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dicotyledon
Any member of the class Dicotyledonae of angiosperms (flowering plants). Dicotyledons are characterized as having two cotyledons (seed leaves) in the seed embryo. Other general features include broad, net-veined leaves; flower parts (sepals, petals, stamens) arranged in whorls of fours or fives; vascular bundles arranged in a ring in the stem and root; and a taproot (main central root). There are about 250 families of dicotyledons, including the rose, magnolia, and daisy families.
Related category
• BOTANY
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