大戟屬常綠灌木或小喬木，原產印度中、南部乾燥地區。根、莖、葉若被刮傷會分泌白色乳汁。為了度過旱季，莖部發展成肉質化，高可達6m。圓柱形莖綠色或暗綠色，末端具有多數分枝。互生倒卵形葉片肉質，托葉刺狀。大戟花序，花黃色，開花期夏季。

An evergreen shrub or small tree in the genus Euphorbia, native to arid areas in central and southern India. The roots, stems, and leaves would secret white latex if scratched. In order to survive dry seasons, the stems develop into carnification; reach up to 6m high. Cylindrical stems are green or dark green with multiple diverging branches at the ends. Leaves are alternate, obovate and succulent; Stipules thorn-like. Cyathium, yellow flowers, blooming in summer.

栽培：全日照溫暖環境，耐旱性強，介質需排水良好。使用含石礫、粗砂的壤土或砂土，可以避免積水且提供重量以支撐植株。修剪要注意避免汁液沾染眼睛、皮膚。繁殖使用扦插法。

The plant enjoys full-sun and warm environments, highly drought tolerant, using well-drained medium soil like gravel, coarse sandy loam or sand to avoid water stagnation and to provide weight to buttress the plant. Avoid the latex contaminating the eyes and skin when performing pruning. Reproduced by cuttings.

汁液有毒，接觸皮膚會引起接觸性皮膚炎，不可內服以免中毒。造型特異美觀，單株種於瓦盆欣賞或於庭園中單植、叢植都能突顯風格。列植作為綠籬有良好的阻隔功效及防火功能。

The plant is toxic and not edible, touching the toxic latex may cause contact dermatitis. The plant shape is unique and ornamental, suitable for single planting in pottery basins, and single or cluster plantation in gardens. Planted as hedgerows also have good barrier and fire protection.