彎花黍檢視原始碼討論檢視歷史
彎花黍 |
界:植物界 門:被子植物門 綱:單子葉植物綱 目:禾本目 科:禾本科 屬:黍屬 |
彎花黍(wān huā shǔ),學名 Panicum curviflorum Hornemann,禾本目,禾木科植物,一年生草本,鬆弛叢生。 稈直立或geniculately上升,(15-)30-90厘米高,無毛的節。 葉多數基部; 葉鞘具條紋,具糙硬毛的具基於小瘤的毛; 葉片線形或披針形,平, 7-30 * 0.2-0.9 厘米,具糙硬毛,直接的基部,先端銳尖或漸尖; 葉舌0.3-1毫米,一條頭髮的穗。 [1]
形態特徵
一年生草本,鬆弛叢生。 稈直立或geniculately上升,(15-)30-90厘米高,無毛的節。 葉多數基部; 葉鞘具條紋,具糙硬毛的具基於小瘤的毛;
葉片線形或披針形,平, 7-30 * 0.2-0.9 厘米,具糙硬毛,直接的基部,先端銳尖或漸尖; 葉舌0.3-1毫米,一條頭髮的穗。
開闊的的圓錐花序,長圓形輪廓,10-35厘米,平滑的軸,適中分枝; 分枝上升的或開展,粗糙。 披針形的小穗,3-3.5毫米,無毛,漸尖; 穎片寬卵形,微糙的在脈上,漸尖的到驟尖;
更低的穎片1/2-2/3段小穗,5脈,在基部抱莖,被一節間分開; 上面穎片倍於小穗,7-9脈; 無意義的下部的小花,類似於上面穎片,好銳尖的外稃,內稃發育不良;
上面小花長圓形,3/4段小穗,淺黃的或橄欖綠色,發亮,鈍。
FOC >> Vol.22 (2006) >> Poaceae >> Panicum | eFloras.org Link 15.Panicum curviflorum Hornemann彎花黍 wan hua shu
彎花黍 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.
產地生境
Grasslands, disturbed places. Yunnan [India, Indonesia, New Guinea, Pakistan, Sri Lanka, Thailand].
草地,擾亂的地方。 雲南 [印度,印度尼西亞,新幾內亞,巴基斯坦,斯里蘭卡,泰國 ]。