Croton dichogamus Pax, Bot. Jahrb. Syst. 43: 78 1909. ?;
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Ethiopia to Mozambique: Ethiopia, Kenya, Mozambique, Rwanda, Tanzania, Uganda as per POWO;
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Seen in Kenya in the Mara Triangle, Masai Mara near the banks of River Mara.
Seems to Croton persimilis
Just a suggestion.
Maybe as per
https://www.inaturalist.org/taxa/342743-Croton-dichogamus/browse_photos
Can you please check?
Any flower or fruit ?
These were on the bank of the Mara river.
OK … !
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References: POWO Catalogue of Life The Plant List Ver.1.1 WCSP IPNI iNaturalist