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DescriptionAnnual herbs. Stipules (in ours) deeply fringed. Leaves opposite. Flowers solitary in leaf axils or in loose cymes at ends of branches, Sepals (4-)5. Petals (4-)5, deeply 2-fid, the lobes themselves sometimes lobed. Stamens 5 or fewer. Styles united below, with 3 arms. Capsule 3-valved.