Aloe can be mat-forming or shrubby evergreen perennials, with rosettes of fleshy leaves and small tubular flowers in racemes or panicles
A. vera is an evergreen perennial to 0.6m, forming rosettes of fleshy, narrow, dull green leaves with spiny margins, with long racemes of tubular greenish-yellow flowers 3cm in length in racemes to 90cm in length