Ipomoea kituiensis Vatke, Linnaea 43: 511 1882. (syn: Ipomoea nyikensis Hallier f.; Ipomoea tambelensis Baker);
Ethiopia to S. Tropical Africa: Ethiopia, Kenya, Malawi, Tanzania, Zambia, Zimbabwe as per POWO;

Convolvulaceae For ID : Argyreia Species? : Kenya : 11AUG16 : AK-09 : 09/09 : 4 posts by 2 authors. Attachments (5)
Argyreia Species seen last month (july’16).
Not sure whether growing wild.

Could this be Argyreia hirsuta?

I think do not match with images at Argyreia hirsuta 

Pl. Check with comparative images at EFI site

Not finding a correct match.

Chances are, it can be Ipomoea kituiensis. Habit ?

Thanks a lot for your efforts.
Adding two more images, hoe these help.
It was probably a woody shrub and not a climber, with thick leaves.

Yes, possible as per GBIF– specimen and identify.plantnet


References: POWO  Catalogue of Life  The Plant List Ver.1.1  Tropicos  IPNI  GBIF– specimen (High resolution specimens) identify.plantnet