西南卫矛
分类:植物科普
西南卫矛 Euonymus hamiltonianus Wall.
西南卫矛花期
西南卫矛果期
小乔木，高5-6米；枝条无栓翅，但小枝的棱上有时有4条极窄木栓棱，与栓翅卫矛E. phellomanus Loes.极相近，但本种叶较大，卵状椭圆形、长方椭圆形或椭圆披针形，长7-12厘米，宽7厘米，叶柄也较粗长，长可达5厘米。蒴果较大，直径1-1.5厘米。花期5-6月，果期9-10月。
产于甘肃、陕西、四川、湖南、湖北、江西、安徽、浙江、福建、广东、广西。一般生长于2000米以下的山地林中。分布南至印度。模式标本采自印度。
本种叶形多变，以椭圆形、叶基宽圆者为最典型。
Deciduous shrubs to small trees, 3-20 m tall, to 25 cm d.b.h.; branches and twigs terete, sturdy, green to light green. Petiole sturdy, 9-20 mm; leaf blade thinly leathery or thickly papery, elliptic, or sometimes ovate-elliptic, 11-13(-15) × 3-5(-7) cm, base attenuate, margin finely crenulate, surfaces rough, apex acuminate; lateral veins 6-9 pairs, curving forward, webbing and disappearing before reaching margin. Peduncle 3-4.5 cm, 1-3 × dichotomously branched, several flowered; pedicel 5-7 mm. Flowers 4-merous, 9-10 mm in diam.; sepals ovate; petals white, lanceolate or long ovate, apex acuminate or obtuse. Capsule rhombic, with 4 angles and deep grooves, brown or yellow-brown to red-brown, ca. 8 mm × 1-1.3 cm. Seeds ellipsoid, dark brown; aril orange-red. Fl. Apr-Jul, fr. Aug-Nov.
Forests, woodlands; near sea level to 3000 m. Anhui, Fujian, Gansu, Guangdong, Guangxi, Guizhou, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Shaanxi, Shanxi, Sichuan, SE Xizang (Zayü), Yunnan, Zhejiang [Afghanistan, Bhutan, India, Japan, Kashmir, Korea, Myanmar, Nepal, Pakistan, Russia (?Sakhalin), Thailand].
This is one of the most common species in the genus. Growing in large populations, it can be found throughout the distribution area. It is undoubtedly similar to Euonymus europaeusLinnaeus, but they are quite distinct in their distributions.
