Biennial, any plant that normally requires two years for its life cycle. Biennials store food in the first season of their growth, flower and bear fruit in the second season, and then die. Familiar examples are foxglove, hollyhock, and pansy. Many cultivated vegetables are biennials, for example, carrots, turnips, parsnips, parsley, and celery. Biennials often become annuals when early sowing or warm weather causes the earlier development of a flowering stem. Less hardy varieties are often routinely treated as annuals.
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Plant
Plant, any member of the plant kingdom, comprising about 260,000 known species of mosses, liverworts, ferns, herbaceous and woody plants, bushes, vines, trees, and various other forms that mantle the Earth and are also found in its waters. Plants range in size and complexity from small, nonvascular mosses, which depend on direct contact with surface water, to giant sequoia trees, the largest living organisms, which can draw water and minerals through their vascular systems to elevations of more than 100 m (330 ft).. read more
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