灌西柳檢視原始碼討論檢視歷史
灌西柳 |
中文名:灌西柳 學 名:Salix macroblasta Schneid. 界:植物界 門:被子植物門 綱:雙子葉植物綱 亞 綱:原始花被亞綱 目:楊柳目 科:楊柳科 屬:柳屬 種:灌西柳 |
灌西柳 , 產四川(灌縣、寶興)、甘肅等省。,生於海拔1600-2000米間的山脊、山坡、或灌叢中。灌木,高2-6米。幼枝具疏長柔毛,老時無毛,黃褐色。 [1]
灌西柳形態特徵
灌木,高2-6米。幼枝具疏長柔毛,老時無毛,黃褐色。芽長圓形,黃紅色,無毛或近無毛,常比葉柄長。
葉披針形或長圓狀披針形,長1.4-4厘米,寬5-12毫米,最大者長可達5厘米,寬2厘米,先端急尖或漸尖,基部圓形或寬楔形,上面深綠色,下面蒼白色,全緣;葉柄長1-3毫米,具疏柔毛。
花序圓柱形,長2.5-3厘米,粗約6毫米,密花,軸被長柔毛;花序梗明顯,具4小葉,至果序時常脫落,子房卵狀長圓形,近無柄,無毛,花柱很短,柱頭先端微裂;腺體1,腹生,卵狀長圓形;
苞片褐色,倒卵狀長圓形,兩面無毛。[2]
蒴果長圓形,長約4毫米。雄株未見。花期4-5月,果期5-6月。
Salix macroblasta Schneid. in Sarg. Pl. Wils. 3: 58. 1916; Hao in Fedde, Rep. Beih. 93: 76. t. 25: 49. 1936.
Shrubs to 6 m tall. Branchlets yellowish brown, sparsely villous when young, glabrescent. Buds yellowish red, oblong, usually longer than petiole, glabrous or subglabrous. Petiole 1-3 mm, pilose; leaf blade lanceolate or oblong-lanceolate, 1.4-4(-5) × 0.5-1.2(-2) cm, abaxially glaucous, adaxially dull green, base rounded or broadly cuneate, margin entire, apex acute or acuminate. Male catkin unknown. Female catkin cylindric, 2.5-3 cm × ca. 6 mm, densely flowered; peduncle conspicuous, with 4 leaflets often deciduous in fruit; rachis villous; bracts brown, obovate-oblong or obovate, glabrous. Female flower: adaxial gland ovate-oblong; ovary ovoid-cylindric, glabrous, subsessile; style very short; stigma lobed. Capsule oblong, ca. 4 mm. Fl. Apr-May, fr. Jun.
- Thickets on mountain slopes and ridges; 1600-2000 m. Gansu, Sichuan (Baoxing Xian, Guan Xian)
灌西柳生長環境
生長於海拔1600-2000米間的山脊、山坡、或灌叢中。