齒葉柳檢視原始碼討論檢視歷史
齒葉柳 |
中文名:齒葉柳 學 名:Salix serrulatifolia E. Wolf 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:齒葉柳 |
齒葉柳(chǐ yè liǔ,學名 Salix denticulata Anderss.異名:Salix elegans ),灌木,高2-6米。幼枝有短柔毛,老則無毛。葉卵圓形或橢圓狀長圓形,產四川、雲南、西藏等省區。 [1]
齒葉柳形態特徵
灌木,高2-6米。幼枝有短柔毛,老則無毛。 葉卵圓形或橢圓狀長圓形,長3-5厘米,寬1.2-2.2厘米,先端急尖或鈍,基部圓形或寬楔形,上面綠色,下面蒼白色,兩面無毛,邊緣具細牙齒;葉柄無毛,長約2毫米。
雄花序長約2.5厘米,有短梗,着生3-4正常發育的小葉,軸具疏柔毛;雄蕊2,花絲中部以下具長柔毛,花葯黃色;苞片橢圓狀圓形或倒卵圓形,長為雄蕊的1/3,無毛;腺體1,腹生,圓柱狀,長為苞片的一半;雌花序長約4厘米,果序可長達9厘米,花序梗具正常的葉子,軸有毛;
子房卵狀長圓形或卵圓形,無毛近無柄,花柱2淺裂,柱頭短;苞片倒卵圓形,外面無毛,內面基部有疏柔毛。
蒴果橢圓狀長圓形,長約4毫米。花期4月,果期5月。 [2]
Salix denticulata Anderss. in Svenk. Vetensk. Akad. 1850: 481. 1851; Burkill in Journ. Linn. Soc. 26: 558. 1899; Schneid. in Sarg. Pl. Wils. 3: 117. 1916; Hao in Fedde, Rep. Beih. 93: 80. 1936; 西藏植物名錄, 48. 1980.——S. elegans Wall. apud. Anderss. in Journ. Linn. Soc. 4: 51. 1860.
Shrubs to 6 m tall. Branchlets pubescent when young, glabrescent. Petiole ca. 2 mm, glabrous; leaf blade ovate or elliptic-oblong, 3-5 × 1.2-2.2 cm, abaxially pale, adaxially green, both surfaces glabrous, base rounded or broadly cuneate, margin serrulate, apex acute or obtuse. Male catkin ca. 2.5 cm; peduncle short, with 3 or 4 leaflets; rachis pilose; bracts elliptic-orbicular or obovate, ca. 1/3 as long as filaments, glabrous. Male flower: gland adaxial, cylindric, ca. 1/2 as long as bracts; stamens 2; filaments villous proximally; anthers yellow. Female catkin ca. 4 cm, to 9 cm in fruit; peduncle with leaflets; rachis pilose; bracts obovate, abaxially glabrous, adaxially pilose at base. Female flower: gland adaxial; ovary ovoid-cylindric or ovoid, glabrous, subsessile; style 2-lobed; stigma short. Capsule ellipsoid-oblong, ca. 4 mm. Fl. Apr, fr. May.
齒葉柳生長環境
齒葉柳生長於海拔2500米左右的河邊等處。
齒葉柳分布範圍
齒葉柳產自四川、雲南、西藏等省區,印度、錫金、尼泊爾、巴基斯坦、阿富汗、伊朗等有分布。