Its leaves are characterized with cutin, density glandular hair, and the stoma is composed with two kidney-shaped safeguard cells and two hook convoy cells, which effectively control the evaporation.

• 结果表明，屋顶长生草的叶具有肉质旱生植物叶的特点，表皮细胞外有角质层，叶有较密的腺毛分布，气孔器由两个肾形的保卫细胞和两个镰刀形的护卫细胞组成；