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資料編號: | HK-2023 |
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中文名稱: | 長葉箭蓼(TBC) |
中文別名: | 長箭葉蓼 |
學名: | Persicaria hastatosagittata [找同屬植物] |
異名: | Polygonum hastatosagittatum |
英文名稱: | Long Spear-leaved Smartweed |
英文別名: | Longhastate-leaved Smartweed |
植物科名: (APG新系統) | POLYGONACEAE蓼科 [找同科植物] |
標室舊系統 | POLYGONACEAE蓼科[找同科] |
生長習性: | 草本 |
原生/外來: | 香港原生植物 |
圖片花色: | pink |
特別特徵: | 葉互生 |
資料更新: | 20190116 06:20:45 pm |
備註: TBC:不排除是小花蓼 長箭葉蓼(中誌名稱) 小花蓼: 苞片長=>包到上花底 長葉箭蓼: 箭葉花梗長=>所以花露出來 thanks Crawford's info 長葉箭蓼: 每苞內通常具2花; 花梗長4-6毫米,密被腺毛,比苞片長 小花蓼: 每苞片內具2朵花; 花梗長約2毫米,比苞片短 Reference photo: plants.minibird.jp The plant list: Persicaria hastatosagittata (Makino) Nakai ex T. Mori is a synonym of Polygonum hastatosagittatum Makino 在一個厭惡性的濕地見到,與小花蓼極相似,只能從花序分別。(thanks getmore's info) hkchecklist: --4b.托葉鞘先端截平,具長毛;葉不為三角形 ----1741-糙毛蓼 ----2121-小花蓼 ----2023-長葉箭蓼 FOHK: Annual herb, 40 –90 cm tall. Stems erect or ascending from the prostrate base, longitudinally ribbed, armed with short, retrorse prickles on the ribs. Leaves alternate; petioles 1–2.5 cm, with retrorse prickles; leaf blade lanceolate or elliptic, 3– 8(–10) × 1–2(–3) cm, base sagittate or almost hastate, apex acute to acuminate, margin shortly ciliate, adaxially glabrous or puberulous, abaxially prickly on midvein, and sometimes with stellate hairs. Ocrea tubular, 1.5–2 cm, scarious, apex truncate, long-ciliate. Racemes spike-like[總狀花序穗狀], 1–2.5 cm, forming terminal or axillary panicles. Peduncles densely pubescent and mixed with glandular hairs. Bracts broadly elliptic or ovate, 2.5 –3 mm, ciliate, usually each embracing 2 flowers. Pedicels 4– 6 mm, densely covered with glandular hairs. Perianth pink, 3– 4 mm, deeply 5-lobed; segments broadly elliptic. Stamens 7–8. Ovary ovoid; styles deeply 3-cleft, stigmas capitate. Achenes ovoid, 3-ribbed, 3 – 4 mm, dark brown and shining, enclosed in persistent perianth. Ecology: Wet places near ponds and ditches[池塘和溝渠附近潮濕的地方]. Flowering: Aug.–Sep.; fruiting: Sep.– Oct. 中國植物誌: 一年生草本。莖直立或下部近平臥,高40-90厘米,分枝,具縱棱,沿棱具倒生短皮刺,皮刺長0.3-1毫米。葉披針形或橢圓形,長3-7(10)厘米,寬1-2(3)厘米,頂端急尖或近漸尖,基部箭形或近戟形,上面無毛或被短柔毛,有時被短星狀毛,下面有時被短星狀毛,沿脈中脈具倒生皮刺,邊緣具短緣毛;葉柄長1-2.5厘米,具倒生皮刺;托葉鞘筒狀,膜質,長1.5-2厘米,頂端截形,具長緣毛總狀花序呈短穗狀,長1-1.5厘米,頂生或腋生,花序梗二歧狀分枝,密被短柔毛及腺毛;苞片寬橢圓形或卵形,長2.5-3毫米,具緣毛,每苞內通常具2花; 花梗長4-6毫米,密被腺毛,比苞片長;花被5深裂,淡紅色,花被片寬橢圓形,長3-4毫米;雄蕊7-8,花柱3,中下部合生;柱頭頭狀;瘦果卵形,具3棱,深褐色,具光澤。長3-4毫米,包於宿存花被內。花期8- 9月,果期9- 10月。 | |
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