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赤桉又名柳叶桉、细叶桉。原产澳大利亚,引入我国已60余年,云南南部栽培较多。赤桉为常绿乔木,高可达30米,胸径2至3米;树皮光滑呈条状脱落,呈灰白而带红色斑块,树干基部树皮不脱落,小枝红色,短细下垂。幼叶卵圆形至宽披针形,成熟叶有柄,长披针形;花期10至12月,果熟翌年9至11月。赤桉为阳性树种,分枝低,树冠小、枝叶稀疏,根系发达,抗风力强;耐干旱、水湿、寒霜。如金沙江干热河谷地区,年平均气温达20.4℃,最热月
Eucalyptus also known as willow eucalyptus, Eucalyptus. Origin of Australia, has been introduced into our country for more than 60 years, southern Yunnan cultivation more. Eucalyptus grandiflora is evergreen trees, up to 30 meters high, diameter 2 to 3 meters; bark smooth stripped off, gray and red patches, the base of the trunk bark does not fall off, twigs red, short thin sagging. Young leaves ovate to broadly lanceolate, mature leaves with handles, long-lanceolate; flowering from October to December, ripening from September to November the following year. Eucalyptus is a positive tree species with low branches, small crown, sparse branches and leaves, developed root system, strong wind; drought, water wet, frost. Such as the Jinsha River dry hot valley, the annual average temperature of 20.4 ℃, the hottest month