important; font: 14px/24px arial, 宋體, sans-serif; white-space: normal; float: none; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px">桂花樹,常綠闊葉喬木。桂花important; font: 14px/24px arial, 宋體, sans-serif; white-space: normal; float: none; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px">實(shí)生苗有很明顯important; font: 14px/24px arial, 宋體, sans-serif; white-space: normal; float: none; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px">的主根,根系發(fā)達(dá)深長(zhǎng),樹高可達(dá)15米,樹冠可覆蓋400平方米。幼根淺黃褐色,老根是黃褐色。葉對(duì)生,葉面光滑,革質(zhì),近軸面暗亮綠色,遠(yuǎn)軸面色較淡,具有疊生芽2至3對(duì)。桂花樹喜溫暖,抗逆性強(qiáng),既耐高溫,也較耐寒,因此在中國(guó)秦嶺important; font: 14px/24px arial, 宋體, sans-serif; white-space: normal; float: none; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px">、淮河important; font: 14px/24px arial, 宋體, sans-serif; white-space: normal; float: none; letter-spacing: normal; color: rgb(51,51,51); word-spacing: 0px; -webkit-text-stroke-width: 0px">以南的地區(qū)均可露地越冬。