Spiranthes spiralis
Autumn Lady's-tresses
Spirodela polyrhiza
Greater Duckweed
Stachys byzantina
Lamb's-ear
Stachys germanica
Downy Woundwort
Stachys palustris
Marsh Woundwort
Stachys sylvatica
Hedge Woundwort
Staphylea pinnata
Bladdernut
Stellaria alsine
Bog Stitchwort
Stellaria aquatica
Water Chickweed
Stellaria neglecta
Greater Chickweed
Stylosanthes guianensis
Stylo
Succisa pratensis
Devil's-bit Scabious
Symphyotrichum lanceolatum
Narrow-leaved Michaelmas-daisy
Symphytum officinale
Common Comfrey
Symphytum orientale
White Comfrey
Symphytum x hidcotense
Symphytum x uplandicum
Russian Comfrey
Synedrella nodiflora
Nodeweed
Talinum paniculatum
Fameflower
Tamus communis
Black Bryony
Tanacetum parthenium
Feverfew
Taraxacum falcatum
Dandelion
Taraxacum 'iscanum'
Taraxacum palustre