School Science Lessons
Biology
2026-09-25

Common names of plants, S to Z

Contents
| S. | T. | U. | V. | W. | X. | Y. | Z. |

S
Genus names S, (Saccharum to Syzygium)
Sacred bamboo (Nandina domestica), Berberidaceae
Safflower (Carthamus tinctorius), Asteraceae
Saffron (Crocus sativus), Iridaceae
Sage (Salvia officinalis), Lamiaceae
Sago palm (Cycas pectinata), Cycadophyta Division
Saigon cinnamon (Cinnamomum loureirii), Lauraceae
Sainfoin (Onobrychis vicifolia), Fabaceae
Salad burnet (Sanguisorba minor), Rosaceae
Salak palm (Salacca zalacca), Arecaceae
Salsify (Tragopogon porrifolius), Asteraceae
Saltbush (Atriplex nummularia), Amaranthaceae
Samphire (Salicornia quinqueflora)
Sand plantain (Plantago psyllium), Plantaginaceae
Sandalwood (Santalum album), Santalaceae
Sandpaper fig (Ficus coronata), Moraceae
Santol (Sandoricum koetjape), Meliaceae
Santolina (Santolina virens), Asteraceae
Sapodilla (Manilkara zapota), Sapotaceae
Sargassumt, Division Charophyta
Sarsaparilla (Smilax aristolochiifolia), Smilacaceae
Saskatoon serviceberry (Amelanchier alnifolia), Rosaceae
Sassafras tree (Sassafras albidum), Lauraceae
Satsuma mandarin (Citrus reticulata subsp. unshiu), Rutaceae
Savory (Satureja repandra), Lamiaceae
Savoy cabbage (Brassica oleracea var. sabauda), Brassicaceae
Saw banksia (Banksia serrata), Proteaceae
Saw palmetto (Serenoa repens), Arecaceae
Sawsedge (Gahnia aspera), Cyperaceae
Scaldhead (Cynoglossum officinale), Boraginaceae
Scallion (Allium cepa), Amaryllidaceae
Scaly ash (Ganophyllum falcatum), Sapindaceae
Scaly zamia (Lepidozamia peroffskyana), Phylum Cycadophyta
Scarlet fuchsia (Graptophyllum excelsum), Acanthaceae
Scary cat plant (Plectranthus caninus), Lamiaceae
Scotch broom (Cytisus scoparius), Fabaceae
Scotch thistle (Onopordum acanthium), Asteraceae
Scrambling lily (Geitonoplesium cymosum), Asphodelaceae
Screwpine (Pandanus odifer), Pandanaceae
Scrub bloodwood (Baloghia inophylla), Euphorbiaceae
Scrub nettle (Urtica incisa), Urticaceae
Scurvy weed (Commelina cyanea), Commelinaceae
Scurvy-grass sorrel (Oxalis enneaphylla), Oxalidaceae
Sea celery (Apium prostatum), Apiaceae
Sea grape (Coccoloba uvifera), Polygonaceae
Sea holly (Eryngium maritimum), Apiaceae
Sea mango (Cerbera manghas), Apocynaceae
Sea onion (Ornithogalum caudatum), Asparagaceae
Sea purslane (Sesuvium portulacastrum), Aizoaceae
Seaberry salt-bush (Rhagodia candolleana), Amaranthaceae
Seablite (Suaeda australis), Amaranthaceae
Sedge (Carex appressa), Cyperaceae
Seeds of heaven (Aframomum melegueta), Zingiberaceae
Self heal (Prunella vulgaris), Lamiaceae
Seliasian wood (Cinnamomum parhenoxylon), Lauraceae
Senna (Senna alexandrina), Fabaceae
Sensitive plant (Mimosa pudica), Fabaceae
Serrated tussock (Nassella trichotoma), Poaceae
Sesame (Sesamum indicum), Pedaliaceae
Sessile joyweed (Alternanthera sessilis), Amaranthaceae
Seville orange (Citrus x aurantium), Rutaceae
Shallot (Allium cepa var. aggregatum), Amaryllidaceae
Shasta daisy (Leucanthemum x superbum), Asteraceae
She-oak (Casuarina equisetifolia), Casuarinaceae
Shellflower (Alpinia nutans), Zingiberaceae
Shēng dì huáng (Rehmannia glutinosa), Orobanchaceae
Shepherd's purse (Capsella bursa-pastoris), Brassicaceae
Shrubby cinquefoil (Diasphora fruticosa), Rosaceae
Siam weed (Chromolaena odorata), Asteraceae
Siberian ginseng (Eleutherococcus senticosus), Araliaceae
Siberian motherwort (Leonurus sibiricus), Lamiaceae
Sickle senna (Cassia tora), Fabaceae
Sicklepod (Senna hirsuta), Fabaceae
Sicklewort (Prunella vulgaris), Lamiaceae
Signal grass (Brachiaria decumbens), Poaceae
Silk tree (Albizia julibrissin), Fabaceae
Silky myrtle (Decaspermum humile), Myrtaceae
Silky wattle (Acacia holosericea), Fabaceae
Silver turkeybush (Eremophila bowmanii), Scrophulariaceae
Silver tussock grass, (Poa cita), Poaceae
Silverleaf nightshade (Solanum elaeagnifolium), Solanaceae
Sisal (Agave sisalana), Asparagaceae
Skeleton weed (Chondrilla juncea), Asteraceae
Skirret (Sium sisarum), Aliaceae
Skullcap (Scutellaria galericulata), Lamiaceae
Skunkvine (Paederia foetida), Rubiaceae
Slender mint (Mentha diemenica), Lamiaceae
Slippery elm (Ulmus rubra), Ulmaceae
Sloe plum (Prunus spinosa), Rosaceae
Small-flowered willow herb (Epilobium parviflorum), Onagraceae
Small-leaved tamarind (Diploglottis campbellii), Sapindaceae
Smartweed (Persicaria hydropiper), Polygonaceae
Smellage (Levisticum officinale), Apiaceae
Smith's tamarind (Diploglottis smithii), Sapindaceae
Smooth Davidson's plum (Davidsonia johnsonii), Cunoniaceae
Snake gourd (Trichosanthes cucumerina), Cucurbitaceae
Snapdragon (Antirrhinum majus), Plantaginaceae
Sneezewort (Achillea ptarmica), Asteraceae
Soapwort (Saponaria officinalis), Caryophilaceae
Society garlic (Tulbaghia violacea), Amaryllidaceae
Solitary fishtail palm (Caryota urens), Arecaceae
Solomon's seal (Polygonatum multiflorum), Asparagaceae
Soncoya (Annona purpurea), Annonaceae
Sorghum (Sorghum bicolor), Poaceae
Sorrel (Rumex acetosa), Polygonaceae
Sour orange (Citrus x aurantium subsp. amara), Rutaceae
Sourgrass (Oxalis pes-caprae), Oxalidaceae
Soursop (Annona muricata), Annonaceae
Southern marigold (Tagetes minuta), Asteraceae
Southernwood (Artemisia abrotanum), Asteraceae
Soya bean (Glycine max), Fabaceae
Smooth stonewort (Nitella flexilis), Division Charophyta
Spanish flag (Ipomoea lobata), Convolvulaceae
Spanish jasmine (Jasminum grandiflorum), Oleaceae
Spanish lime (Melicoccus bijugatus), Sapotaceae
Spanish moss (Tillandsia usneoides), Bromeliaceae
Spanish wood thyme (Thymus mastichina), Lamiaceae
Spear thistle (Cirsium vulgare), Asteraceae
Spearmint (Mentha spicata), Lamiaceae
Spear-leaved dioscorea (Dioscorea hastifolia), Dioscoreaceae
Speedwell (Veronica officinalis), Scrophulariaceae
Spicebush (Lindera benzoin), Lauraceae
Spicy globe basil (Ocimum basilicum 'Spicy globe'), Lamiaceae
Spider lily (Hymenocallis littoris), Amaryllidaceae
Spider milkweed (Asclepias asperula), Apocynaceae
Spiderwort (Tradescantia spathacea), Commelinaceae
Spiked ginger lily (Hedychium spicatum), Zingiberaceae
Spikenard (Nardostachys jatamansi), Caprifoliaceae
Spinach (Spinacea oleracea), Amaranthaceae
Spiny bear's breech (Acanthus spinosus), Acanthaceae
Spiny-head mat-rush (Lomandra longifolia)
Spiny rush (Juncus acutus), Juncaceae
Spirulina (Arthrospira species), Cyanobacteria
Spotted dead-nettle (Lamium maculatum), Lamiaceae
Spotted gum (Corymbia maculata), Myrtaceae
Spring onion (Allium cepa), Amaryllidaceae
Spruce trees (Picea alba), Pinaceae
Squash (Cucurbita moschata), Cucurbitaceae
Squaw vine (Mitchella repens), Rubiaceae
Sri Lankan ironwood tree (Mesua ferrea), Calophyllaceae
St John's bread (Ceratonia siliqua), Fabaceae
St John's wort (Hypericum perforatum), Hypericaceae
St Mary's thistle (Silybum marianum), Asteraceae
St Paul's wort (Siegesbeckia orientalis), Asteraceae
St Peter's keys (Primula veris), Primulaceae
Staghorn fern (Platycerium superbum), Polypodiaceae
Star anise (Illicium verum), Illiciaceae
Star apple (Chrysophyllum cainito), Sapotaceae
Star of Bethlehem (Ornithogalum umbellatum), Asparagaceae
Starfruit (Averrhoa carambola), Oxalidaceae
Stevia (Stevia rebaudiana), Asteraceae
Stinging nettle (Urtica dioica), Urticaceae
Stinging serpent (Cevallia sinuata), Loasaceae
Stinking hellebore (Helleborus foetidus), Ranunculaceae
Stinking iris (Iris foetidissima), Iridaceae
Stone mint (Cunila origanoides), Lamiaceae
Stoneworts (Chara vulgaris), Charophyta
Strawberry, (Fragaria x ananassa), Rosaceae
Sturt's desert pea (Swainsona formosa), Fabaceae
Stylo (Stylosanthes guianensis), Fabaceae
Subterranean clover (Trifolium subterraneum), Fabaceae
Sudachi (Citrus sudachi), Rutaceae
Sugar apple (Annona squamosa), Annonaceae
Sugar beet (Beta vulgaris subsp. vulgaris), Amaranthaceae
Sugar maple (Acer saccharum), Sapindaceae
Sugarcane (Saccharum officinarium), Poaceae
Suma (Hebanthe erianthos), Amaranthaceae
Summer savory (Satureja hortensis), Lamiaceae
Sundew (Drosera rotundifolia), Droseraceae
Sunflower (Helianthus annuus), Asteraceae
Sunn hemp (Crotalaria juncea), Fabaceae
Supplejack (Ventilago viminalis), Rhamnaceae
Surinam spinach (Talinum triangulare), West Africa, Portulaceae
Swamp bloodwood (Corymbia ptychocarpa), Myrtaceae
Swamp wattle (Acacia retinodes), Fabaceae
Swan river daisy (Brachyscome iberidifolia), Asteraceae
Swede (Brassica napus var. napobrassica), Brassicaceae
Sweet annie (Artemisia annua), Asteraceae
Sweet apple-berry , (Billardiera cymosa), Pittosporaceae
Sweet basil (Ocimum basilicum), Lamiaceae
Sweet calabash (Passiflora maliformis), Passifloraceae
Sweet cecily (Myrrhis odorata), Apiaceae
Sweet flag (Acorus calamus), Acoraceae
Sweet golden rod (Solidago odora), Asteraceae
Sweet granadilla (Passiflora ligularis), Passifloraceae
Sweet grass (Hierochloe odorata), Poaceae
Sweet leaf (Sauropus androgynus), Phyllanthaceae
Sweet lime (Citrus limetta), Rutaceae
Sweet marigold (Tagetes lucida), Asteraceae
Sweet myrtle (Gossia fragrantissima), Myrtaceae
Sweet orange (Citrus x sinensis), Rutaceae
Sweet pea (Lathyrus odoratus), Fabaceae
Sweet potato ((Ipomoea batatas), Convolvulaceae
Sweet rocket (Hesperis matronalis), Brassicaceae
Sweet sand-verbena (Abronia fragrans), Nyctaginaceae
Sweet sarsaparilla (Smilax glyciphylla), Smilacaceae
Sweet violet (Viola odorata), Violaceae
Sweet white kunzea (Kunzea ambigua)
Sweet woodruff (Galium odoratum), Rubiaceae
Sweet wormwood (Artemisia afra), Asteraceae
Sweet yellow clover (Melitotus officinalis), Fabaceae
Sweetgale (Myrica gale), Myricaceae
Sweetleaf (Stevia rebaudiana), Asteraceae
Sweetsop (Annona squamosa), Annonaceae
Swertia (Swertia chirata), Gentianaceae
Sycamore (Acer pseudoplatanus), Sapindaceae
Sydney red gum (Angophora costata), Myrtaceae
Syzygium (Syzygium alliiligneum), Myrtaceae

T
Genus names T, (Tabebuia to Typhonium)
Tahitian lime (Citrus x latifolia), Rutaceae
Tahitian screwpine (Pandanus tectorius), Arecaceae
Tailed pepper (Piper cubeba), Piperaceae
Talipot palm (Corypha umbraculifera), Arecaceae
Tamarillo (Solanum betaceum), Solanaceae
Tamarind (Tamarindus indica), Fabaceae
Tampala (Amaranthus tricolor), Amaranthaceae
Tanami apple (Solanum succosum), Solanaceae
Tangelo (Citrus x tangelo), Rutaceae
Tangerine (Citrus tangerina), Rutaceae
Tangor (Citrus reticulata x sinensis)
Tanjong tree (Mimusops elengi), Sapotaceae
Tannia (Xanthosoma saggittifolium), Araceae
Tansy (Tanacetum vulgare), Asteraceae
Tarot (Colocasia esculenta), Araceae
Tarragon (Artemisia dracunculus), Asteraceae
Tasman flax-lily (Dianella tasmanica), Aspodelaceae
Tasmanian bluegum Eucalyptus globulus, Myrtaceae
Tasmanian snow berry (Gaultheria hispida), Ericaceae
Tatsoi (Brassica rapa subsp. narinosa), Brassicaceae
Tea plant (Camellia sinensis), Theaceae
Tea tree (Leptospermum petersonii)
Teasel (Dipsacus japonicus), Dipsacaceae
Temulawak (Curcuma zanthorrhiza), Zingiberaceae
Texas mountain laurel (Dermatophyllum secundiflorum), Fabaceae
Thai basil (Ocimum basilicum var. thyrsiflorum), Lamiaceae
Thale cress (Arabidopsis thaliana), Brassicaceae
Thorn apple (Datura stromonium), Solanaceae
Thyme (Thymus vulgaris), Lamiaceae
Thyme-leaved spurge (Euphorbia thymifolia), Euphorbiaceae
Tingletongue (Dinosperma erythrococcum), Rutaceae
Tobacco plant (Nicotiana tabacum), Solanaceae
Toadflax (Linaria vulgaris), Plantaginaceae
Tobacco weed (Elephantopus mollis), Asteraceae
Tomato plant (Solanum lycopersicum), Solanaceae
Tonka bean (Dipteryx odorata), Fabaceae
Toothache plant (Acmella oleracea), Asteraceae
Tormentilla (Potentilla erecta), Rosaceae
Tossa jute (Corchorus olitorius), Malvaceae
Tradescantia (Tradescantia andersonia), Commelinaceae
Tragacanth (Astragalus gummifer), Fabaceae
Trailing indigo (Indigofera enneaphylla), Fabaceae
Tree fern (Cyathea cooperi), Cyathaceae
Tree germander (Teucrium fruticans), Lamiaceae
Tree mugwort (Artemisia verlotiorum), Asteraceae
Tree of heaven (Ailanthus altissima), Simaroubaceae
Tree waratah (Alloxylon flammeum), Proteaceae
Trifoliate orange (Citrus trifoliata), Rutaceae
Tropical banksia , (Banksia dentata), Proteaceae
True indigo (Indigofera tinctoria), Fabaceae
Truffles (Tuber melanosporum), Tuberaceae
Trumpet bush (Tecoma stans), Bignoniaceae
Trumpet flower (Incarvillea sinensis), Bignoniaceae
Trumpet weed (Eupatorium purpureum), Asteraceae
Tuberose (Polianthes tuberosa), Asparagaceae
Tuckeroo (Cupaniopsis anacardioides), Sapindaceae
Tulip tree (Liriodendron chinense), Magnoliaceae
Tulipwood (Harpullia pendula), Sapindaceae
Tulsi vana basil (Ocimum gratissimum), Lamiaceae
Turkey berry (Solanum torvum), Solanaceae
Turmeric (Curcuma longa), Zingiberaceae
Turnip (Brassica rapa subsp. rapa), Brassicaceae
Turpentine tree (Syncarpia glomulifera), Myrtaceae

U
Genus names U, (Ulmus to Uncaria)
Uci (Eodia hortensis), Rutaceae
Udder plant (Solanum mammosum), Solanaceae
Ulluco (Ullucus tuberosus), Basellaceae
Umbrella tree (Brassica actinophylla), Araliaceae
Upland cress (Barbarea vulgaris), Brassicaceae

V
Genus names V, (Vaccinium to Vriesea)
Valencia (Citrus sinensis), Rutaceae
Valerian (Valeriana officinalis), Caprifoliaceae
Vanilla (Vanilla planifolia), Orchidaceae
Vanilla grass (Anthoxanthum odoratum), Poaceae
Vanilla lily (Arthropodium milleflorum), Liliaceae
Vegetable pepper (Piper sarmentosum), Piperaceae
Velvet apple (Diospyros blancoi), Ebenaceae
Velvet bean (Mucuna pruriens), Fabaceae
Velvet cassia (Cassia tomentella), Fabaceae
Velvet myrtle (Lenwebbia prominens), Myrtaceae
Venus fly trap (Dionaea muscipula), Droseraceae
Vervain (Verbena officinalis), Verbenaceae
Vetiver grass (Chrysopogon zizanioides), Poaceae
Veiny whitewood (Atalaya rigida), Sapindaceae
Vietnamese mint (Persicaria odorata), Polygonaceae
Vigna , (Vigna aconitifolia), Fabaceae
Violet (Viola odorata), Violaceae
Viper's bugloss (Echium vulgare), Boraginaceae
Vitex (Vitex agnus-castus), Lamiaceae

W
Genus names W, (Wahlenbergia to Wrightia)
Wait-a-while (Calamus australis), Arecaceae
Walking onion (Allium × proliferum), Amaryllidaceae
Walking stick palm (Linospadix monostachya), Arecaceae
Wallpepper (Sedum acre), Crassulaceae
Walnut (Juglans regia), Juglandiaceae
"Walnut" (Endiandra pubens), Lauraceae
Wampi (Clausena lansium), Rutaceae
Wandering Jew (Tradescantia andersonia), Commelinaceae
Wannakai (Rhodomyrtus macrocarpa), Myrtaceae
Warrigal greens (Tetragonia tetragonioides), Aizoaceae
Warrilyn (Eucalyptus pachyphylla), Myrtaceae
Wasabi (Wasabia japonica), Brassicaceae
Water apple (Syzygium aqueum), Myrtaceae
Water celery (Oenanthe javanica), Apiaceae
Water convolulus (Ipomoea aquatica), Convolvulaceae
Water dropwort (Oenanthea javanica), Apiaceae
Water lily (Nymphaea macrosperma), Nymphaeaceae
Water mint (Mentha aquatica), Lamiaceae
Water pepper (Persicaria hydropiper), Polygonaceae
Watercress (Nasturtium officinale), Brassicaceae
Waterleaf (Talinum fruticosum), Talinaceae
Watermelon (Citrullus lanatus), Cucurbitaceae
'Wattle' (Acacia aneura), Fabaceae
Wax jambu (Syzygium samarangense), Myrtaceae
Wax myrtle (Myrica cerifera), Lauraceae
Weeping forsythia (Forsythia suspensa), Oleaceae
Weeping paperbark (Melaleuca leucadendra), Myrtaceae
Weeping willow (Salix babalonica), Salicaceae
Weld (Reseda luteola), Resedaceae
Welwitschia (Welwitschia mirabilis), Gnetophyta Division
West African basil (Ocimum viride), Lamiaceae
West Indian bay tree (Pimenta racemosa), Myrtaceae
Wheat (Triticum aestivum)
Whisk-ferns Psilotopsida
White aspen (Acronychia oblongifolia), Rutaceae
White correa (Correa alba), Rutaceae
White cheesewood (Alstonia scholaris), Apocynaceae
White clover (Trifolium repens), Fabaceae
White dead-nettle (Lamium album), Lamiaceae
White sage (Salvia apiana), Lamiaceae
White elderberry (Sambucus gaudichaudiana), Adoxaceae
White flag iris (Diplarrena moraea), Iridaceae
White melilot (Melilotus albus), Fabaceae
White mulberry (Morus alba), Moraceae
White mustard (Brassica alba), Brassicaceae
White sage (Salvia apiana), Lamiaceae
White sapote (Casmiroa edulis), Rutaceae
White willow (Salix alba), Salicaceae
Wild asparagus (Asparagus racemosus), Asparagaceae
Wild basil (Clinopodium vulgaris), Lamiaceae
Wild bergamot (Monarda fistulosa), Lamiaceae
Wild cabbage (Brassica oleracea var. oleracea), Brassicaceae
Wild currant (Antidesma erostre), Phyllanthaceae
Wild indigo (Indigofera suffruticosa), Fabaceae
Wild lettuce (Lactuca virosa), Asteraceae
Wild mint (Mentha arvensis), Lamiaceae
Wild mustard (Brassica kaber), Brassicaceae
Wild orange (Capparis mitchellii), Capparaceae
Wild pansy (Viola tricolor), Violaceae
Wild parsnip (Trachymene incisa), Araliaceae
Wild passionfruit (Capparis spinosa subsp nummularia), Capparaceae
Wild pepper (Piper lolot), Piperaceae
Wild potato (Solanum chacoense), Solanaceae
Wild rocket (Diplotaxis tenuifolia), Brassicaceae
Wild rosemary (Olearia axillaris), Asteraceae
Wild rhubarb (Rumex hymenosepalus), Polygonaceae
Wild strawberry (Fragaria vesca), Rosaceae
Wild turmeric (Curcuma aromatica), Zingiberaceae
Wild yam (Dioscorea villosa), Dioscoreaceae
Willow (Salix alba), Salicaceae
Willow myrtle (Agonis reflexuosa), Myrtaceae
Winged bean (Psophocarpus tetragonolobus), Fabaceae
Wingleaf soapberry (Sapindus saponaria), Sapindaceae
Winter apple (Eremophila deblis), Scrophulariaceae
Winter grass (Poa annua), Poaceae
Winter heliotrope (Petasites fragrans), Asteraceae
Winter savory (Satureja montana), Lamiaceae
Wintergreen (Gaultheria fragrantissima), Ericaeae
Wirewood (Acacia coriacea), desert oakFabaceae
Wisteria (Wisteria floribunda), Fabaceae
Witch hazel (Hamamelis virginiana), Hamamelidaceae
Witchetty bush (Acacia kempeana), Fabaceae
Withania (Withania somnifera), Solanaceae
Woad (Isatis tinctoria), Brassicaceae
Wolfsbane (Aconitum vulparia), Ranunculaceae
Wollemi "pine" (Wollemia nobilis), Araucariaceae
Wombat berry (Austrephus latifolius), Asparagaceae
Wombok (Brassica rapa subsp. pekinensis), Brassicaceae
Wongai plum (Manilkara kauki), Sapotaceae
Wood avens (Geum urbanum), Rosaceae
Woody pear (Xylomelum occidentale), Proteaceae
Woolly bush (Adenanthos sericeus), Proteaceae
Woolly locoweed (Astragalus mollissimus), Fabaceae
Woolly yarrow (Achillea tomentosa), Asteraceae
Woolly-leaf white sapote (Casmiroa tetramiria), Rutaceae
Wood anemone (Anemone nemorosa), Ranunculaceae
Wood betony (Stachys sylvatica), Lamiaceae
Wood avens (Geum urbanum), Rosaceae
Wood betony (Stachys officinalis), Lamiaceae
Wood sorrel (Oxalis acetosella), Oxalidaceae
Wormwood (Artemisia absinthium), Asteraceae

X
Genus names X, (Xanthium to Xylopia)

Y
Genus names Y, (Yucca)
Yacón (Smallanthus sonchifolius), Asteraceae
Yam (Dioscorea alata), Dioscoreaceae
Yam bean (Pachyrrhizus erosus), Fabaceae
Yanang (Tiliacora triandra), Menispermaceae
Yarrow (Achillea millefolium), Asteraceae
Yellow archangel (Lamium galeobdolon), Lamiaceae
Yellow dock (Rumex crispus), Polygonaceae
Yellow flag (Iris pseudoacorus), Iridaceae
Yellow mangosteen (Garcinia xanthochymus), Clusiaceae
Yellow passionfruit (Passiflora edulis var. flavicarpa), Passifloraceae
Yellow plum (Ximenia americana), Olacaceae
Yellow salsify (Tragopogon dubius), Asteraceae
Yellow shower (Cassia queenslandica), Fabaceae
Yellow tailflower (Anthocercis ilicifolia), Solanaceae
Yellow tulipwood (Drypetes deplanchei), Euphorbiaceae
Yellow walnut (Beilschmiedia bancroftii), Lauraceae
Yerba-mate (Ilex paraguariensis), Aquifoliaceae
Yesterday, today and tomorrow (Brunfelsia pauciflora0, Solanaceae
Yew tree (Taxus baccata), Taxaceae
Ylang ylang (Cananga odorata), Annonaceae
Ylang-ylang vine (Artabotrys hexapetalus), Annonaceae
Youlk (Platysace deflexa), Apiaceae
Youngberry (Rubus ursinus variety), Rosaceae
Yucca (Yucca filamentosa), Asparagaceae
Yuzu (Citrus junos), Rutaceae

Z
Genus names Z, (Zantedeschia to Zyzyphus)
Zamia fern (Bowenia spectabilis), Cycadophyta Division
Zamia palm (Macrozamia riedlei), Cycadophyta Division
Zaatar (Origanum syriacum), Lamiaceae
Zebra grass (Miscanthus zebrinus), Poaceae
Zebra plant (Calathea concinna), Marantaceae
Zedoary (Curcuma zedoaria), Zingiberaceae
Zig zag vine (Melodorum leichardtii), Annonaceae