| Species ID | Scientific Name | Trade Name | Family Name | Genera ID | Tree Identification | Geolocation | Authorities |
| 5053 | Ochroma bicolor | Balsa, Gatillo | Bombacaceae | 6979 | |||
| 5054 | Ochroma boliviana | Raom tree | Bombacaceae | 6979 | |||
| 5055 | Ochroma concolor | Pau de Balsa | Bombacaceae | 6979 | |||
| 5056 | Ochroma grandifolora | West Indian Cedar | Bombacaceae | 6979 | |||
| 5057 | Ochroma lagopus | Jopi Balsa | Bombacaceae | 6979 | |||
| 5058 | Ochroma limonensis | Palo de lana Balsa | Bombacaceae | 6979 | |||
| 5059 | Ochroma peruviana | Corkwood, Tabonuco | Bombacaceae | 6979 | |||
| 5060 | Ochroma tomentosa | Palo de Balsa | Bombacaceae | 6979 | |||
| 5061 | Ochroma velutina | West Indian Balsa | Bombacaceae | 6979 | |||
| 5062 | Ocotea aciphylla | Lauraceae | 6895 | ||||
| 5063 | Ocotea caudata | Dolly Pear Silverballi, Yekoro | Lauraceae | 6895 | |||
| 5064 | Ocotea fasciculata | Silverballi, Sawari Skin | Lauraceae | 6895 | |||
| 5065 | Ocotea glomerata | Dolly Pear Silverballi, Laurel Negro, Baaka Apici | Lauraceae | 6895 | |||
| 5066 | Ocotea guianensis | Silverleaf Kereti, Slimy Silverballi | Lauraceae | 6895 | |||
| 5067 | Ocotea indirectinervia | Toraro | Lauraceae | 6895 | |||
| 5068 | Ocotea kenyensis | Transvaal Stinkwood, Kenya Ocotea | Lauraceae | 6895 | |||
| 5069 | Ocotea machenheimii | Swizzle Stick Kereti | Lauraceae | 6895 | |||
| 5070 | Ocotea martiniana | Silverballi | Lauraceae | 6895 | |||
| 5071 | Ocotea neesiana | Kereti, Highbush | Lauraceae | 6895 | |||
| 5072 | Ocotea oblonga | Kereti | Lauraceae | 6895 | |||
| 5073 | Ocotea petalanthera | Kereti, Swizzlestick | Lauraceae | 6895 | |||
| 5074 | Ocotea porosa | Imbuya, Imbuia | Lauraceae | 6895 | |||
| 5075 | Ocotea schomburgkiana | Yekoro | Lauraceae | 6895 | |||
| 5076 | Ocotea splendens | Silverballi, Old Lady | Lauraceae | 6895 | |||
| 5077 | Ocotea tomentella | Baradan | Lauraceae | 6895 | |||
| 5078 | Odontophyllum affine | Minyak berok | Acanthaceae | ||||
| 5079 | Oenocarpus bacaba | Lu Palm, Turu Palm | Palmae | 5564 | |||
| 5080 | Olea capensis | African Olivewood | Oleaceae | 8285 | |||
| 5081 | Olea capensis ssp. capensis | False Ironwood | Oleaceae | 8285 | |||
| 5082 | Olea capensis ssp. macrocarpa | Ironwood | Oleaceae | 8285 | |||
| 5083 | Olea cunnihngamii | Black Maire | Oleaceae | 8285 | |||
| 5084 | Olea sativa | Olive Tree | Oleaceae | 8285 | |||
| 5085 | Olearia argophylla | Muskwood, Musk Daisybush, Tasmanian Muskwood | Compositae | 5478 | |||
| 5086 | Olearia fragrantissima | Fragrant Daisy Tree | Compositae | 5478 | |||
| 5087 | Olneya tesota | Desert Ironwood | Leguminosae (Papilionoideae) | ||||
| 5088 | Oreocallis pinnata | Dorrigo Plum | Proteaceae | 7366 | |||
| 5089 | Oreocallis wickhami | Red Silky Oak, Satin Oak | Proteaceae | 7366 | |||
| 5090 | Ormosia cambodiana | Khi-mou | Leguminosae (Papilionoideae) | 6418 | |||
| 5091 | Ormosia coccinea | Barakaro | Leguminosae (Papilionoideae) | 6418 | |||
| 5092 | Ormosia coutinhoi | Korokoroko | Leguminosae (Papilionoideae) | 6418 | |||
| 5093 | Ormosia micrantha | Horse Eye | Leguminosae (Papilionoideae) | 6418 | |||
| 5094 | Ormosia nobilis | Sirari | Leguminosae (Papilionoideae) | 6418 | |||
| 5095 | Ormosia paraensis | Barakaro | Leguminosae (Papilionoideae) | 6418 | |||
| 5096 | Osmanthus americanus | Devilwood Olive, Wild Olive | Oleaceae | 8286 | |||
| 5097 | Osmanthus aquifolium | Holly Olive | Oleaceae | 8286 | |||
| 5098 | Osmanthus heterophyllus | Oriental Olive | Oleaceae | 8286 | |||
| 5099 | Osmanthus ilicifolius | Holly Leaf Olive | Oleaceae | 8286 | |||
| 5100 | Osmanthus matsumuranus | Chinese Olive | Oleaceae | 8286 | |||
| 5101 | Osmanthus sandwichensis | Hawaiian Olive | Oleaceae | 8286 | |||
| 5102 | Ostrya baileyii | Wolf Hophornbeam | Betulaceae | 6542 | |||
| 5103 | Ostrya carpinifolia | Southern European Hophornbeam | Betulaceae | 6542 | |||
| 5104 | Ostrya italica | Eastern Hophornbeam | Betulaceae | 6542 | |||
| 5105 | Ostrya japonica | Asada, Japanese Hophornbeam | Betulaceae | 6542 | |||
| 5106 | Ostrya knowltonii | Hophornbeam, Knowlton | Betulaceae | 6542 | |||
| 5107 | Ottoschulzia pallida | Uvas Che | Icacinaceae | 5795 | |||
| 5108 | Owenia acidula | Emu Apple, Red Apple | Meliaceae | 7962 | |||
| 5109 | Owenia capitis-yorkii | Crow’s Apple | Meliaceae | 7962 | |||
| 5110 | Owenia venosa | Rose Apple, Rose Almond Apple | Meliaceae | 7962 | |||
| 5111 | Owenia vernicosa | Northern Emu Apple | Meliaceae | 7962 | |||
| 5112 | Oxandra amazonica | Karishiri | Annonaceae | 6815 | |||
| 5113 | Oxandra asbecki | Karishari | Annonaceae | 6815 | |||
| 5114 | Oxydendron arboreum | Sourwood, Sorrel Gum | Ericaceae |