The bilaterally symmetrical flowers may be solitary or in clusters or spikes, and have 3 petal-like sepals and 3 petals. The lowest petal, the "lip", is larger than the others and often forms an elaborate sac, often with a spur. The 1 or 2 stamens are joined with the style and stigma in a column. The simple, usually alternate leaves are parallel-veined
This family is a very large one. Tropical orchids are often epiphytic (live in trees).
This family contains flowers.