東(dong)莞(guan)市(shi)各鎮區大(da)力推廣種(zhong)植龍(long)眼(yan)(yan),品(pin)(pin)種(zhong)以(yi)石(shi)(shi)碣龍(long)眼(yan)(yan)為多,石(shi)(shi)碣龍(long)眼(yan)(yan)以(yi)果型大(da),皮薄肉(rou)厚,甜脆爽口,營養豐富而大(da)受歡迎。據東(dong)莞(guan)市(shi)第一批(pi)古樹名(ming)木公(gong)布{2003.7.4},東(dong)莞(guan)市(shi)分(fen)布在南城、鳳崗、塘廈、清(qing)溪、大(da)朗、橋(qiao)頭、虎門、洪梅(mei)、中堂、石(shi)(shi)碣等鎮區的二、三級古龍(long)眼(yan)(yan)樹共有17株,現存(cun)年(nian)代最長的是(shi)位于石(shi)(shi)碣涌口村(cun)的2株龍(long)眼(yan)(yan),已有300年(nian)樹齡,可見龍(long)眼(yan)(yan)在東(dong)莞(guan)栽種(zhong)歷史悠久,分(fen)布廣泛。民國(guo)期(qi)間,東(dong)莞(guan)是(shi)廣東(dong)龍(long)眼(yan)(yan)主要產區之一。東(dong)莞(guan)龍(long)眼(yan)(yan)品(pin)(pin)種(zhong)有:石(shi)(shi)硤、廣眼(yan)(yan)、烏圓、福眼(yan)(yan)、東(dong)壁、花殼等。
龍(long)眼可(ke)鮮(xian)食,但(dan)常用(yong)曬(shai)或火焙的(de)方法(fa)加工成龍(long)眼干,取其肉(rou)可(ke)入藥,名為桂(gui)圓肉(rou),具有益脾、安神、補血養顏之功效(xiao)。眼樹(shu)材質堅(jian)硬(ying)、質重(zhong)、耐水濕而不腐,是造船、家具等的(de)良材。