Flowering plants are scientifically classified as angiosperms. Angiosperms vary in size, habitat and appearance, but share several common characteristics. All members of this plant group are seed-bearing vascular plants, and house their reproductive structures in flowers.
Angiosperms may be classified as annuals or perennials. Some produce fruits in addition to flowers, which may be edible or toxic. Angiosperms live on land and in water: they occur in virtually every habitat, including deciduous, coniferous and tropical forests and rainforests as well as grasslands, mountaintops and flat plateaus. Some angiosperms live proximately to coastal regions or water bodies such as rivers, lakes and streams while others thrive in desert habitats and dry, arid regions. The angiosperm family is quite large and contains more than 350,000 different species of plants and flowers. Angiosperms vary widely in color and size: some may reach several feet in height, and produce brightly colored flowers and seeds while others are more shrub-like in appearance, and have small buds. This family includes many types of flowers and plants along with several species of trees, herbs and even legumes. Among the largest types of angiosperms are orchids and other bromeliads, followed closely by daisies, and then by legumes. Most angiosperms grow naturally in the wild, and others are raised domestically in greenhouses and nurseries or grown on farms.