| Species ID | Scientific Name | Trade Name | Family Name | Genera ID | Tree Identification | Geolocation | Authorities |
| 4689 | Kailarsenia ochreata | Marblewood | Rubiaceae | ||||
| 4690 | Kalmia latifolia | Mountain Laurel | Ericaceae | 6031 | |||
| 4691 | Kalopanax septemlobus | Harigari | Araliaceae | 5404 | |||
| 4692 | Karwinskia humboldtiana | Coyotilla, Cacachila | Rhamnaceae | 7413 | |||
| 4693 | Khaya caudata | African Mahogany | Meliaceae | 7957 | |||
| 4694 | Kibatalia arborea | Jelutong | Apocynaceae | 6593 | |||
| 4695 | Kigelia africana | Sausage Tree, Salchichas tree | Bignoniaceae | 8219 | |||
| 4696 | Kirkia wilmsii | Mountain Syringa | Kirkiaceae (Simaroubaceae) | 7939 | |||
| 4697 | Knema conferta | Darah Darah | Myristicaceae | 6927 | |||
| 4698 | Knightia excelsa | Rewarewa | Proteaceae | 7360 | |||
| 4699 | Koeberlinea spinosa | Spiny Allthorn | Caprifoliaceae | ||||
| 4700 | Koelreuteria elegans | Golden Raintree | Sapindaceae | 7855 | |||
| 4701 | Koelreuteria paniculata | Raintree | Sapindaceae | 7855 | |||
| 4702 | Koelrouteria apiculata | Varnish tree | Sapindaceae | ||||
| 4703 | Koelrouteria spinosa | Spiny Allthorn | Sapindaceae | ||||
| 4704 | Kokoona reflexa | Mata-ulat | Celastaceae | 5742 | |||
| 4705 | Koompassia beccariana | Kempas | Leguminosae (Caesalpinioideae) | 6381 | |||
| 4706 | Koompassia borneensis | Kempas | Leguminosae (Caesalpinioideae) | 6381 | |||
| 4707 | Koompassia parviflora | Kempis | Leguminosae (Caesalpinioideae) | 6381 |