Trees, shrubs or herbs. Stems square. Stipules 0. Leaves opposite or sometimes whorled, simple, typically with 3-7 prominent sunken veins. Flowers in cymes, bisexual, actinomorphic or zygomorphic as regards the stamens, (3-)4-5(-6)-merous. Sepals present, intersepalar segments also present. Petals as many as sepals. Ovary inferior, 2-many-locular. Style 1. Fruit a many-seeded capsule. Worldwide: 188 genera and 4,950 species, tropical and warm areas, especially South America. Zimbabwe: 7 genera and 14 taxa. |
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