( Water-plantain Family )
|Subfamalies: nil. |
Family Description: Aquatic or marsh herbs, usually perennial. Leaves alternate or basal, sheathing at the base. Flowers hermaphrodite or unisexual, usually bracteate and verticillate in pedunculate umbels, racemes or panicles, occasionally long-pedunculate in leaf-axils. Sepals 3. Petals 3, usually larger than the sepals, often fugacious or deciduous. Stamens 3-numerous, with elongated filaments; anthers opening by longitudinal slits. Carpels 3-numerous, spirally arranged or whorled, free or connate at the base; ovules 1-many; styles apical or subventral. Fruit a group of achenes, drupelets or follicles; seeds without endosperm; embryo horseshoe-shaped.