The Polygonaceae
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Description: Description of the family, which are herbs, shrubs, or rarely trees comprising about 30 genera and 1,000 species. Includes photos of a few examples.
Flowering Plant Families, UH Botany The Polygonaceae are herbs, shrubs, or rarely trees comprising about 30 genera and 1,000 species. The leaves are simple, alternate or rarely opposite, and usually stipulate. The membranous, sheathing stipule is called an ocrea. The flowers are actinomorphic, usually small, and are bisexual or occasionally unisexual. The perianth is usually in two undifferentiated whorls comprising 3-6 distinct or basally connate tepals. The androecium consists of 6-9, commonly 8 distinct or basally connate stamens, usually in two whorls. The gynoecium consists of a compound pistil of usually 3 carpels, an equal number of style branches or styles, and a superior ovary with one locule containing a single basal ovule. The fruit is usually a 3-angled or 3-winged achene.
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| Date | activated: 27-Oct-1986 last updated: 24-May-2011 expires: 31-Jul-2014 |