a treatise on or list of the plants of an area or period. 2 : plant, bacterial, or fungal life especially : such life characteristic of a region, period, or special environment fossil flora intestinal flora — compare fauna.
a treatise on or list of the plants of an area or period. 2 : plant, bacterial, or fungal life especially : such life characteristic of a region, period, or special environment fossil flora intestinal flora — compare fauna.