或橄榄绿色,发亮,钝。
FOC >> Vol.22 (2006) >> Poaceae >> Panicum | eFloras.org Link 15.Panicum curviflorum Hornemann弯花黍 wan hua shu
弯花黍 Panicum curviflorum Panicum trypheron Schultes.Annual, loosely tufted. Culms erect or geniculately ascending, (15–)30–90 cm tall, nodes glabrous. Leaves mostly basal; leaf sheaths striate, hispid with tubercle-based hairs; leaf blades linear or lanceolate, flat, 7–30 × 0.2–0.9 cm, hispid, base straight, apex acute or acuminate; ligule 0.3–1 mm, a fringe of hairs.
Panicle open, oblong in outline, 10–35 cm, axis smooth, moderately branched; branches ascending or spreading, scabrid. Spikelets lanceolate, 3–3.5 mm, glabrous, acuminate; glumes broadly ovate, scaberulous on veins, acuminate to cuspidate; lower glume 1/2–2/3 length of spikelet, 5-veined, clasping at the base, separated by an internode;
upper glume as long as spikelet, 7–9-veined; lower floret barren, lemma similar to upper glume, finely acute, palea poorly developed; upper floret oblong, 3/4 length of spikelet, pale yellow or olive green, shiny, obtuse.
产地生境
Grasslands, disturbed places. Yunnan [India, Indonesia, New Guinea, Pakistan, Sri Lanka, Thailand].
草地,扰乱的地方。 云南 [印度,印度尼西亚,新几内亚,巴基斯坦,斯里兰卡,泰国 ]。