The Lythraceae are mostly tropical herbs or occasionally shrubs or trees comprising about 30 genera and 600 species. The leaves are simple, usually opposite or whorled; stipules are minute or absent. The flowers are bisexual, strongly perigynous, actinomorphic or sometimes zygomorphic, commonly 4-,6-, or 8-merous. The sepals appear as lobes of the perigynous zone, the petals are distinct and usually crumpled. The stamens commonly are twice the number of petals, and are usually in two whorls, one with the filaments longer than the other. The gynoecium consists of a single compound pistil of 2-4 (-several) carpels, a single style and stigma, and a superior (to rarely inferior) ovary with usually 2-4 (-several) locules, each with 2-numerous axile ovules. The fruit is commonly capsular.
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