The following is a list of the collections made by Ngwenyama in species name order. The records are of species which occur in Rwanda (either as a native/naturalised species or as a cultivated species).
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| No | Species | Record date | Recorder(s) | Coll. | Det. | Conf. | Herbaria | Habitat | Location | Loc code | Outing code | Planted code | Country | QDS | Grid ref. | FZ Div | Alt. (m) | Notes | Lat | Long | Loc Acc Code |
| 124058 | Coleus rhodesianum | 24 Apr 2024 | N Wightman W van Niekerk D Ngwenyama |
N Wightman W van Niekerk D Ngwenyama NCW1298 | N Wightman | K ZAHBRI |
Kalahari woodland | Sitoti, Senanga District, Western Province, Zambia | 0 | Zambia | 1623A4 | B | 1027 | -16.298538 | 23.375131 | 6 |