Ephemeral: Plant that completes its life cycle within 4-6 weeks
Annuals: Plants complete their life cycle within one season e.g., buttercup. pea. Wolffia is smallest rootless annual.
Biennials Plants complete their life cycle in two
seasons growing vegetatively and storing food in the first season,
flowering and fruiting in the second season. e.g., Henbane. Radish (in
temperate areas).
Perennials The plants survive for several years. They may
be herbs shrubs or trees e.g., Canna, zizyphus. Mango. Agave Bambusa,
Eucalyptus. etc. Some perennial plants live for several hundred years. e.g., Sequoia (1500 years), Bodhi tree (Ficus religoisa) at Gaya. Banyan tree (Ficus benghalensis) is almost immortal.
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