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单词 annual plant
释义 DictionarySeeplant

annual plant


annual plant

[′an·yə·wəl ′plant] (botany) A plant that completes its growth in one growing season and therefore must be planted annually.

annual plant

annual rings A plant whose life cycle is completed in a single growing season.

annual plant


annual plant

any plant that germinates from seed, grows to maturity and produces new seed all within one year or growing season. Since the life-cycle duration is so short, annuals are usually herbaceous rather than woody. Examples include groundsel, shepherd's purse. See BIENNIAL, PERENNIAL.
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