輪葉節節菜檢視原始碼討論檢視歷史
輪葉節節菜 |
中文學名:輪葉節節菜 界:植物界 目:桃金娘目 屬:節節菜屬 種:輪葉節節菜 |
輪葉節節菜,別名:墨西哥水松葉,拉丁文名:Rotala mexicana Cham. et Schlechtend.千屈菜科、節節菜屬一年生草本,無毛,帶紅色,基部分枝,常葡旬,上部直立。窄披針形或闊線形,頂端截形,有凸尖,基部狹。花單生葉腋,無梗,略帶紅色;小苞片線形,薄膜質,約與花萼等長,萼筒於結實時半球形,三角形,無附屬體;無花瓣;雄蕊2或3;子房卵形或近球形。產於江蘇、浙江、河南及陝西南部。圖片取自中國植物圖庫。[1]
輪葉節節菜形態特徵
一年生草本,無毛,帶紅色,莖高3-10厘米,基部分枝,常葡旬,上部直立。
輪葉節節菜 葉3-5 片輪生,窄披針形或闊線形,長6-10毫米,寬1.5-2毫米,頂端截形,有凸尖,基部狹。
花單生葉腋,無梗,長0.6-1毫米,略帶紅色;小苞片線形,薄膜質,約與花萼等長,萼筒於結實時半球形,花裂片4-5,三角形,無附屬體;無花瓣;雄蕊2或3;子房卵形或近球形。
蒴果球形,長約1毫米,2-3瓣裂。花期9-11月。[2]
Rotala mexicana Cham. et Schlechtend. in hinnaea 5: 567. 1830; Walp., Rep. 2: 101. 1843; Koehne in Engl., Bot. Jahrb. 1: 150. 1880 et in Engl.,Pflanzenr. 17(IV-216): 29-1903.——R. verticillaris auct. non Linn.: Hiern in Oliv., Fl. Trop. Afr. 2: 467. 1871. ——Ammanninia Baill., lust. Pl.; Madag., Atl. t. 36 3. 1895.
Herbs, annual, aquatic, amphibious, or terrestrial. Stem 3-10 cm, creeping, floating, or erect and ascending, branching. Leaves 3-5(-8)-whorled; aerial leaves narrowly lanceolate to broadly linear [or ovate], 5-10 × 1.5-2 mm, base narrow, apex truncate and often 2-cleft; submerged leaves linear, to 15 × 0.5 mm. Flowers solitary, sessile, axillary; bracteoles linear, ca. as long as floral tube. Floral tube (3 or)4(or 5)-merous, campanulate, translucent, ca. 0.5 mm; sepals (3 or)4(or 5); epicalyx absent. Petals absent. Stamens (1 or)2 or 3(or 4), included. Ovary subglobose; style included, much shorter than ovary. Capsule ca. 1 mm in diam., (2 or)3-valved. Seeds ca. 0.3 mm. Fl. Sep-Dec.
輪葉節節菜生長環境
常生長於淺水濕地中。
輪葉節節菜分布範圍
產於江蘇、浙江、河南及陝西南部;分布於泰國、越南、菲律賓、日本、馬達加斯加等地。