Faden, R. (2012) Commelinaceae Flora of Tropical East Africa
Malaise, P. (1988) Commelinaceae Flore du Rwanda Spermatophytes Volume IV 119-142
Van den Burg, J.W. & Bidault, E. (2020) Commelinaceae Flore du Gabon 55 1-88
Succulent perennials or (rarely) annuals, with bulbs, corms, rhizomes or tubers and often with separate fertile and sterile shoots. Inflorescences composed of cymes, each cyme subtended by a spathe, consisting of 2-ranked sessile or subsessile flowers and usually conspicuous herbaceous bracteoles. Flowers actinomorphic, bisexual. Calyx tubular below. Corolla with a short tube, 3 lobes blue, purple or pink. Stamens 6, equal, all fertile. Ovary 3-locular. Capsule narrowly ovoid. Worldwide: 50 species, in the Old World tropics Zimbabwe: 7 taxa. Insects associated with this genus:
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| Species | FZ divisions | Content |
| arachnoidea C.B. Clarke | E,S | |
| chimanimaniensis Faden INED. [NrEnd] | E | |
| foecunda Hassk. | N,W,C,E,S | Description, Image |
| lanata Benth. | N,W,C,E,S | Description, Image |
| longifolia Benth. | N,W,C,E | Description, Image |
| speciosa (L.f.) Hassk. subsp. speciosa | N,W,C,E,S | Description, Image |
| vaga (Lour.) Schult. & Schult.f. | E | Description, Image |