| Species ID | Scientific Name | Trade Name | Family Name | Genera ID | Tree Identification | Geolocation | Authorities |
| 5715 | Sabal minor | Dwarf Palmetto, Swamp Palmetto, Bush Palmetto | Palmae (Corphoideae) | 5572 | | | |
| 5716 | Sabal palmetto | Palmetto, Cabbage | Palmae (Corphoideae) | 5572 | | | |
| 5717 | Sacoglottis densiflora | Dukuria | Humiriaceae | 6765 | | | |
| 5718 | Sacoglottis guianensis | Sand Dukuria | Himiriaceae | 6765 | | | |
| 5719 | Salix acuminata | Smith’s Willow | Salicaceae | 8643 | | | |
| 5720 | Salix acutifolia | Sharpleaf Willow | Salicaceae | 8643 | | | |
| 5721 | Salix amygdaloides | Peachleaf Willow | Salicaceae | 8643 | | | |
| 5722 | Salix babylonica | Weeping Willow | Salicaceae | 8643 | | | |
| 5723 | Salix bebbiana | Diamond Willow | Salicaceae | 8643 | | | |
| 5724 | Salix caprea | Goat Willow | Salicaceae | 8643 | | | |
| 5725 | Salix caroliana | Carolina Willow | Salicaceae | 8643 | | | |
| 5726 | Salix discolor | Pussy Willow | Salicaceae | 8643 | | | |
| 5727 | Salix eleagnos | Rosemary Willow | Salicaceae | 8643 | | | |
| 5728 | Salix eriocephala | Diamond Willow, Missouri River Willow | Salicaceae | 8643 | | | |
| 5729 | Salix extigua | Coyote Willow | Salicaceae | 8643 | | | |
| 5730 | Salix glauca | Arctic Gray Willow | Salicaceae | 8643 | | | |
| 5731 | Salix hindsiana | Hind’s Willow | Salicaceae | 8643 | | | |
| 5732 | Salix hookeriana | Hooker Willow | Salicaceae | 8643 | | | |
| 5733 | Salix interior | Sandbar Willow | Salicaceae | 8643 | | | |
| 5734 | Salix irrorata | Blue Stem Willow | Salicaceae | 8643 | | | |
| 5735 | Salix jessoensis | Hiroyoshi-Chashi Willow | Salicaceae | 8643 | | | |
| 5736 | Salix koreansis | Namu-beodeu | Salicaceae | 8643 | | | |
| 5737 | Salix lasiandra | Pacific Willow | Salicaceae | 8643 | | | |
| 5738 | Salix lasiolepis | Arroyo willow | Salicaceae | 8643 | | | |
| 5739 | Salix mackenziana | Mackenzie Willow | Salicaceae | 8643 | | | |
| 5740 | Salix matsudana | Corkscrew Willow | Salicaceae | 8643 | | | |
| 5741 | Salix myrsinifolia | Dark-Leaf Willow | Salicaceae | 8643 | | | |
| 5742 | salix pentandra | bay willow | Salicaceae | 8643 | | | |
| 5743 | Salix pishpekensis | Pishpek Willow | Salicaceae | 8643 | | | |
| 5744 | Salix purpurea | Dwarf Alaskan Blue Willow | Salicaceae | 8643 | | | |
| 5745 | Salix pyrifolia | Balsam Willow | Salicaceae | 8643 | | | |
| 5746 | Salix rigida | Heartleaf Willow | Salicaceae | 8643 | | | |
| 5747 | Salix rorida | Russian Willow, Siberian Willow | Salicaceae | 8643 | | | |
| 5748 | Salix sachalinensis | Sachalin Willow | Salicaceae | 8643 | | | |
| 5749 | salix scouleriana | scouler willow | Salicaceae | 8643 | | | |
| 5750 | Salix sericea | Silky Willow | Salicaceae | 8643 | | | |
| 5751 | Salix sitchensis | sitka willow | Salicaceae | 8643 | | | |
| 5752 | Salix taxifolia | Yewleaf Willow | Salicaceae | 8643 | | | |
| 5753 | Salix tracyii | Tracy’s Willow | Salicaceae | 8643 | | | |
| 5754 | Salix udensis | Asian Willow | Salicaceae | 8643 | | | |
| 5755 | Salix viminalis | Basket Willow | Salicaceae | 8643 | | | |
| 5756 | Salix x conquitertia | Hybrid Willow | Salicaceae | 8643 | | | |
| 5757 | Salix x sesquitertia | Sesquite hybrid Willow | Salicaceae | 8643 | | | |
| 5758 | Salix x smithiana | Silky leaf Osier | Salicaceae | 8643 | | | |
| 5759 | Samanea saman | Saman | Leguminosae | 6482 | | | |
| 5760 | Sambucus callicarpa | Pacific Elder, Coastal Red Elder | Adoxaceae (Caprifoliaceae) | 5993 | | | |
| 5761 | Sambucus canadensis | American Elder | Adoxaceae (Caprifoliaceae) | 5993 | | | |
| 5762 | Sambucus cerulea | Blueberry Elder | Caprifoliaceae | 5993 | | | |
| 5763 | Sambucus coerulea | Blueberry Elder | Adoxaceae (Caprifoliaceae) | 5993 | | | |
| 5764 | Sambucus glauca | Blue Elder | Adoxaceae (Caprifoliaceae) | 5993 | | | |
| 5765 | Sambucus melanocarpa | Blackbead Elder | Adoxaceae (Caprifoliaceae) | 5993 | | | |
| 5766 | Sambucus mexicana | Mexican Elder | Adoxaceae (Caprifoliaceae) | 5993 | | | |
| 5767 | Sambucus nigra | English Elder | Caprifoliaceae | 5993 | | | |
| 5768 | Sambucus racemosa | Red Elderberry | Adoxaceae (Caprifoliaceae) | 5993 | | | |
| 5769 | Sambucus sieboldiana | European Red Elderberry | Adoxaceae (Caprifoliaceae) | 5993 | | | |
| 5770 | Sambucus simpsonii | Common Elderberry | Adoxaceae (Caprifoliaceae) | 5993 | | | |
| 5771 | Sambucus tigranii | Black Russian Elderberry | Adoxaceae (Caprifoliaceae) | 5993 | | | |
| 5772 | Sandoricum borneensis | Sentul kapas | Meliaceae | 7970 | | | |
| 5773 | Sandoricum koetjape | Thitto | Meliaceae | 7970 | | | |
| 5774 | Sandwithia guyanensis | Makang | Euphorbiaceae | | | | |
| 5775 | Santalum acuminatum | Western Quandong SandalWood | Santalaceae | 7844 | | | |
| 5776 | Santalum ellipticum | Coastal Sandalwood | Santalaceae | 7844 | | | |
| 5777 | Santalum freycinetianum | Sandalwood | Santalaceae | 7844 | | | |
| 5778 | Santalum lanceolatum | Lanceleaf Sandalwood | Santalaceae | 7844 | | | |
| 5779 | Santiria oblongifolia | Karantai | Burseraceae | 7925 | | | |
| 5780 | Santiria tomentosa | Karantai | Burseraceae | 7925 | | | |
| 5781 | Sapindus drummondii | Western Soapberry | Sapindaceae | 7860 | | | |
| 5782 | Sapindus indica | Jaboncillo | Sapindaceae | 7860 | | | |
| 5783 | Sapindus marginatus | Florida Soapberry | Sapindaceae | 7860 | | | |
| 5784 | Sapium glandulosum | Haiahaia | Euphorbiaceae | 6173 | | | |
| 5785 | Sapium hippomane | Milk tree | Euphorbiaceae | 6173 | | | |
| 5786 | Sapium jamaicense | Lechero | Euphorbiaceae | 6173 | | | |
| 5787 | Sapium sebiferum | Chinese Tallow tree | Euphorbiaceae | 6173 | | | |
| 5788 | Sarcopteryx stipitata | Corduroy | Sapindaceae | 8033 | | | |
| 5789 | Sarcotheca diversifolia | Tabarus, Perapan Macar, Belimbing Bulat, Belimbing | Linaceae | 6776 | | | |
| 5790 | Sassafras varifolium | Sassafras, Variable Leaf | Lauraceae | 6899 | | | |
| 5791 | Saxegothea conspicua | Prince Albert’s Yew | Podocarpaceae | | | | |
| 5792 | Scaphium macropodum | Kembang Semangkok | Sterculiaceae | 7066 | | | |
| 5793 | Scaphium scaphigerum | Kembang | Sterculiaceae | 7066 | | | |
| 5794 | Scheelea fairchildensis | Fairchild’s Palm | Palmae | | | | |
| 5795 | Schefflera decaphylla | Matchwood | Araliaceae | 5432 | | | |
| 5796 | Schefflera frutescens | Boxwood, Florida | Araliaceae | 5432 | | | |
| 5797 | Schefflera guanayensis | Matchwood | Araliaceae | 5432 | | | |
| 5798 | Schefflera morontoni | Karohoro | Araliaceae | 5432 | | | |
| 5799 | Schinopsis quebracho-colorado | Quebracho Colorado | Anacardiaceae | 7901 | | | |
| 5800 | Schinus molle | Brazilian Peppertree, Peruvian Peppertree | Anacardiaceae | 7902 | | | |
| 5801 | Schinus terebinthifolia | Peppertree, Brazilian | Anacardiaceae | 7902 | | | |
| 5802 | Schleichera trijuga | Takraw | Rutaceae | 8034 | | | |
| 5803 | Schoepfia schreberi | Graytwig, Sak Bake | Olacaceae | 7819 | | | |
| 5804 | Sciadopitys verticillata | Umbrella Pine | | 5833 | | | (Thunb.) Siebold & Zucc. |
| 5805 | Sclerocarya caffra | Marula | Anacardiaceae | 7903 | | | |
| 5806 | Sclerolobium bracteosum | Beukenhout | Leguminosae (Caesalpinioideae) | | | | |
| 5807 | Sclerolobium guianense | Kaditiri | Leguminosae (Caesalpinioideae) | | | | |
| 5808 | Sclerolobium paraense | Brazilian Firetree | Leguminosae (Caesalpinioideae) | | | | |
| 5809 | Sclerolobium parahybum | Gavilan | Leguminosae (Caesalpinioideae) | | | | |
| 5810 | Scleronema micranthum | Cardeiro | Bombacaceae | 6987 | | | |
| 5811 | Scyphostegia borneesis | | | 8779 | | | Stapf. |
| 5812 | Sebastiania adenophora | Che-chem Blanco | Euphorbiaceae | 6176 | | | |
| 5813 | Senna alata | Guajava | Leguminosae | 6494 | | | |
| 5814 | Senna racemosa | Xkaniol | Leguminosae | 6494 | | | |
| 5815 | Sequoia gigantea | Giant Sequoia | Taxodiaceae | | | | |
| 5816 | Sequoiadendron gigantum | Giant Redwood | Taxodiaceae | 5873 | | | |
| 5817 | Serenoa repens | Saw Palmetto | Palmae (Corphoideae) | 5573 | | | |
| 5818 | Serianthes kenehirae | Ukall | Leguminosae (Mimosoidea) | 6495 | | | |
| 5819 | Serianthes melanesica | Vaivai-ni-veikau | Leguminosae (Mimosoidea) | 6495 | | | |
| 5820 | shepherdia argentea | silver buffaloberry | Elaeagnaceae | 7340 | | | |
| 5821 | Shorea almon | Almon, Seraya kerukup (Sepilok arb.) | Dipterocarpaceae | 7004 | | | |
| 5822 | Shorea argentifolia | Meranti binatoh, Seraya duan mas | Dipterocarpaceae | 7004 | | | |
| 5823 | Shorea assadoensis | Tianong | Dipterocarpaceae | 7004 | | | |
| 5824 | Shorea atrinervosa | Selangen batu hitam | Dipterocarpaceae | 7004 | | | |
| 5825 | Shorea biawak | Selangen batu biawak | Dipterocarpaceae | 7004 | | | |
| 5826 | Shorea bractea | Meranti | Dipterocarpaceae | 7004 | | | |
| 5827 | Shorea bracteolata | White Meranti | Dipterocarpaceae | 7004 | | | |
| 5828 | Shorea bullata | Meranti melechue | Dipterocarpaceae | 7004 | | | |
| 5829 | Shorea confusa | Seraya | Dipterocarpaceae | 7004 | | | |
| 5830 | Shorea coreacea | Meranti Seraya | Dipterocarpaceae | 7004 | | | |
| 5831 | Shorea cristata | Seraya merah | Dipterocarpaceae | 7004 | | | |
| 5832 | Shorea curtisii | Saya Deng, Dark Red Meranti | Dipterocarpaceae | 7004 | | | |
| 5833 | Shorea domatiosa | Selangen batu | Dipterocarpaceae | 7004 | | | |
| 5834 | Shorea dyerii | Meranti tangkai | Dipterocarpaceae | 7004 | | | |
| 5835 | Shorea exelliptica | Sel. batu tembaga | Dipterocarpaceae | 7004 | | | |
| 5836 | Shorea falciferoides | Selangan batu laut | Dipterocarpaceae | 7004 | | | |
| 5837 | Shorea fallax | Engkabamng-layer, Seraya duan kasar | Dipterocarpaceae | 7004 | | | |
| 5838 | Shorea floribunda | Payawm | Dipterocarpaceae | 7004 | | | |
| 5839 | Shorea glaucescens | Sel. batu laut | Dipterocarpaceae | 7004 | | | |
| 5840 | Shorea gratissima | White Meranti | Dipterocarpaceae | 7004 | | | |
| 5841 | Shorea gysbertsiana | Kwang jantong | Dipterocarpaceae | 7004 | | | |
| 5842 | Shorea havilandii | Sel. bata asam | Dipterocarpaceae | 7004 | | | |
| 5843 | Shorea hopeifolia | Seraya juning jantan | Dipterocarpaceae | 7004 | | | |
| 5844 | Shorea hunstieri | Red Balau | Dipterocarpaceae | 7004 | | | |
| 5845 | Shorea hypoleuca | Sel. batu kelabu | Dipterocarpaceae | 7004 | | | |
| 5846 | Shorea inappendiculata | Sel. batu | Dipterocarpaceae | 7004 | | | |
| 5847 | Shorea inequillateralis | Semayor | Dipterocarpaceae | 7004 | | | |
| 5848 | Shorea johorensis | Seraya majau | Dipterocarpaceae | 7004 | | | |
| 5849 | Shorea kudatensis | Seraya kuning kudat | Dipterocarpaceae | 7004 | | | |
| 5850 | Shorea laeviflora | Balau | Dipterocarpaceae | 7004 | | | |
| 5851 | Shorea laevis | Red balau, Sel. batu kumus | Dipterocarpaceae | 7004 | | | |
| 5852 | Shorea leptoclados | Light Red Meranti, Seraya majau | Dipterocarpaceae | 7004 | | | |
| 5853 | Shorea leptoderma | Sel batu biabas | Dipterocarpaceae | 7004 | | | |
| 5854 | Shorea macroptera | Melanti, Seraya Melanti | Dipterocarpaceae | 7004 | | | |
| 5855 | Shorea maxwelliana | Balau, Sel. batu asam | Dipterocarpaceae | 7004 | | | |
| 5856 | Shorea mecistopteryx | Meranti kawang, Kawang burong | Dipterocarpaceae | 7004 | | | |
| 5857 | Shorea minor | Seraya kechil | Dipterocarpaceae | 7004 | | | |
| 5858 | Shorea mirabilis | Sel. batu | Dipterocarpaceae | 7004 | | | |
| 5859 | Shorea obscura | Sel. batu tandok | Dipterocarpaceae | 7004 | | | |
| 5860 | Shorea obtusa | Thitya | Dipterocarpaceae | 7004 | | | |
| 5861 | Shorea ovalis | Seraya kepong | Dipterocarpaceae | 7004 | | | |
| 5862 | Shorea parviflora | Meranti Shamak | Dipterocarpaceae | 7004 | | | |
| 5863 | Shorea parvifolia | Seraya punai | Dipterocarpaceae | 7004 | | | |
| 5864 | Shorea pauciflora | Dark Red Meranti, Ora sulok | Dipterocarpaceae | 7004 | | | |
| 5865 | Shorea phillipinensis | Manggasinoro | Dipterocarpaceae | 7004 | | | |
| 5866 | Shorea pilosa | Kawang bulu | Dipterocarpaceae | 7004 | | | |
| 5867 | Shorea platyclados | Seraya bukit | Dipterocarpaceae | 7004 | | | |
| 5868 | Shorea quadrinervis | Seraya urat empat | Dipterocarpaceae | 7004 | | | |
| 5869 | Shorea resina-negra | Yellow Meranti | Dipterocarpaceae | 7004 | | | |
| 5870 | Shorea rubella | Seraya daun merah | Dipterocarpaceae | 7004 | | | |
| 5871 | Shorea scrobiculata | Sel. batu dersisek | Dipterocarpaceae | 7004 | | | |
| 5872 | Shorea seminis | Sel batu terendak | Dipterocarpaceae | 7004 | | | |
| 5873 | Shorea squamata | Mayapis | Dipterocarpaceae | 7004 | | | |
| 5874 | Shorea superba | Selangan batu-duan | Dipterocarpaceae | 7004 | | | |
| 5875 | Shorea symingtonii | Melapi kuning | Dipterocarpaceae | 7004 | | | |
| 5876 | Shorea uliginosa | Meranti bakau | Dipterocarpaceae | 7004 | | | |
| 5877 | Shorea waltoni | Seraya kelabu | Dipterocarpaceae | 7004 | | | |
| 5878 | Shorea xanthophylla | Seraya kuning barun | Dipterocarpaceae | 7004 | | | |
| 5879 | Sickingia klugei | Brasilette | Rubiaceae | | | | |
| 5880 | Sickingia salvadorensis | Palo Colorado | Rubiaceae | | | | |
| 5881 | sideroxylon lanuginosum | gum bumelia | Sapotaceae | 8170 | | | |
| 5882 | Simaba cedron | Hikuribianda | Simabaceae | | | | |
| 5883 | Simaba glauca | Marupa | Simabaceae | | | | |
| 5884 | Simaba guianensis | Puca quiro | Simabaceae | | | | |
| 5885 | Simaba multiflora | Hatchiballi | Simabaceae | | | | |
| 5886 | Simaruba amara | Simaruba | Simaroubiaceae | | | | |
| 5887 | Simaruba glauca | Simaruba | Simaroubiaceae | | | | |
| 5888 | Simira salvadorensis | Palo Colorado | Rubiaceae | | | | |
| 5889 | Sindora beccariana | Sepitir | Leguminosae (Caesalpinioideae) | 6497 | | | |
| 5890 | Sindora cochinchinensis | Makato | Leguminosae (Caesalpinioideae) | 6497 | | | |
| 5891 | Sindora irpicina | Sepitur | Leguminosae (Caesalpinioideae) | 6497 | | | |
| 5892 | Sindora liiocarpa | Sepitir | Leguminosae (Caesalpinioideae) | 6497 | | | |
| 5893 | Sindora siamensis | Te-maka, Makatae | Leguminosae | 6497 | | | |
| 5894 | Sindora tonkinensis | Ma Kha Tae | Leguminosae (Caesalpinioideae) | 6497 | | | |
| 5895 | Sindora velutina | Sepitur beludu besar | Leguminosae (Caesalpinioideae) | 6497 | | | |
| 5896 | Sindora wallichii | Sepitur duan tebal | Leguminosae (Caesalpinioideae) | 6497 | | | |
| 5897 | Sinowilsonia henryii | Sir Ernest Henry Wilsonia | Hamamelidaceae | | | | |
| 5898 | Siparuna guianensis | Ant Bush | Monimiaceae | 6916 | | | |
| 5899 | Siparuna reginae | Ant Bush | Monimiaceae | 6916 | | | |
| 5900 | Siparuna surinamensis | Muneridan | Monimiaceae | 6916 | | | |
| 5901 | Siphonodon australe | Blush Alder | Celastaceae | 5758 | | | |
| 5902 | Sloanea australis | Maiden’s Blush | Elaeocarpaceae | 7009 | | | |
| 5903 | sloanea australis ssp parviflora | Blush Alder | Elaeocarpaceae | 7009 | | | |
| 5904 | Sloanea guianensis | Aruadan | Elaeocarpaceae | 7009 | | | |
| 5905 | Sloanea schomburgki | Ubudiballi | Elaeocarpaceae | 7009 | | | |
| 5906 | Sloanea woolsii | Yellow Carabeen | Elaeocarpaceae | 7009 | | | |
| 5907 | Socrates exorrhiza | Socrates Palm | Palmae | | | | |
| 5908 | Sophora japonica | Japanese Pagoda Tree | Leguminosae | 6498 | | | |
| 5909 | Sophora secundiflora | Mountain Laurel | Leguminosae (Papilionoideae) | 6498 | | | |
| 5910 | Sophora tetraptera | Kowhai | Leguminosae | 6498 | | | |
| 5911 | sorbus acuparia | rowan | Rosaceae | 7587 | | | |
| 5912 | Sorbus alnifolia | Pad-bae Namu | Rosaceae | 7587 | | | |
| 5913 | Sorbus americana | American Mountain Ash | Rosaceae | 7587 | | | |
| 5914 | Sorbus aria | European White Mountain Ash | Rosaceae | 7587 | | | |
| 5915 | sorbus aucuparia | european mountain ash | Rosaceae | 7587 | | | |
| 5916 | Sorbus austriaca | Austrian Mountain Ash | Rosaceae | 7587 | | | |
| 5917 | Sorbus decora | Showy Mountain Ash | Rosaceae | 7587 | | | |
| 5918 | Sorbus devoniensis | British Mountain Ash | Rosaceae | 7587 | | | |
| 5919 | Sorbus domestica | Service Tree | Rosaceae | 7587 | | | |
| 5920 | Sorbus folgnerii | Chinese Mountain Ash | Rosaceae | 7587 | | | |
| 5921 | Sorbus groenlandica | Northern Mountain Ash | Rosaceae | 7587 | | | |
| 5922 | Sorbus harrowiana | Yunnan Mountain Ash | Rosaceae | 7587 | | | |
| 5923 | Sorbus hupehensis | Hupeh Mountain Ash | Rosaceae | 7587 | | | |
| 5924 | Sorbus insignis | Yunnan Mountain Ash | Rosaceae | 7587 | | | |
| 5925 | Sorbus intermedia | Swedish Mountain Ash | Rosaceae | 7587 | | | |
| 5926 | Sorbus mougeottii | Mougeot Mountain Ash | Rosaceae | 7587 | | | |
| 5927 | Sorbus orientalis | Oriental Mountain Ash | Rosaceae | 7587 | | | |
| 5928 | Sorbus prattii | xi kang hua qi | Rosaceae | 7587 | | | |
| 5929 | Sorbus sargentiana | Sargent’s Mountain Ash | Rosaceae | 7587 | | | |
| 5930 | Sorbus serotina | Plum Leaf Mountain Ash | Rosaceae | 7587 | | | |
| 5931 | Sorbus setschuanensis | Szechuan Mountain Ash | Rosaceae | 7587 | | | |
| 5932 | Sorbus sitchensis | Sitka Mountain Ash | Rosaceae | 7587 | | | |
| 5933 | Sorbus terminalis | Maple Servicetree | Rosaceae | 7587 | | | |
| 5934 | Sorbus toringo | Toringo Mountain Ash | Rosaceae | 7587 | | | |
| 5935 | Sorbus torminalis | Oriental Mountain Ash | Rosaceae | 7587 | | | |
| 5936 | Sorbus vestita | Himalayan Mountain Ash | Rosaceae | 7587 | | | |
| 5937 | Spartium junceum | Weaver’s Broom | Leguminosae (Papilionoideae) | 6499 | | | |
| 5938 | Spondias borbonica | Hog Plum | Anacardiaceae | 7906 | | | |
| 5939 | Spondias cirouella | Yellow Mombin | Anacardiaceae | 7906 | | | |
| 5940 | Spondias cytherea | Golden Apple | Anacardiaceae | 7906 | | | |
| 5941 | Spondias dulcis | Otaheite apple, Otaheite plum | Anacardiaceae | 7906 | | | |
| 5942 | Spondias lutea | Hog Plum | Anacardiaceae | 7906 | | | |
| 5943 | Spondias purpurea | Purple Mombin | Anacardiaceae | 7906 | | | |
| 5944 | Spondias radlkoferi | Jobo | Anacardiaceae | 7906 | | | |
| 5945 | Staphylea pinnata | European Bladdernut | Staphylaceae | 8069 | | | |
| 5946 | Staudtia gabonensis | Bocapi | Myristicaceae | 6931 | | | |
| 5947 | Stelechocarpus burahol | Kepel | Annonaceae | 6829 | | | |
| 5948 | Stemonurus luzoniensis | Mabunot | Icacinaceae | 5801 | | | |
| 5949 | Stenocarpus reticulatus | Black Silky Oak | Proteaceae | 7372 | | | |
| 5950 | Stenocarpus salignus | Red Silky Oak | Proteaceae | 7372 | | | |
| 5951 | Sterculia alata | Tong jing | Sterculiaceae | 7068 | | | |
| 5952 | Sterculia cordata | Kalumpang | Sterculiaceae | 7068 | | | |
| 5953 | Sterculia oblongata | Let Kok | Sterculiaceae | 7068 | | | |
| 5954 | Sterculia spectabilis | Malabuho | Sterculiaceae | 7068 | | | |
| 5955 | Strychnos decussata | Cape Teak | Strychnaceae (Loganiaceae) | 6665 | | | |
| 5956 | Styphnolobium japonicum | Pagoda tree | Leguminosae | | | | |
| 5957 | Styrax americana | American Snowbell | Styracaceae | 8452 | | | |
| 5958 | Styrax japonicus | Japanese Snowbell | Styracaceae | 8452 | | | |
| 5959 | Styrax obtusa | Jjogdongbaeg Namu | Styracaceae | 8452 | | | |
| 5960 | Suriana maritima | Bay Cedar | Surianaceae | | | | |
| 5961 | Swartzia benthamiana | Itikiboroballi | Leguminosae (Papilionoideae) | 6506 | | | |
| 5962 | Swartzia brachyrachis | Ironwood | Leguminosae (Papilionoideae) | 6506 | | | |
| 5963 | Swartzia dipetala | Takuba | Leguminosae (Papilionoideae) | 6506 | | | |
| 5964 | Swartzia jenmannii | Parakusan | Leguminosae (Papilionoideae) | 6506 | | | |
| 5965 | Swartzia latifolia | Winewood | Leguminosae (Papilionoideae) | 6506 | | | |
| 5966 | Swartzia lelogyne | Brown Ebony | Leguminosae (Papilionoideae) | 6506 | | | |
| 5967 | Swartzia longipedicellata | Serebedan | Leguminosae | 6506 | | | |
| 5968 | Swartzia lundellii | Katalox | Leguminosae (Papilionoideae) | 6506 | | | |
| 5969 | Swartzia oblanciolata | Sarebedan | Leguminosae | 6506 | | | |
| 5970 | Swartzia panacoco | Guyana Blackwood | Leguminosae (Papilionoideae) | 6506 | | | |
| 5971 | Swartzia rosea | Katalox | Leguminosae (Papilionoideae) | 6506 | | | |
| 5972 | Swartzia schomburghki | Ironwood | Leguminosae (Papilionoideae) | 6506 | | | |
| 5973 | Swartzia similis | Parakusan | Leguminosae (Papilionoideae) | 6506 | | | |
| 5974 | Swartzia sprucei | Itikiboroballi | Leguminosae | 6506 | | | |
| 5975 | Swartzia tomentosa | Brazilian ebony | Leguminosae | 6506 | | | |
| 5976 | Swartzia xanthopetala | Itikiboroballi | Leguminosae (Papilionoideae) | 6506 | | | |
| 5977 | Sweetia nitens | Kamarakata | Leguminosae | 6507 | | | |
| 5978 | Sweetia praeclara | Blackheart | Leguminosae | 6507 | | | |
| 5979 | Swietenia candollei | Venezuelan Mahogany | Meliaceae | 7972 | | | |
| 5980 | Swietenia humilis | Pacific Coast Mahogany | Meliaceae | 7972 | | | |
| 5981 | Symingtonia populnea | Malayan aspen | Hamamelidaceae | | | | |
| 5982 | Sympetalandra borneensis | Merbau Lalat | Leguminosae (Caesalpinioideae) | 6508 | | | |
| 5983 | Symphonia gabonensis | Hog Gum, Osol | Guttiferae | 8111 | | | |
| 5984 | Symphonia louvelii. | Karamanni | Guttiferae | 8111 | | | |
| 5985 | Symplocos chiriquensis | Congonha | Symplocaceae | 5939 | | | |
| 5986 | Symplocos lucida | Sweetleaf | Symplocaceae | 5939 | | | |
| 5987 | Symplocos stawelii | White Hazelwood | Symplocaceae | 5939 | | | |
| 5988 | Symplocos tinctoria | Common Sweetleaf | Symplocaceae | 5939 | | | |
| 5989 | Syncarpia subargentea | Ironwood Box | Myrtaceae | 7230 | | | |
| 5990 | Synoum glandulosum | Red Sycamore | Meliaceae | 7974 | | | |
| 5991 | Synoum muellerii | Scentless Rosewood | Meliaceae | 7974 | | | |
| 5992 | Syringa persica | Persian Lilac | Oleaceae | 8290 | | | |
| 5993 | syringa reticula | Amur, Lilac, Korean Lilac | Oleaceae | 8290 | | | |
| 5994 | Syringa vulgaris | Common Lilac, Lilac bush | Oleaceae | 8290 | | | |
| 5995 | Syzygium corynanthum | Killarney Satinash | Myrtaceae | 7231 | | | |
| 5996 | Syzygium cumini | Black Java Plum, Satinash | Myrtaceae | 7231 | | | |
| 5997 | Syzygium jambolanum | Plum, Jambolin | Myrtaceae | 7231 | | | |
| 5998 | Syzygium panuculatum | Brush Cherry | Myrtaceae | 7231 | | | |
| 5999 | Syzygium samarangense | Java Apple, Semarang Rose Apple | Myrtaceae | 7231 | | | |