Annual or perennial herbs, terrestrial or aquatic, usually bearing filiform root-like organs (rhizoids) at the base. Stem-like stolons arise at the base of the peduncle and bear leaves, inflorescences and bladder like traps. Leaves in terrestrial species mostly erect, entire, linear to circular; in the aquatic species usually dichotomously divided into capillary segments. Traps spherical or ovoid with a trap door or mouth and various diverse appendages. Flowers in bracteate racemes, rarely solitary, borne on capillary peduncles. Calyx lobes 2, usually accrescent. Corolla 2-lipped; upper lip 2(-3-lobed; lower much longer with a raised palate, spurred. Stamens 2. Fruit a spherical or ovoid capsule, dehiscent in various ways, rarely indehiscent. Seeds usually minute. Worldwide: 180 species, cosmopolitan, mainly tropical. Burundi: 17 taxa. |
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| Species | Content | |
| andongensis Hiern | ||
| appendiculata E.A. Bruce | ||
| arenaria A.DC. | Description, Image | |
| australis R.Br. | ||
| benjaminiana Oliv. | ||
| foliosa L. | ||
| gibba L. | ||
| inflexa Forssk. | ||
| livida E. Mey. | Description, Image | |
| pentadactyla P. Taylor | Description, Image | |
| reflexa Oliv. | ||
| spiralis Sm. | ||
| stellaris L.f. | Description, Image | |
| striatula Sm. | ||
| subulata L. | Description, Image | |
| tortilis Oliv. | Description, Image | |
| troupinii P.Taylor |