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DescriptionAnnual or perennial herbs (in ours). Stipules small or 0. Leaves alternate, simple and serrate or deeply divided. Flowers bisexual, actinomorphic, sometimes heterostylous. Calyx 5-lobed. Petals 5. Ovary superior, 1-locular. Styles 3 with fimbriate or laciniate stigmas. Fruit a 3-valved many-seeded (in ours) capsule. Seeds with a 1-sided aril.