Plant Groups
Plants that produce seeds not protected by fruit
Gymnospherms
Plants that complete their life cycle in one year (or one season)
Annuals
Plants that flower and produce seeds protected by fruit or pod
Angiosperms
Plants that complete their life cycle in two growing seasons
Biennials
Seeds have one cotyledon therefore the seedlings have one seed leaf
Monocotyledons
Plants that produce for more than two years or growing seasons
Perennials
Seeds have two cotyledons therefore the seedlings have two seed leaves
Dicotyledons