東(dong)莞市(shi)(shi)各鎮(zhen)區(qu)大(da)力推廣種(zhong)(zhong)植龍(long)(long)眼(yan),品種(zhong)(zhong)以(yi)石(shi)(shi)(shi)碣(jie)(jie)龍(long)(long)眼(yan)為多,石(shi)(shi)(shi)碣(jie)(jie)龍(long)(long)眼(yan)以(yi)果型大(da),皮薄肉厚,甜脆爽口(kou)(kou),營(ying)養豐富而(er)大(da)受歡迎(ying)。據東(dong)莞市(shi)(shi)第一(yi)批(pi)古(gu)樹名木公(gong)布{2003.7.4},東(dong)莞市(shi)(shi)分布在(zai)南城、鳳崗、塘(tang)廈(sha)、清(qing)溪、大(da)朗、橋頭、虎門(men)、洪(hong)梅(mei)、中堂、石(shi)(shi)(shi)碣(jie)(jie)等鎮(zhen)區(qu)的(de)二(er)、三級古(gu)龍(long)(long)眼(yan)樹共有(you)(you)17株,現存年代(dai)最長的(de)是位于石(shi)(shi)(shi)碣(jie)(jie)涌(yong)口(kou)(kou)村的(de)2株龍(long)(long)眼(yan),已(yi)有(you)(you)300年樹齡(ling),可見龍(long)(long)眼(yan)在(zai)東(dong)莞栽(zai)種(zhong)(zhong)歷史悠久,分布廣泛。民國期間,東(dong)莞是廣東(dong)龍(long)(long)眼(yan)主要產區(qu)之一(yi)。東(dong)莞龍(long)(long)眼(yan)品種(zhong)(zhong)有(you)(you):石(shi)(shi)(shi)硤、廣眼(yan)、烏圓、福眼(yan)、東(dong)壁、花殼等。
龍眼(yan)可(ke)鮮食,但(dan)常(chang)用曬或火焙(bei)的(de)(de)方(fang)法加工(gong)成(cheng)龍眼(yan)干,取(qu)其肉(rou)可(ke)入(ru)藥,名(ming)為桂圓(yuan)肉(rou),具有益脾、安神(shen)、補血養(yang)顏之功(gong)效。眼(yan)樹材質堅硬、質重、耐水濕而不腐,是造船(chuan)、家(jia)具等的(de)(de)良(liang)材。