Leaves long linear, graminoid or shortly setiform, apex spinose.

叶形，禾草状或短刚毛状，具刺先端。

Leaves in a rosette, grasslike, linear, occasionally thinly filiform, often thin and transparent, fenestrate, base sheathing.

叶莲座丛生，禾草状，形，丝状，通常而透明，，基部具鞘。