Leistner, O.A. (2005) Seed plants of southern tropical Africa: families and genera SABONET Report No. 26 SABONET, Pretoria
Meerts, P. (2025) Labiatae sous-familles VI. Nepetoideae et VII. Tectonoideae, Addendum a la sous-famille V. Lamioideae Flore d'Afrique Centrale Nouvelle Serie Jardin Botanique Meise, Belgique
Herbs or shrubs, sometimes aquatic; stem weak, terete or angular, hairy. Leaves in opposite pairs, petiolate, base cuneate, apex acute, margins serrate or dentate, hairy. Inflorescence a dense terminal spike, simple or branched with hairs. Calyx campanulate, ciliate, hairy within. Corolla 4-lobed, 3 lobes forming the upper lip, lower lip single-lobed. Fruit of 4 nutlets. Worldwide: 90-100 species mainly in Asia. 2 species in Africa. DRC: 1 taxon. |
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| Species | Botanical divisions | Content |
| aquaticus (C.H.Wright) Press | XI |