東(dong)莞(guan)市(shi)各鎮(zhen)(zhen)區大力推(tui)廣種植龍(long)(long)眼(yan)(yan),品種以(yi)石(shi)(shi)碣龍(long)(long)眼(yan)(yan)為多(duo),石(shi)(shi)碣龍(long)(long)眼(yan)(yan)以(yi)果(guo)型大,皮(pi)薄(bo)肉厚,甜(tian)脆(cui)爽口,營養豐富而大受歡(huan)迎。據東(dong)莞(guan)市(shi)第一批古樹名木公布{2003.7.4},東(dong)莞(guan)市(shi)分(fen)布在南城、鳳(feng)崗、塘(tang)廈、清溪、大朗(lang)、橋頭(tou)、虎門、洪梅、中堂、石(shi)(shi)碣等鎮(zhen)(zhen)區的二、三級古龍(long)(long)眼(yan)(yan)樹共有17株,現存年(nian)代(dai)最長的是(shi)位于石(shi)(shi)碣涌口村的2株龍(long)(long)眼(yan)(yan),已有300年(nian)樹齡,可見龍(long)(long)眼(yan)(yan)在東(dong)莞(guan)栽種歷史悠久,分(fen)布廣泛。民國期間,東(dong)莞(guan)是(shi)廣東(dong)龍(long)(long)眼(yan)(yan)主(zhu)要產區之一。東(dong)莞(guan)龍(long)(long)眼(yan)(yan)品種有:石(shi)(shi)硤、廣眼(yan)(yan)、烏圓、福(fu)眼(yan)(yan)、東(dong)壁、花殼等。
龍眼可(ke)鮮食,但常用曬或火(huo)焙的方法加工(gong)成龍眼干,取其肉可(ke)入(ru)藥,名為桂(gui)圓肉,具有益脾(pi)、安神、補血養(yang)顏之功效。眼樹材(cai)質堅硬、質重、耐(nai)水濕而不腐(fu),是造船(chuan)、家具等(deng)的良材(cai)。