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資料編號: | HK-3490 |
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中文名稱: | 棕葉狗尾草 |
中文別名: | 颱風草(台灣名) |
學名: | Setaria palmifolia [找同屬植物] |
英文名稱: | Palm-grass |
植物科名: (APG新系統) | POACEAE禾本科 [找同科植物] |
標室舊系統 | POACEAE禾本科[找同科] |
生長習性: | 多年生草本 |
原生/外來: | 香港原生植物 |
發現開花: | Oct |
資料更新: | 20221229 11:46:41 pm |
備註: 1.葉片寬 2-7cm;葉鞘被較粗的疣基毛 2.葉片寬披針形,具縱的皺褶 Thanks Daniel's info: 皺葉狗尾草: 葉鞘無毛或疏被疣基毛; 葉長10-40cm,寬1-3cm; 穎先端鈍圓,第一穎寬卵形,長為小穗的1/4-1/3. 棕葉狗尾草 葉鞘被密或疏並較粗的疣基毛; 葉長15-60cm,寬2-7cm; 第一穎三角狀卵形,長為小穗的1/3-1/2,先端急尖. FOHK: 棕葉狗尾草: Leaf blades 2–7 cm wide; panicle branches up to 20 cm long; lower glume 1/3–1/2 spikelet length 皺葉狗尾草: Leaf blades 1–3 cm wide; panicle branches up to 8 cm long; lower glume 1/4–1/3 spikelet length Reference Photos 深圳植物誌: 棕葉狗尾草: 葉片寬 2-7cm;葉鞘被較粗的疣基毛;第一穎三角狀卵形,先端急尖 皺葉狗尾草: 葉片寬 1-3cm;葉鞘無毛或疏被疣基毛;第一穎寬卵形,先端鈍 深圳植物誌: 多年生草本。具短的根狀莖。稈直立或基部稍膝曲,粗壯,高0. 75-2m,徑3-7 (10) mm,基部直徑可達1cm,具支柱根。葉鞘鬆弛裹稈,被密或疏並較粗的疣基毛,下部邊緣膜質,無纖毛,上部邊緣被較密而長的疣基纖毛,毛易脫落;葉舌長1-3mm,具長約2-3mm的緣毛;葉片寬披針形,長15-60cm,寬2-7cm,具縱的皺褶,基部收窄呈柄狀,先端漸尖,兩面被疣基毛或無毛,近基部邊緣被長約5mm的疣基毛。 圓錐花序長14-60cm,寬2-12cm;花序的主軸具棱角,分枝開展,排列疏鬆,長25-30cm,粗糙;小穗卵狀披針形,長2-4mm,緊密或稀疏排列於分枝的一側,部分小穗下託有1條剛毛,剛毛長4-15mm;第一穎三角狀卵形,長為小穗的1/3-1/2,具3-5脈,邊緣膜質,先端急尖,第二穎長為小穗的1/2-3/4或略短於小穗,具5-7脈,先端漸尖;第一小花雄性或中性,第一外稃與小穗等長或略長於小穗,先端漸尖,有稍彎的小尖頭,具5脈,第一內稃膜質,狹三角形,長為第一外稃的2/3,第二小花兩性,第二外稃與第一外稃等長或稍短於第一外稃,具不明顯的橫皺紋,先端具短而硬的小尖頭;花柱基部合生;成熟小穗不易脫落。穎果卵狀披針形,長2-3mm,具不明顯的橫皺紋。花期:花、果期:3-12月。 。 FOHK: Perennial herb, with a short knotty rhizome. Culms erect or slightly geniculate, 75–200 cm tall. Leaf sheaths loose, usually sparsely hispid, margins tuberculate-ciliate near ligule, otherwise glabrous; leaf blades fusiform-lanceolate, 20–60 × 2–7 cm, glabrous or hispid, plicate, narrowed toward base and petiolate, margins tuberculate-ciliate, acuminate; ligule 1.5–2 m, a ring of hairs. Panicle open or slightly pyramid, 20–60 × 2–10 cm, branches up to 20 cm, laxly spreading, flexuous, some spikelets subtended by a solitary 5–15 mm bristle. Spikelets ovate-lanceolate, 3–4 mm, densely or sparsely arranged in one side; lower glume triangular-ovate, 1/3–1/2 length of spikelet, 3–5-veined; upper glume ovate, 1/2–3/4 length of spikelet, 5–7-veined, acute; lower lemma staminate or neuter, as long as spikelet or slightly longer, 5-veined, tipped with a short incurved beak; lower palea narrow, 2/3 length of lemma, hyaline; upper lemma indistinctly rugulose to almost smooth, slightly shiny, apex apiculate. Caryopsis ovate-lanceolate. Locality: Common in Hong Kong. | |
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23-3490w w至p圖片: 20221013_大埔一帶影 | |
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20-3490t 葉片寬,具縱的皺褶 | |
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