Martins, E.S. & Catarino, L. (2009) Alismataceae Flora Zambesiaca 12(2)
Symoens, J.J., Billiet, F. (1975) Alismataceae Flore d' Afrique Centrale Jardin Botanique National de Belgique
Perennial stoloniferous glabrous, marsh herbs. Leaves erect, or spreading; leaf-blade ovate to linear-lanceolate; base cordate to cuneate. Inflorescence pseudo-umbellate, 1–3-flowered with 2 membranous bracts; flowers sometimes replaced by vegetative buds—the peduncle bends over stolon-like and the buds develop into new plants. Sepals 3, reflexed in the fruiting stage. Petals 3, larger than the sepals, white. Stamens (6–)9(–12); filaments filiform. Carpels ∞, free on a convex receptacle; styles terminal, hooked; ovules solitary, basal. Fruit a globose head of achenes spirally arranged on the elongated receptacle; achenes strongly compressed laterally, glandular, winged, with a terminal beak formed by the remains of the style. Worldwide: Two species; one in tropical Africa and one in south east Asia and Malay peninsula. DRC: 1 taxon. |
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| Species | Botanical divisions | Content |
| humile (Kunth) Hutch. | III,IV,VI | Description |