亞龍木屬落葉性半多肉質灌木，株高可達12m。原產馬達加斯加，外型像狼牙棒。此科與仙人掌科的植物血緣相近，可嫁接到仙人掌上生長。莖分枝少，莖上棘刺呈現螺旋排列狀。

An Alluaudia deciduous semi-succulent shrub, native in Madagascar. The plant looks like a mace and can grow up to 12 m tall. This species is closely related to the family Cactaceae, so they can be grafted on cacti to grow. The stem few branched, the spines on the stem spirally arranged.

栽培：全日照通風環境下可生長良好，日照充足時可促進開花。炎夏時切勿讓植株曝曬，以免產生日燒等曬傷跡象。為了防止爛根等情形，需採用排水透氣的介質。冬季溫度不可低於攝氏15℃，冬季時植株進入冬眠期，生長緩慢，可移至室內明亮處，控制澆水。若低於攝氏10℃以下，會使其凍傷，影響生長。

It grows well under the full sun and ventilation environment. Sufficient sunlight can promote flowering, however, exposure in high summer may cause signs of scorch, such as sunburn. Use draining and breathable soil to avoid root rotting. Fertilized soil can promote the growth. Control the temperature no lower than 15 °C in winter. It becomes dormant and grows slowly in winter, move it to a bright indoor place and control watering. When the air temperature dips below 10 °C, frostbites will occur and affect the growth.

此多肉植物因其型態特殊，常被應用在植物推廣教育或進行觀賞品種育種選拔、特殊景觀佈置、花藝組合盆栽，於居家綠美化種植上擁有獨特的地位。

Valued for the unique shape, this succulent is often used in plant promotion and education programs, in breeding selection of ornamental varieties, special landscape arrangements, and in mixed flower pots. It has a unique role in home greenery plantation.