井岡柳
井岡柳 |
中文學名:井崗柳 拉丁學名:Salix leveilleana Schneid. 界:植物界 門:被子植物門 Angiospermae 綱:雙子葉植物綱 Dicotyledoneae 亞 綱:原始花被亞綱 Archichlamydeae 目:楊柳目 Salicales 科:楊柳科 Salicaceae 屬:柳屬 Salix 亞 屬:粉枝柳組 Sect. Daphnella |
井崗柳(學名:Salix leveilleana)是楊柳科柳屬的植物,是中國的特有植物。分布於中國大陸的江西、雲南等地,生長於海拔700米至3,000米的地區,多生長在溪流邊,目前尚未由人工引種栽培。 [1]
目錄
井岡柳形態特徵
喬木。樹皮灰色,縱溝裂。小枝綠色或發紅色,無毛。
葉披針形,中部最寬,長約7.5厘米,寬約1.3厘米,向兩端漸狹,上面綠色,下面蒼綠色,無毛,邊緣有明顯的鋸齒;葉柄長約1厘米。
花先葉開放或近同時開放;雌花序圓柱形,長約5厘米,粗約1厘米,與小枝幾成平行直生,近無梗或有短梗,基部無葉,軸有長柔毛;子房卵形,無毛,有長柄,花柱長,與子房近等長,柱頭2裂;
苞片倒卵形,先端棕褐色,兩面被白色長柔毛,與子房柄近等長或稍短;腺體1,長圓形。雄株未見。花期3月中下旬。[2]
Salix leveilleana Schneid. in Sarg. Pl. Wils. 3: 176. 1916; Hao in Fedde, Rep. Beih. 93: 84. 1936.
Shrubs or trees. Flowering branchlets silky villous. Buds oblong, shortly pilose. Leaves unknown. Flowering precocious. Male catkin unknown. Female catkin thinner toward apex, usually curved, to 5 × 1 cm, densely flowered, sessile; rachis villous; bracts brownish, oblong, ca. 2 × as long as stipe, long sericeous, apex subobtuse. Female flower: adaxial gland obtusely rectangular; ovary ovoid, glabrous, shortly stipitate; style ca. as long as ovary, puberulent; stigma linear, 2- or 3-lobed. Capsule unknown.
- About 3000 m. NE Yunnan (Qiaojia Xian)
The description is based on the protologue. This species is temporarily placed in this section; additional specimens need to be collected to understand more fully its characteristics and position.