柃木屬常綠灌木至小喬木，原產東亞亞熱帶至熱帶氣候區，臺灣低中海拔山區普遍生長。高可達3m，小枝及葉芽有細毛。互生橢圓形或倒卵狀披針形葉，葉表光滑，背面幼時有毛，葉緣有鋸齒。雌雄異花，1~4朵簇生葉腋，花白色有香味。紫色果實圓形。

An evergreen shrub or small tree in the genus Eurya, native to the subtropical to tropical climate regions of East Asia, and commonly grown in the low and middle altitude mountains of Taiwan. Plant height 3m, twigs and sprouts coated with fine hairs. Leaves alternate elliptic or obovate-lanceolate, smooth on the surface; hairy on the underside when young; margins serrated. Dioecious, 1~4 flowers clustered in leaf axils, white and fragrant. Fruit purple and round.

半日照或全日照環境，高濕度或略乾燥環境都可以適應。使用排水良好的介質種植，每季施用一次長效性綜合肥料，觀察介質略乾才澆水。繁殖使用扦插、播種或空中壓條法。

The plant thrives in partial-sun or full-sun conditions, as well as highly-moist or slightly-dry environments. Well-drained medium preferably. Apply a slow-release compound fertilizer once a season and water only when the medium slightly dries. Propagated by cutting, seeding or air layering.

葉色油亮、枝葉疏落有致，適合修剪整形或列植為綠籬，適合種植於建築牆蔭處或中庭等較陰暗環境。也開發為盆景材料，市場商品名稱為碎米茶或翠米茶。花朵繁盛且芳香，是主要蜜源植物。果實可以誘鳥。

The plant bears brightly green leaves which presents a sparse and graceful posture, suitable to be planted as hedgerows after proper pruning and shaping or planted in shady areas such as building walls or atriums. It is also developed as a bonsai material, and commercially named “broken rice tea” or “cuimi tea” in the market. The abundant and fragrant flowers are an important nectar source. The fruits can be used to lure birds.