Hypoestes forskaolii (Vahl) Sol. ex Roem. & Schult., H.Salt, Voy. Abyss., App.: lxiii (1814) (syn: Hypoestes annua Hochst. & Steud. ex Steud.; Hypoestes echioides Lindau; Hypoestes forskaolii var. grandifolia Gilli; Hypoestes latifolia Hochst.; Hypoestes mlanjensis C. B. Cl.; Hypoestes mollis T. Anders.; Hypoestes paniculata (Forssk.) Schweinf.; Hypoestes preussii Lindau; Hypoestes rothii T. Anders.; Hypoestes tanganyikensis C. B. Cl.; Hypoestes tenuispica Del. ex Martelli; Hypoestes violaceotincta Lindau; Justicia forskalei Vahl; Justicia forskohlii (Vahl) R. Br. ex Steud.; Justicia paniculata Forssk.);
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Africa to SW. Arabian Peninsula: Angola, Benin, Botswana, Burkina, Burundi, Cameroon, Cape Provinces, Cape Verde, Caprivi Strip, Central African Repu, Chad, Djibouti, Eritrea, Ethiopia, Free State, Gabon, Ghana, Guinea, Guinea-Bissau, Ivory Coast, Kenya, KwaZulu-Natal, Madagascar, Malawi, Mali, Mozambique, Namibia, Nigeria, Northern Provinces, Oman, Rwanda, Saudi Arabia, Senegal, Sierra Leone, Somalia, Sudan, Swaziland, Tanzania, Togo, Uganda, Yemen, Zambia, Zaïre, Zimbabwe as per POWO;
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Plant for ID : Kenya : 29JAN21 : AK-36
2 images.
Plants with tiny flowers seen in July, 2016.
Seen in two different locations.
Acanthaceae may be Justicia!
I think your guess is correct !
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References: POWO Catalogue of Life GBIF (High resolution specimens) Flora of Zimbabwe Wikipedia African Plants
