Australia

Ajuga

Ajuga reptans

Endangered

Alder

Alnus glutinosa

Bael Fruit

Aegle marmelos

Bellenden Ker Scaly Snail

Aetholitis gerdesae

Bishop's goutweed

Aegopodium podagraria

Black Bent

Agrostis gigantea

Bloodwort

Achillea millefolium

All Species in Australia

Stag'S-Horn Sumach

Rhus typhina

Stalkleaf murainagrass

Ischaemum timorense

Extinct

St. Andrew's Cross

Hypericum hypericoides

star-apple

Chrysophyllum cainito

Star jasmine

Jasminum multiflorum

Starry Clover

Trifolium stellatum

star-thistle

Centaurea calcitrapa

Extinct

St. Augustine grass

Stenotaphrum secundatum

Stickbush

Clerodendrum chinense

Sticky chickweed

Cerastium glomeratum

Sticky snakeroot

Ageratina adenophora

Stiff Brome

Brachypodium distachyon

stiff sand grass

Catapodium marinum

stink aster

Dittrichia graveolens

Stinkgrass

Eragrostis cilianensis

Stinking Bean Trefoil

Anagyris foetida

stinking goosefoot

Chenopodium vulvaria

Critically Endangered

Stinking Hawk's-beard

Crepis foetida

Endangered

Stinking iris

Iris foetidissima

Stinkvine

Paederia foetida

St. John's bread

Ceratonia siliqua

St Lucie Cherry

Prunus mahaleb

St. Peter's-wort

Hypericum tetrapterum

Straggler daisy

Calyptocarpus vialis

Strapwort

Corrigiola litoralis

strawberry clover

Trifolium fragiferum

Vulnerable

Strawberry guava

Psidium cattleianum

Strawberry tree

Arbutus unedo

Strawberrytree

Muntingia calabura

Striped Acorn Barnacle

Amphibalanus amphitrite

Striped corn catchfly

Silene conica

Strong-spined Medick

Medicago truncatula

Subterranean clover

Trifolium subterraneum

Suffocated clover

Trifolium suffocatum

Sugarcane

Saccharum officinarum

Summer snowflake

Leucojum aestivum

Endangered

Sunflower

Mauranthemum paludosum

Sunn hemp

Crotalaria juncea

Sunolgrass

Phalaris coerulescens

Sunset muskmallow

Abelmoschus manihot

Supine vervain

Verbena supina

Surinam cherry

Eugenia uniflora

sweet alys

Alysicarpus bupleurifolius

Sweet-amber

Hypericum androsaemum

Sweet bay

Laurus nobilis

Sweet cherry

Prunus avium

sweet grass

Panicum schinzii

Sweet Pea

Lathyrus odoratus

Sweetpotato

Ipomoea batatas

Swollen fingergrass

Chloris barbata

Syrian Christ-thorn

Ziziphus spina-christi

Syrian mustard

Euclidium syriacum

Syrian thistle

Notobasis syriaca

Taiwanese photinia

Photinia serratifolia

Tall Ramping-Fumitory

Fumaria bastardii

Tall tumblemustard

Sisymbrium altissimum

Tall Tutsan

Hypericum inodorum

Tall Yarrow

Achillea distans

Talquezal

Paspalum virgatum

Tamarillo

Solanum betaceum