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

Slender oat

Avena barbata

Slender parsley piert

Aphanes microcarpa

slender suckling clover

Trifolium micranthum

slender thistle

Carduus tenuiflorus

slim-bristle sandbur

Cenchrus brownii

Slimleaf bur ragweed

Ambrosia tenuifolia

small-flower evening-primrose

Oenothera indecora

Smallflower tamarisk

Tamarix parviflora

small-leaf cotoneaster

Cotoneaster microphyllus

Small-leaf spiderwort

Tradescantia fluminensis

small matweed

Guilleminea densa

Small Nightshade

Solanum triflorum

Smokebush

Buddleja madagascariensis

Smooth hawksbeard

Crepis capillaris

smooth heliotrope

Heliotropium curassavicum

Smooth rattlebox

Crotalaria pallida

Smut grass

Sporobolus indicus

Snail medick

Medicago scutellata

Sneezeweed

Achillea ptarmica

Snowpeaks raspberry

Rubus niveus

Society garlic

Tulbaghia violacea

Soft butterfly pea

Centrosema molle

Soft elephantsfoot

Elephantopus mollis

soldier thistle

Picnomon acarna

Song Thrush

Turdus philomelos

Sorghum

Sorghum arundinaceum

Sour orange

Citrus aurantium

South American skullcap

Scutellaria racemosa

Southern sandbur

Cenchrus echinatus

Soya-bean

Glycine max

Spanish broom

Spartium junceum

Spanish heath

Erica lusitanica

Spanish Iris

Iris xiphium

Spanish-needles

Bidens bipinnata

Spanish-valerian

Centranthus macrosiphon

Sparaxis

Sparaxis grandiflora

spear grass

Nassella hyalina

Spearleaf swampmallow

Pavonia hastata

Spearmint

Mentha spicata

Spider plant

Chlorophytum comosum

Spiked pepper

Piper aduncum

spiked water-milfoil

Myriophyllum spicatum

Spiky Fescue

Festuca gautieri

Spinach

Spinacia oleracea

Spiny Cocklebur

Xanthium spinosum

Spiny fiddlewood

Citharexylum spinosum

Spinyfruit buttercup

Ranunculus muricatus

Spiny restharrow

Ononis spinosa

Endangered

Spiny sowthistle

Sonchus asper

Spotted African cornlily

Ixia maculata

Spotted ladysthumb

Persicaria maculosa

Spotted Thistle

Scolymus maculatus

Spreading alkali grass

Puccinellia distans

Spreading Cotoneaster

Cotoneaster divaricatus

Spreading hedgeparsley

Torilis arvensis

Spreading wallflower

Erysimum repandum

Sprenger's asparagus fern

Asparagus aethiopicus

square-stemmed willowherb

Epilobium tetragonum

Squirting cucumber

Ecballium elaterium