台灣鼠刺檢視原始碼討論檢視歷史
台灣鼠刺 |
中文學名:台灣鼠刺 拉丁學名:Itea oldhamii Schneid. 別 稱:奧氏鼠刺、老鼠刺、鼠刺 界:植物界 門:被子植物門 綱:木蘭綱 目:薔薇目 科:茶藨子科 屬:鼠刺屬 種:台灣鼠刺 分布區域:我國台灣 |
台灣鼠刺(tái wān shǔ cì,學名 Itea oldhamii C. K. Schneiker,異名:Itea formosana Itea chinensis var. subserrata )為鼠刺屬下常綠灌木,我國台灣特有物種。生於海拔300~500米的山谷中。 [1]
台灣鼠刺形態特徵
常綠灌木,稀小喬木;小枝粗壯,幼枝被疏短柔毛,老枝無毛。
葉厚革質,卵形至卵狀長橢圓形,長6~9 (12) 厘米,寬3.5~5.5厘米,先端急尖或漸尖,稀鈍,基部鈍或楔形,邊緣具每邊2~10個粗齒或稀全緣;
側脈5~7對,弧狀上升,中脈上面下陷,下面突起,有不明顯的網狀脈,兩面無毛;葉柄長5~8毫米,無毛。總狀花序腋生或頂生,長3~5厘米,被柔毛;苞片長1~2毫米;
花梗長2~4毫米,開展,被短柔毛;花多數,單生或2個簇生;萼筒淺杯狀;萼片三角狀披針形,長約為花瓣之半;花瓣白色,披針形,長2.5毫米,寬約1毫米;雄蕊略長於花瓣;花絲有毛;花葯橢圓狀球形;
子房上位,被短柔毛。蒴果錐狀,長5~6毫米,微被毛,基部有宿存萼片。[2]
分類文獻
Itea oldhamii Schneid., Ill. Handb. Laubh. 1: 396. 1906; H. T. Chang, in Acta Phytotax. Sin. 2 (2): 121. pl. 17. fig. 5. 1953; Shimizu et Kao in Taiwania 8: 140. 1962; Li, Woody Fl. Taiwan 249. fig. 91. 1963; 劉業徑, 台灣木本植物志241. 圖51. 1972; Shimizu, Tatemi, Fl. Taiwan 3: 40. Pl. 47. 1977; ——I. chinensis Hook. et Arn. var. subserrata Maxim. in Mel. Biol. 12: 459. 1886. ——I. formosana Li in Journ.Wash. Acad. Sci. 42: 44. 1952; 劉棠瑞, 台灣木本植物圖志 (上), 412.圖349. 1960.——I. Chinensis auct. non Hook. et Arn.: Hemsl. in Trans. Asiat. Soc. Jap. 24. Suppl.: 41. 1896.
Itea chinensis Hooker & Arnott var. subserrata Maximowicz; I. formosana H. L. Li.
Shrubs or rarely small trees, evergreen. Branchlets stout, young ones sparsely pilose, old ones glabrous. Petiole 5-10 mm, glabrous; leaf blade ovate to ovate-elliptic, 6-9 × 3.5-5.5 cm, thickly leathery, both surfaces glabrous, midvein raised abaxially, impressed adaxially, secondary veins in 5-7 pairs, arcuate ascending, reticulate veins prominent, base obtuse or cuneate, margin remotely 2-10-dentate on both sides, apex shortly acute or acuminate, rarely obtuse. Racemes axillary or terminal, 3-5 cm, often pubescent; bracts 1-2 mm. Flowers numerous, solitary or 2-clustered; pedicel spreading, 2-4 mm, puberulous. Calyx shallowly cupular; lobes triangular-lanceolate, ca. 1/2 as long as petals. Petals white, lanceolate, ca. 2.5 × 1 mm. Stamens longer than petals; filaments hairy; anthers ellipsoid-globose. Ovary superior, puberulous. Capsule conical, 5-6 mm, slightly pubescent, with persistent sepals at base. 2n = 22.
Thickets, valleys; 300-500 m. N Taiwan (Taibei) [Japan (Ryukyu Islands)].
The wood is hard and slightly peach-colored and is used for making furniture.
台灣鼠刺生長環境
生長於海拔300~500米的山谷中。[3]