From WordNet (r) 2.0 (August 2003) [wn]:
flora
n 1: all the plant life in a particular region [syn:
vegetation] [ant: fauna]
2: a living organism lacking the power of locomotion [syn:
plant, plant life]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Flora \Flo"ra\, n. [L., the goddess of flowers, from flos,
floris, flower. See Flower.]
1. (Rom. Myth.) The goddess of flowers and spring.
[1913 Webster]
2. (Bot.) The complete system of vegetable species growing
without cultivation in a given locality, region, or
period; a list or description of, or treatise on, such
plants.
[1913 Webster]