烏飯葉矮柳檢視原始碼討論檢視歷史
烏飯葉矮柳 |
中文名:烏飯葉矮柳 學 名:Salix vaccinioides Hand.-Mazz. 界:植物界 門:被子植物門Angiospermae 綱:雙子葉植物綱Dicotyledoneae 目:楊柳目 科:楊柳科Salicaceae 屬:柳屬Salix 種:烏飯葉矮柳 |
烏飯葉矮柳(wū fàn yè ǎi liǔ, Salix vaccinioides Hand.-Mazz.),是楊柳科柳屬植物。 [1]
烏飯葉矮柳形態特徵
直立灌木,高約30厘米。枝無毛,暗褐色,有光澤。
葉卵圓形或廣橢圓形至近圓形,長1-2.5厘米,寬0.9-2厘米,上面暗綠色,下面蒼白色,兩面無毛,兩端鈍,全緣,常外卷;葉柄長2-5(6)毫米,無毛;托葉偏斜或寬卵形,長約3毫米,邊緣具齒。
雄花序圓柱形,長2-2.8厘米,粗4-7毫米,基部有2-3小葉,軸具柔毛;雄蕊2,花絲基部具白色長柔毛,花葯黃色,卵狀長圓形;苞片倒卵狀長圓形,褐色,外面有疏毛,內面密被白色長柔毛;腺體1,腹生;
雌花序長2.5-4.5厘米,粗4毫米,基部有3-5正常發育的葉,軸具褐黃色的疏柔毛,苞片褐紫色,近圓形,無毛,腹腺圓筒狀,與苞片幾等長;子房無柄,卵圓形或卵狀橢圓形,無毛,花柱2裂,柱頭短。
蒴果無毛。花期4月,果期5-6月。 [2]
Salix vaccinioides Hand.-Mazz. Symb. Sin. 7: 63. t. 1: 18. 1929; Hao in Fedde, Rep. Beih. 93: 76. t. 25: 50. 1936.
Shrubs low, to 30 cm tall. Branchlets dull brown, glabrous, shiny. Stipules oblique or broadly ovate; petiole 2-5(-6) mm, glabrous; leaf blade ovate or ovate to suborbicular, 1-2.5 × 0.9-2 cm, abaxially glaucous, glabrous, adaxially dull green, base rounded, margin entire, usually revolute, apex obtuse. Male catkin terete, 2-2.8 cm × 4-7 mm, with 2 or 3 leaflets at base; rachis downy; bracts brown, obovate-oblong, abaxially pilose, adaxially densely white villous. Male flower: gland adaxial; stamens 2; filaments white villous at base; anthers yellow, ovoid-oblong. Female catkin 2.5-4.5 cm × ca. 4 mm, with 3-5 normal leaflets at base; rachis brownish yellow, pilose; bracts brownish purple, suborbicular, glabrous. Female flower: adaxial gland terete, ca. as long as bracts. style 2-cleft; stigma short. Capsule glabrous. Fl. Apr, fr. May-Jun.
烏飯葉矮柳生長環境
生於海拔2500-4000米間的山坡、山頂。