本属原产南非和西南非。全属约150种,分成硬叶系和软叶系两类:硬叶系的叶质较硬,剑形或三角形,丛生或轮状互生,叶面大多有白疣点,具有反射强烈阳光的生理特性,如秋天星、九轮塔等;软叶系的叶质软,叶片短肥,形状不一,通常顶部肥胖,呈半透明状、扇状或莲座状互生,如玉扇、宝草等。植株大 This is a native of South Africa and Southwest Africa. All about 150 species, divided into hard and soft leaf lines are two types: hard leafy leaves of hard, sword-shaped or triangular, clusters or alternate rotation, the leaves are mostly white warts point, with a strong reflection of sunlight Physiological characteristics, such as the autumn star, nine wheel tower, etc .; soft leafy leaves soft, short leaves, different shapes, usually top fat, translucent, fan-shaped or rosette-like, such as jade fan, Po grass . Large plant