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灰毛柃檢視原始碼討論檢視歷史

事實揭露 揭密真相
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灰毛柃為山茶科、柃木屬灌木或小喬木;葉橢圓形,革質;花簇生於葉腋;圓球形果實疏被柔毛。 [1]

灰毛柃
灰毛柃1.jpg

原圖鏈接 來自植物標本館

中文學名:灰毛柃

拉丁學名:Eurya gnaphalocarpa Hayata

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:側膜胎座目

科:山茶科

族:楊桐族

屬:柃木屬

灰毛柃形態特徵

嫩枝紅褐色或灰褐色,略具2棱,疏被貼伏短柔毛,小枝紫褐色或灰褐色,無毛;頂芽密被貼伏短柔毛。

葉革質,橢圓形或披針狀橢圓形,長4-7厘米,寬1.5-2厘米,頂端漸尖,有時近尾狀,尖頭鈍,基部楔形,邊緣除基部外,有鋸齒或細鋸齒,上面綠色,有光澤,無毛,下面黃綠色,初時被貼伏短柔毛,後變無毛,中脈在上面凹下,下面凸起,側脈6-8對,兩面均稍明顯,有時在上面不明顯;葉柄長3-5毫米。

花1-3朵簇生於葉腋,花梗長約2毫米,被短柔毛;雄花:小苞片2;萼片5,卵圓形或圓形,頂端圓,長1.5-2毫米,外面有短柔毛;花瓣5,長圓形或長圓狀披針形,長約3毫米;雄蕊10-15枚,花葯具多分格,退化子房被短柔毛。雌花:小苞片、萼片及花瓣與雄花同,但較小;子房圓球形,3室,密被柔毛,花柱長約2毫米,頂端3-4深裂。

果實圓球形,直徑3-4毫米,疏被柔毛。

Shrubs or small trees. Young branches purplish brown to grayish brown, glabrous; current year branchlets reddish brown, slightly 2-ribbed, sparsely appressed pubescent; terminal buds densely appressed pubescent. Petiole 3-5 mm; leaf blade elliptic to elliptic-lanceolate, 4-7 × 1.5-2 cm, leathery, abaxially yellowish green and appressed pubescent when young but glabrescent, adaxially green, glabrous, and shiny, midvein abaxially elevated and adaxially impressed, secondary veins 6-8 on each side of midvein and slightly visible on both surfaces or abaxially obscure, base cuneate, margin serrate or serrulate except basally entire, apex acuminate to rarely subcaudate and with an obtuse tip. Flowers axillary, solitary or to 3 in a cluster. Pedicel ca. 2 mm, pubescent. Male flowers: bracteoles ovate; sepals ovate to orbicular, 1.5-2 mm, outside pubescent, apex rounded; petals oblong to oblong-lanceolate, ca. 3 mm; stamens 10-15; anthers multi-locellate; pistillode pubescent. Female flowers: bracteoles, sepals, and petals similar to those of male flowers but slightly smaller; ovary globose, densely pubescent, 3-loculed; style ca. 2 mm, apically 3- or 4-parted. Fruit globose, 3-4 mm in diam., sparsely pubescent. Fl. Nov-Dec, fr. Apr-May.

灰毛柃生長環境

生長於海拔2300-3500米的山地林中或林緣。

灰毛柃分布範圍

產於我國台灣台東花蓮台中嘉義阿里山等地;菲律賓也有分布。

參考來源

  1. 灰毛柃, 植物智, 2020-01-18