陽春鼠刺檢視原始碼討論檢視歷史

陽春鼠刺

原圖鏈接 來自植物智

中文學名:陽春鼠刺 拉丁學名:Itea yangchunensis Jin 界:植物界 門:被子植物門 綱:雙子葉植物綱 亞 綱:薔薇亞綱 目:薔薇目 科:虎耳草科 屬:鼠刺屬

陽春鼠刺（diān shǔ cì， 學名：Itea yangchunensis Jin）灌木，虎耳草科植物，葉較小，無毛。花常短於葉。果錐狀。

陽春鼠刺形態特徵

灌木葉厚革質，長圓形或長圓狀橢圓形，長5.5～7厘米，寬1.7～2.5厘米，先端圓形或鈍，基部寬楔形，邊緣除近基部外具密細鋸齒；

原圖鏈接 來自植物智

平時多少背卷，上面深綠色，下面淡綠色，兩面無毛，有明顯的腺體，側脈5對，弧狀彎，第三級脈平行且連接或網狀；

原圖鏈接 來自植物智

側脈和網脈在兩面極明顯；葉柄粗壯，長6～7毫米，無毛。總狀花序腋生，常短於葉，長3～5厘米；花序軸及花軸被短柔毛；花較少數，2～3個簇生，稀單生；萼筒淺杯狀；萼片矩圓形，長3毫米。

原圖鏈接 來自植物智

蒴果錐狀，長約6毫米，干時黑色，被疏短柔毛或近無毛。果期11月。

分類文獻

Itea yangchunensis Jin, in Acta phytotax. Sin. 33 (5): 497. 1995.

Shrubs or small trees. Branchlets terete, glabrous. Petiole stout, 6-7 mm, glabrous; leaf blade abaxially pale green, adaxially dark green, oblong or oblong-elliptic, 5.5-7 × 1.7-2.5 cm, thickly leathery, both surfaces glabrous, conspicuously glandular punctate, secondary veins in ca. 5 pairs, arcuate curved, tertiary veins both parallel and reticulate, secondary and reticulate veins prominent on both surfaces, margin ± revolute when dry, densely serrulate except near base, apex rounded or obtuse. Racemes axillary, often longer than leaves, 3-5 cm; rachis and pedicels sparsely puberulous; bracts early deciduous. Flowers few, usually 2- or 3-clustered, rarely solitary. Calyx shallowly cupular; lobes oblong-lanceolate, ca. 3 mm, glabrous. Capsule turning black when dry, conical, ca. 6 mm, sparsely puberulous or subglabrous. Fr. Nov.

• Streamsides. SW Guangdong (Yangchun Xian).

This species is similar to Itea coriacea, but differs in having leaves smaller, shorter than the racemes, with a short, stout petiole and a glandular blade with prominent secondary and reticulate veins and a rounded or obtuse apex.

陽春鼠刺生長環境

主要生長於溪邊。

陽春鼠刺分布範圍

特產自廣東（陽春）。

陽春鼠刺鑑別特徵

本種的葉較小，先端圓形或鈍，側脈及網脈極明顯，兩面有明顯的腺體；葉柄短粗；花序明顯短於葉與厚葉鼠刺I. coriacea Y. C. Wu 有明顯的區別。