Records of purely cultivated species are displayed in a different font and colour.
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| Family name | Species name | Location | Link to record |
| Apocynaceae subfamilies Apocynoideae and Rauvolfioideae | Carissa bispinosa subsp. zambesiensis | Castleburn Forest, Vumba. | Record |
| Rhizophoraceae | Cassipourea malosana | Castleburn Forest, Vumba. | Record |
| Lamiaceae | Clerodendrum cephalanthum subsp. swynnertonii | Castleburn Forest, Vumba | Record (with image) |
| Fabaceae subfamily Papilionoideae | Craibia brevicaudata subsp. baptistarum | Castleburn Forest, Vumba Mts | Record |
| Acanthaceae | Dicliptera extenta | Castleburn Forest, Vumba | Record |
| Ebenaceae | Diospyros abyssinica subsp. abyssinica | Castleburn Forest, Vumba | Record |
| Ebenaceae | Diospyros natalensis subsp. nummularia | Castleburn Forest, Vumba | Record (with image) |
| Celastraceae | Elaeodendron croceum | Castleburn Forest, Vumba | Record |
| Erythroxylaceae | Erythroxylum emarginatum | Castleburn Forest, Vumba | Record |
| Rubiaceae | Heinsenia diervilleoides subsp. diervilleoides | Castleburn Forest, Vumba | Record (with image) |
| Clusiaceae | Hypericum roeperianum | Edge of Staff Compound, Castleburn, Vumba | Record |
| Acanthaceae | Hypoestes aristata | Best-Kept-Secret staff compound, Castleburn, Vumba | Record |
| Araliaceae | Neocussonia umbellifera | Castleburn Forest, Vumba | Record |
| Rubiaceae | Oxyanthus speciosus subsp. stenocarpus | Castleburn Forest, Vumba | Record |
| Achariaceae | Rawsonia lucida | Castleburn Forest, Vumba | Record |
| Apocynaceae subfamilies Asclepiadoideae and Secamonoideae | Secamone alpini | Castleburn Forest, Vumba | Record |
| Apocynaceae subfamilies Apocynoideae and Rauvolfioideae | Strophanthus speciosus | Castleburn Forest, Vumba | Record |
| Loganiaceae | Strychnos lucens | Castleburn Forest, Vumba | Record |
| Rutaceae | Vepris nobilis | Castleburn Forest, Vumba | Record |
Number of records found: 19