To the best of my knowledge, these names are reasonably accurate. If you see a plant misnamed or any errors on these pages, please email me.

My flower photography is not copyrighted. You may glean them and use them as you please.

 

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Common Name Scientific Name(s)
Nardosmia arctica, Petasites frigidus ssp. arcticus, Petasites frigidus var. palmatus, Petasites frigidus ssp. palmatus, Petasites palmatus, Petasites arcticus, Petasites hookerianus, Petasites palmatus, Petasites speciosus, Tussilago frigida syn of Petasites frigidus Alpine or arctic butterbur, Arctic sweet coltsfoot, Coltsfoot, Northern sweet coltsfoot, Sweet butterbur, Western Coltsfoot

Narrow-leaf fireweed

Chamerion angustifolium ssp. angustifolium syn Chamaenerion angustifolium, Chamerion angustifolium var. angustifolium, Chamerion spicatum, Epilobium angustifolium, Epilobium angustifolium var. intermedium, Epilobium spicatum

Narrowleaf Plaintain

Plantago lanceolata syn Plantago altissima, Plantago lanceolata var. sphaerostachya

Narrow-leaved Popcorn Flower

Cryptantha angustifolia syn Eremocarya angustifolia

Natagräs, Nate Stellaria media

Native bluebell, Nodding Squill

Hyacinthoides nonscripta, Endymion nonscripta, Scilla nonscripta, Scilla nutans
Nodding chickweed Stellaria media

Nootka rose

Rosa nutkana syn Rosa muriculata, Rosa fraxinifolia

Northern Lady Fern

Athyrium filix-femina

Northern Starflower

Trientalis borealis ssp latifolia syn Trientalis europaea var. latifolia, Trientalis latifolia

Northern sweet coltsfoot Petasites frigidus syn Petasites frigidus ssp. arcticus, Petasites frigidus var. palmatus, Petasites frigidus ssp. palmatus, Petasites palmatus, Petasites arcticus, Petasites hookerianus, Petasites palmatus, Petasites speciosus, Nardosmia arctica, Tussilago frigida

Nutka-Himbeere

Rubus parvifloras syn Rubus nutkanus
Oceanspray Holodiscus discolor syn Holodiscus boursieri, Holodiscus discolor ssp. franciscanus, Holodiscus discolor var. ariaefolius, Holodiscus discolor var. delnortensis, Holodiscus discolor var. franciscanus, Holodiscus discolor var. glabrescens, Holodiscus dumosus ssp. saxicola, Holodiscus dumosus var. australis, Holodiscus dumosus var. glabrescens, Holodiscus glabrescens, Holodiscus microphyllus, Holodiscus microphyllus var. glabrescens, Holodiscus microphyllus var. microphyllus, Holodiscus microphyllus var. sericeus, Holodiscus microphyllus var. typicus, Sericotheca discolor, Spiraea discolor

Oldfield clover

Trifolium arvense

Orange Honeysuckle

Lonicera ciliosa syn Caprifolium ciliosum, Caprifolium occidentale, Lonicera ciliosa occidentalis, Lonicera occidentalis

Oregon Grape, Oregon Barberry, Oregon grape-holly

Mahonia repens, Berberis amplectens, Berberis aquifolium var. repens, Berberis pumila, Berberis repens, Berberis sonnei, Mahonia amplectens, Mahonia pumila, Mahonia sonnei, Odostemon pumilus, Odostemon repens

Oregon Maple

Acer mycophyllum

Our Lady's Nightcaps, Our Lady's Thimbles

Hyacinthoides nonscripta, Endymion nonscripta, Scilla nonscripta, Scilla nutans

Oregon plum, Osoberry

Oemleria cerasiformis syn Nuttallia cerasiformis, Osmaronia cerasiformis

Pacific American-aster, Pacific aster Symphyotrichum chilense syn Aster chilensis, Aster chilensis subsp. chilensis

Pacific Broadleaf Stonecrop, Pacific Stonecrop

Sedum spathulifolium syn Gormania anomalum, Sedum anomalum

Pacific glasswort, Pacific swampfire

Sarcocornia pacifica syn Salicornia pacifica
Pacific Red Elderberry Sambucus racemosa syn Sambucus buergeriana, Sambucus racemosa subsp. sieboldiana forma stenophylla, Sambucus callicarpa, Sambucus racemosa subsp. pubens var. arborescens, Sambucus coreana, Sambucus kamtschatica, Sambucus melanocarpa, Sambucus racemosa subsp. pubens var. melanocarpa, Sambucus microbotrys, Sambucus racemosa subsp. pubens var. microbotrys, Sambucus pubens, Sambucus pubens var. arborescens, Sambucus racemosa subsp. pubens var. arborescens, Sambucus pubens f. xanthocarpa, Sambucus pubescens, Sambucus racemosa subsp. pubens, Sambucus racemosa var. laciniata, Sambucus racemosa var. miquelii, Sambucus racemosa var. sieboldiana, Sambucus racemosa f. xanthocarpa, Sambucus racemosa subsp. pubens, Sambucus sibirica, Sambucus racemosa subsp. sibirica, Sambucus sieboldiana, Sambucus racemosa subsp. sieboldiana, Sambucus sieboldiana var. miquelii, Sambucus racemosa subsp. kamtschatica, Sambucus sieboldiana var. stenophylla, Sambucus racemosa subsp. sieboldiana forma stenophylla, Sambucus sieboldiana f. xanthocarpa, Sambucus sieboldiana var. xanthocarpa, Sambucus racemosa subsp. sieboldiana forma nakaiana, Sambucus tigranii, Sambucus racemosa subsp. racemosa

Pacific rhododendron

Rhododendron macrophyllum syn Rhododendron californicum

Pacific sanicle, Pacific Snakeroot

Sanicula crassicaulis

Paddock pipes

Equisetum arvense syn Equisetum arvense f. alpestre, Equisetum arvense f. boreale, Equisetum arvense f. decumbens, Equisetum arvense f. ramulosum, Equisetum arvense f. varium, Equisetum arvense var. alpestre, Equisetum arvense var. boreale, Equisetum arvense var. boreale f. pseudo-varium, Equisetum arvense var. boreale f. pseudo-alpestre, Equisetum arvense var. campestre, Equisetum arvense var. riparium, Equisetum calderi

Panamint cryptantha, Panamint cat's eye

Cryptantha angustifolia syn Eremocarya angustifolia

Pearlwort

Sagina decumbens ssp occidentalis syn Sagina occidentalis

Pearly Everlasting

Anaphalis margaritacea syn Anaphalis occidentalis, Gnaphalium margaritaceum

Peavine clover

Trifolium pratense syn Trifolium pratense var. frigidum, Trifolium pratense var. sativum

Pelicao

Hypericum perforatum
Pentecostal Bells Hyacinthoides nonscripta, Endymion nonscripta, Scilla nonscripta, Scilla nutans

Pepper-and-Salt

Capsella bursa-pastoris syn Bursa bursa-pastoris, Bursa bursa-pastoris var. bifida, Bursa gracilis, Capsella rubella, Thlaspi bursa-pastoris

Perennial Glasswort

Sarcocornia pacifica syn Salicornia pacifica

Perennial sowthistle

Sonchus asper syn Sonchus asper ssp. asper

Perforate St. John's-wort

Hypericum perforatum
Petasites frigidus syn Petasites frigidus ssp. arcticus, Petasites frigidus var. palmatus, Petasites frigidus ssp. palmatus, Petasites palmatus, Petasites arcticus, Petasites hookerianus, Petasites palmatus, Petasites speciosus, Nardosmia arctica, Tussilago frigida Alpine or arctic butterbur, Arctic sweet coltsfoot, Coltsfoot, Northern sweet coltsfoot, Sweet butterbur, Western Coltsfoot

Petit plantain

Plantago lanceolata syn Plantago altissima, Plantago lanceolata var. sphaerostachya

Pewterwort

Equisetum arvense syn Equisetum arvense f. alpestre, Equisetum arvense f. boreale, Equisetum arvense f. decumbens, Equisetum arvense f. ramulosum, Equisetum arvense f. varium, Equisetum arvense var. alpestre, Equisetum arvense var. boreale, Equisetum arvense var. boreale f. pseudo-varium, Equisetum arvense var. boreale f. pseudo-alpestre, Equisetum arvense var. campestre, Equisetum arvense var. riparium, Equisetum calderi

Piantaggine lanceolata

Plantago lanceolata syn Plantago altissima, Plantago lanceolata var. sphaerostachya

Pick-Pocket, Pick-Purse

Capsella bursa-pastoris syn Bursa bursa-pastoris, Bursa bursa-pastoris var. bifida, Bursa gracilis, Capsella rubella, Thlaspi bursa-pastoris

Pickleweed

Sarcocornia pacifica syn Salicornia pacifica
Pihatähtimö Stellaria media

Pineland sword fern

Polystichum munitum syn Polystichum munitum var. incisoserratum, Polystichum munitum var. munitum

Pinillo de oro

Hypericum perforatum

Pink Purslane

Claytonia sibirica var sibirica

Piqueux

Cirsium vulgare syn Carduus lanceolatus, Carduus vulgaris, Cirsium lanceolatum, Cirsium lanceolatum var. hypoleucum

Plantago Asiatica

Plantago major syn Plantago asiatica auct. non, Plantago halophila, Plantago major ssp. intermedia, Plantago major var. asiatica auct. non, Plantago major var. intermedia, Plantago major var. pachyphylla, Plantago major var. pilgeri, Plantago major var. scopulorum

Plantain

Plantago lanceolata syn Plantago altissima, Plantago lanceolata var. sphaerostachya
Poisonberry, Poisonflower Solanum dulcamara syn Solanum dulcamara f. albiflorum, Solanum dulcamara var. canescens, Solanum dulcamara var. pubescens, Solanum dulcamara var. villosissimum

Poor man's asparagus

Sarcocornia pacifica syn Salicornia pacifica

Poor Man's Parmacettie

Capsella bursa-pastoris syn Bursa bursa-pastoris, Bursa bursa-pastoris var. bifida, Bursa gracilis, Capsella rubella, Thlaspi bursa-pastoris

Popcorn Flower

Cryptantha angustifolia syn Eremocarya angustifolia

Pousse-pied

Sarcocornia pacifica syn Salicornia pacifica
Pracht-Himbeere Rubus spectabilis

Prele, Pribes des champs

Equisetum arvense syn Equisetum arvense f. alpestre, Equisetum arvense f. boreale, Equisetum arvense f. decumbens, Equisetum arvense f. ramulosum, Equisetum arvense f. varium, Equisetum arvense var. alpestre, Equisetum arvense var. boreale, Equisetum arvense var. boreale f. pseudo-varium, Equisetum arvense var. boreale f. pseudo-alpestre, Equisetum arvense var. campestre, Equisetum arvense var. riparium, Equisetum calderi

Prickly currant

Ribes lacustre syn Limnobotrya lacustris, Ribes grossularioides, Ribes lacustre var. parvulum, Ribes oxycanthoides var. lacustre

Prickly sowthistle

Sonchus asper syn Sonchus asper ssp. asper

Pseudohypericin

Hypericum perforatum

Puget Sound Gumplant, Puget Sound gumweed

Grindelia integrifolia

Purple catfoot Gnaphalium purpureum syn Gnaphalium purpureum, Gnaphalium purpureum var. purpureum, Gamochaeta purpurea

Purple clover

Trifolium pratense syn Trifolium pratense var. frigidum, Trifolium pratense var. sativum

Purple cudweed Gnaphalium purpureum syn Gnaphalium purpureum, Gnaphalium purpureum var. purpureum, Gamochaeta purpurea

Purple deadnettle

Lamium purpureum

Purple foxglove Digitalis purpurea syn Digitalis purpurea var. gloxiniiflora, Digitalis amandiana, Digitalis miniana, Digitalis nevadensis, Digitalis purpurea var. amandiana, Digitalis purpurea subsp. amandiana, Digitalis purpurea var. gloxiniiflora, Digitalis purpurea var. tomentosa, Digitalis purpurea subsp. purpurea, Digitalis tomentosa

Pussy clover

Trifolium arvense

Quamash

Camassia quamash

Quinquenervia

Plantago lanceolata syn Plantago altissima, Plantago lanceolata var. sphaerostachya
Rabbit tobacco Gnaphalium purpureum syn Gnaphalium purpureum, Gnaphalium purpureum var. purpureum, Gamochaeta purpurea

Rabbitfoot clover

Trifolium arvense

Raineach Moire

Athyrium filix-femina

Rats Tails

Plantago major syn Plantago asiatica auct. non, Plantago halophila, Plantago major ssp. intermedia, Plantago major var. asiatica auct. non, Plantago major var. intermedia, Plantago major var. pachyphylla, Plantago major var. pilgeri, Plantago major var. scopulorum

Rattle Pouches

Capsella bursa-pastoris syn Bursa bursa-pastoris, Bursa bursa-pastoris var. bifida, Bursa gracilis, Capsella rubella, Thlaspi bursa-pastoris

Rauhhaarwicke Vicia hirsuta syn Ervum hirsutum, Ervum terronii, Vicia hirsuta var. terronii

Red blueberry

Vaccinium parvifolium

Red clover

Trifolium pratense syn Trifolium pratense var. frigidum, Trifolium pratense var. sativum

Red Elder, Red Elderberry, Red-berried elderberry, Redberry Elder

Sambucus racemosa syn Sambucus buergeriana, Sambucus racemosa subsp. sieboldiana forma stenophylla, Sambucus callicarpa, Sambucus racemosa subsp. pubens var. arborescens, Sambucus coreana, Sambucus kamtschatica, Sambucus melanocarpa, Sambucus racemosa subsp. pubens var. melanocarpa, Sambucus microbotrys, Sambucus racemosa subsp. pubens var. microbotrys, Sambucus pubens, Sambucus pubens var. arborescens, Sambucus racemosa subsp. pubens var. arborescens, Sambucus pubens f. xanthocarpa, Sambucus pubescens, Sambucus racemosa subsp. pubens, Sambucus racemosa var. laciniata, Sambucus racemosa var. miquelii, Sambucus racemosa var. sieboldiana, Sambucus racemosa f. xanthocarpa, Sambucus racemosa subsp. pubens, Sambucus sibirica, Sambucus racemosa subsp. sibirica, Sambucus sieboldiana, Sambucus racemosa subsp. sieboldiana, Sambucus sieboldiana var. miquelii, Sambucus racemosa subsp. kamtschatica, Sambucus sieboldiana var. stenophylla, Sambucus racemosa subsp. sieboldiana forma stenophylla, Sambucus sieboldiana f. xanthocarpa, Sambucus sieboldiana var. xanthocarpa, Sambucus racemosa subsp. sieboldiana forma nakaiana, Sambucus tigranii, Sambucus racemosa subsp. racemosa

Red Deadnettle

Lamium purpureum

Red Flowering Currant, Redflower currant Ribes sanguineum syn Ribes glutinosum, Ribes sanguineum var. glutinosum, Ribes sanguineum f. atrorubens

Red huckleberry, Red Whortleberry

Vaccinium parvifolium

Redstem Filaree

Erodium cicutarium

Redstem Spring Beauty

Claytonia rubra

Redwood Orchid

Calypso bulbosa

Relva-do-Olimpo

Armeria maritima

Renoncule âcre

Ranunculus acris syn Ranunculus acris subsp. strigulosus, Ranunculus acris var. acris, Ranunculus acris var. latisectus, Ranunculus acris var. stevenii, Ranunculus acris var. typicus, Ranunculus acris var. villosus, Ranunculus boreanus

Resinweed

Grindelia integrifolia

Ribble Grass, Ribgrass, Ribwort, Ribwort plantain

Plantago lanceolata syn Plantago altissima, Plantago lanceolata var. sphaerostachya
Ring-o-Bells Hyacinthoides nonscripta, Endymion nonscripta, Scilla nonscripta, Scilla nutans

Ripple Grass, Rippleseed plantain

Plantago major syn Plantago asiatica auct. non, Plantago halophila, Plantago major ssp. intermedia, Plantago major var. asiatica auct. non, Plantago major var. intermedia, Plantago major var. pachyphylla, Plantago major var. pilgeri, Plantago major var. scopulorum
Rock spiraea Holodiscus discolor syn Holodiscus boursieri, Holodiscus discolor ssp. franciscanus, Holodiscus discolor var. ariaefolius, Holodiscus discolor var. delnortensis, Holodiscus discolor var. franciscanus, Holodiscus discolor var. glabrescens, Holodiscus dumosus ssp. saxicola, Holodiscus dumosus var. australis, Holodiscus dumosus var. glabrescens, Holodiscus glabrescens, Holodiscus microphyllus, Holodiscus microphyllus var. glabrescens, Holodiscus microphyllus var. microphyllus, Holodiscus microphyllus var. sericeus, Holodiscus microphyllus var. typicus, Sericotheca discolor, Spiraea discolor

Rosebay willowherb

Chamerion angustifolium ssp. angustifolium syn Chamaenerion angustifolium, Chamerion angustifolium var. angustifolium, Chamerion spicatum, Epilobium angustifolium, Epilobium angustifolium var. intermedium, Epilobium spicatum

Rosin rose

Hypericum perforatum

Rotklee

Trifolium pratense syn Trifolium pratense var. frigidum, Trifolium pratense var. sativum

Rough sow thistle

Sonchus asper syn Sonchus asper ssp. asper

Roughfruit cinquefoil

Potentilla recta syn Potentilla recta var. obscura, Potentilla recta var. pilosa, Potentilla recta var. sulphurea, Potentilla recta var. warrensii, Potentilla pilosa, Potentilla sulphurea, Potentilla laciniosa, Potentilla transcaspia

? Rowan

Sorbus spp

Running clubmoss

Equisetum arvense syn Equisetum arvense f. alpestre, Equisetum arvense f. boreale, Equisetum arvense f. decumbens, Equisetum arvense f. ramulosum, Equisetum arvense f. varium, Equisetum arvense var. alpestre, Equisetum arvense var. boreale, Equisetum arvense var. boreale f. pseudo-varium, Equisetum arvense var. boreale f. pseudo-alpestre, Equisetum arvense var. campestre, Equisetum arvense var. riparium, Equisetum calderi

St John's wort

Hypericum perforatum

Salal

Gaultheria shallon

Salicornia, Samphire

Sarcocornia pacifica syn Salicornia pacifica
Salmon eggs, Salmonberry Rubus spectabilis

Salmonberry

Rubus parvifloras syn Rubus nutkanus
Sand bur Ambrosia chamissonis syn Ambrosia chamissonis var. bipinnatisecta, Ambrosia chamissonis var. chamissonis, Franseria chamissonis, Franseria chamissonis ssp. bipinnatisecta, Franseria chamissonis var. bipinnatisecta

Sanguinary

Capsella bursa-pastoris syn Bursa bursa-pastoris, Bursa bursa-pastoris var. bifida, Bursa gracilis, Capsella rubella, Thlaspi bursa-pastoris

Sapphire Queen Hyacinthoides nonscripta, Endymion nonscripta, Scilla nonscripta, Scilla nutans

Saskatoon Serviceberry

Amelanchier alnifolia

Scarlet Berry Solanum dulcamara syn Solanum dulcamara f. albiflorum, Solanum dulcamara var. canescens, Solanum dulcamara var. pubescens, Solanum dulcamara var. villosissimum

Scarlet Cup

Castilleja affinis

Scarlet Elder Sambucus racemosa syn Sambucus buergeriana, Sambucus racemosa subsp. sieboldiana forma stenophylla, Sambucus callicarpa, Sambucus racemosa subsp. pubens var. arborescens, Sambucus coreana, Sambucus kamtschatica, Sambucus melanocarpa, Sambucus racemosa subsp. pubens var. melanocarpa, Sambucus microbotrys, Sambucus racemosa subsp. pubens var. microbotrys, Sambucus pubens, Sambucus pubens var. arborescens, Sambucus racemosa subsp. pubens var. arborescens, Sambucus pubens f. xanthocarpa, Sambucus pubescens, Sambucus racemosa subsp. pubens, Sambucus racemosa var. laciniata, Sambucus racemosa var. miquelii, Sambucus racemosa var. sieboldiana, Sambucus racemosa f. xanthocarpa, Sambucus racemosa subsp. pubens, Sambucus sibirica, Sambucus racemosa subsp. sibirica, Sambucus sieboldiana, Sambucus racemosa subsp. sieboldiana, Sambucus sieboldiana var. miquelii, Sambucus racemosa subsp. kamtschatica, Sambucus sieboldiana var. stenophylla, Sambucus racemosa subsp. sieboldiana forma stenophylla, Sambucus sieboldiana f. xanthocarpa, Sambucus sieboldiana var. xanthocarpa, Sambucus racemosa subsp. sieboldiana forma nakaiana, Sambucus tigranii, Sambucus racemosa subsp. racemosa

Scilla Hyacinthoides hispanica syn Endymion campanulatus, Endymion hispanicus, Hyacinthoides non-scripta subsp. hispanica, Hyacinthoides racemosa, Scilla hispanica

Scotch thistle, Scottish thistle

Cirsium vulgare syn Carduus lanceolatus, Carduus vulgaris, Cirsium lanceolatum, Cirsium lanceolatum var. hypoleucum

Sea asparagus, Sea bean

Sarcocornia pacifica syn Salicornia pacifica

Sea cushion, Sea-daisy, Sea Pink, Sea Thrift

Armeria maritima

Sea Rocket

Cakile edentula

Séneçon des bois Senecio sylvaticus

Serralha-comum

Sonchus asper syn Sonchus asper ssp. asper

Shallon

Gaultheria shallon

Shepherds Purse, Shepherd's Bag, Shepherd's Scrip, Shepherd's Sprout, Shovel weed

Capsella bursa-pastoris syn Bursa bursa-pastoris, Bursa bursa-pastoris var. bifida, Bursa gracilis, Capsella rubella, Thlaspi bursa-pastoris

Siberian bittercress

Cardamine oligosperma

Siberian Spring Beauty, Siberian Miner's Lettuce

Claytonia sibirica var sibirica

Silene alba

Silene latifolia ssp alba syn Lychnis alba, Lychnis pratensis, Lychnis ×loveae, Lychnis vespertina, Melandrium album, Silene alba, Silene pratensis, Silene pratensis subsp. pratensis
Silver beachweed, Silver bur, Silver burr ragweed, Silver bursage, Silver bur weed Ambrosia chamissonis syn Ambrosia chamissonis var. bipinnatisecta, Ambrosia chamissonis var. chamissonis, Franseria chamissonis, Franseria chamissonis ssp. bipinnatisecta, Franseria chamissonis var. bipinnatisecta

Skogburkne

Athyrium filix-femina

Skotse dissel

Cirsium vulgare syn Carduus lanceolatus, Carduus vulgaris, Cirsium lanceolatum, Cirsium lanceolatum var. hypoleucum

Skunk cabbage

Lysichiton americanus syn Lysichiton camtschatcensis, Lysichitum americanum

Skunk bush

Oemleria cerasiformis syn Nuttallia cerasiformis, Osmaronia cerasiformis

Slender speedwell

Veronica filiformis

Small-flowered alumroot

Heuchera micrantha var erubescens

Smooth woodrush Luzula glabrata, Juncus glabrata
Snake Berry Symphoricarpos albus syn Symphoricarpos racemosus, Symphoricarpos rivularis, Symphoricarpos albus var. laevigatus, Symphoricarpos albus var. pauciflorus, Symphoricarpos pauciflorus, Symphoricarpos racemosus

Snake Plantain

Plantago lanceolata syn Plantago altissima, Plantago lanceolata var. sphaerostachya

Snakeberry

Maianthemum dilatatum syn Maianthemum bifolium ssp. kamtschaticum, Maianthemum bifolium var. kamtschaticum, Maianthemum kamtschaticum, Maianthemum bifolium var. dilatatum

Snakeberry Solanum dulcamara syn Solanum dulcamara f. albiflorum, Solanum dulcamara var. canescens, Solanum dulcamara var. pubescens, Solanum dulcamara var. villosissimum

Snakeroot

Sanicula crassicaulis

Snakeweed

Plantago major syn Plantago asiatica auct. non, Plantago halophila, Plantago major ssp. intermedia, Plantago major var. asiatica auct. non, Plantago major var. intermedia, Plantago major var. pachyphylla, Plantago major var. pilgeri, Plantago major var. scopulorum
Snap Grass Hyacinthoides nonscripta, Endymion nonscripta, Scilla nonscripta, Scilla nutans
Snowberry Symphoricarpos albus syn Symphoricarpos racemosus, Symphoricarpos rivularis, Symphoricarpos albus var. laevigatus, Symphoricarpos albus var. pauciflorus, Symphoricarpos pauciflorus, Symphoricarpos racemosus

Snowy campion

Silene latifolia ssp alba syn Lychnis alba, Lychnis pratensis, Lychnis ×loveae, Lychnis vespertina, Melandrium album, Silene alba, Silene pratensis, Silene pratensis subsp. pratensis

Soldiers and sailors

Plantago lanceolata syn Plantago altissima, Plantago lanceolata var. sphaerostachya

Soreahiirenporras

Athyrium filix-femina

Spanish Bluebell Hyacinthoides hispanica syn Endymion campanulatus, Endymion hispanicus, Hyacinthoides non-scripta subsp. hispanica, Hyacinthoides racemosa, Scilla hispanica
Sparrow vetch Vicia hirsuta syn Ervum hirsutum, Ervum terronii, Vicia hirsuta var. terronii

Spear thistle, Speerdissel

Cirsium vulgare syn Carduus lanceolatus, Carduus vulgaris, Cirsium lanceolatum, Cirsium lanceolatum var. hypoleucum

Spetsgroblad, Spitzwegerich

Plantago lanceolata syn Plantago altissima, Plantago lanceolata var. sphaerostachya

Spiny sowthistle, Spiny-leaf sow-thistle

Sonchus asper syn Sonchus asper ssp. asper

Spiny swamp currant

Ribes lacustre syn Limnobotrya lacustris, Ribes grossularioides, Ribes lacustre var. parvulum, Ribes oxycanthoides var. lacustre

Spoonleaf purple everlasting Gnaphalium purpureum syn Gnaphalium purpureum, Gnaphalium purpureum var. purpureum, Gamochaeta purpurea

Spotted Coralroot

Corallorhiza maculata var. maculata syn Corallorhiza maculata var. flavida, Corallorrhiza maculata var. flavida,
Corallorhiza maculata f. maculata, Corallorhiza multiflora,
Corallorhiza multiflora var. sulphurea, Corallorrhiza maculata var. maculata, Corallorrhiza multiflora, Cladorhiza maculata

Spring Cress

Cardamine oligosperma

Spurge laurel Daphne laureola syn Daphne laureola var. philippii, Daphne philippii
Squill Hyacinthoides nonscripta, Endymion nonscripta, Scilla nonscripta, Scilla nutans
Squill Hyacinthoides hispanica syn Endymion campanulatus, Endymion hispanicus, Hyacinthoides non-scripta subsp. hispanica, Hyacinthoides racemosa, Scilla hispanica

Star Flower, Star-of-Bethlehem

Trientalis borealis ssp latifolia syn Trientalis europaea var. latifolia, Trientalis latifolia

Starry Cerastium

Cerastium arvense

Starwort Stellaria media
Sternhyazinthe Hyacinthoides nonscripta, Endymion nonscripta, Scilla nonscripta, Scilla nutans
Sternmiere Stellaria media

Stinking Elder, Stinking Elderberry

Sambucus racemosa syn Sambucus buergeriana, Sambucus racemosa subsp. sieboldiana forma stenophylla, Sambucus callicarpa, Sambucus racemosa subsp. pubens var. arborescens, Sambucus coreana, Sambucus kamtschatica, Sambucus melanocarpa, Sambucus racemosa subsp. pubens var. melanocarpa, Sambucus microbotrys, Sambucus racemosa subsp. pubens var. microbotrys, Sambucus pubens, Sambucus pubens var. arborescens, Sambucus racemosa subsp. pubens var. arborescens, Sambucus pubens f. xanthocarpa, Sambucus pubescens, Sambucus racemosa subsp. pubens, Sambucus racemosa var. laciniata, Sambucus racemosa var. miquelii, Sambucus racemosa var. sieboldiana, Sambucus racemosa f. xanthocarpa, Sambucus racemosa subsp. pubens, Sambucus sibirica, Sambucus racemosa subsp. sibirica, Sambucus sieboldiana, Sambucus racemosa subsp. sieboldiana, Sambucus sieboldiana var. miquelii, Sambucus racemosa subsp. kamtschatica, Sambucus sieboldiana var. stenophylla, Sambucus racemosa subsp. sieboldiana forma stenophylla, Sambucus sieboldiana f. xanthocarpa, Sambucus sieboldiana var. xanthocarpa, Sambucus racemosa subsp. sieboldiana forma nakaiana, Sambucus tigranii, Sambucus racemosa subsp. racemosa

Stitchwort Stellaria media

Stone clover

Trifolium arvense

Sugarscoop

Tiarella trifoliata

Sulphur cinquefoil

Potentilla recta syn Potentilla recta var. obscura, Potentilla recta var. pilosa, Potentilla recta var. sulphurea, Potentilla recta var. warrensii, Potentilla pilosa, Potentilla sulphurea, Potentilla laciniosa, Potentilla transcaspia
Sureau rouge Sambucus racemosa syn Sambucus buergeriana, Sambucus racemosa subsp. sieboldiana forma stenophylla, Sambucus callicarpa, Sambucus racemosa subsp. pubens var. arborescens, Sambucus coreana, Sambucus kamtschatica, Sambucus melanocarpa, Sambucus racemosa subsp. pubens var. melanocarpa, Sambucus microbotrys, Sambucus racemosa subsp. pubens var. microbotrys, Sambucus pubens, Sambucus pubens var. arborescens, Sambucus racemosa subsp. pubens var. arborescens, Sambucus pubens f. xanthocarpa, Sambucus pubescens, Sambucus racemosa subsp. pubens, Sambucus racemosa var. laciniata, Sambucus racemosa var. miquelii, Sambucus racemosa var. sieboldiana, Sambucus racemosa f. xanthocarpa, Sambucus racemosa subsp. pubens, Sambucus sibirica, Sambucus racemosa subsp. sibirica, Sambucus sieboldiana, Sambucus racemosa subsp. sieboldiana, Sambucus sieboldiana var. miquelii, Sambucus racemosa subsp. kamtschatica, Sambucus sieboldiana var. stenophylla, Sambucus racemosa subsp. sieboldiana forma stenophylla, Sambucus sieboldiana f. xanthocarpa, Sambucus sieboldiana var. xanthocarpa, Sambucus racemosa subsp. sieboldiana forma nakaiana, Sambucus tigranii, Sambucus racemosa subsp. racemosa

Summer coralroot

Corallorhiza maculata var. maculata syn Corallorhiza maculata var. flavida, Corallorrhiza maculata var. flavida,
Corallorhiza maculata f. maculata, Corallorhiza multiflora,
Corallorhiza multiflora var. sulphurea, Corallorrhiza maculata var. maculata, Corallorrhiza multiflora, Cladorhiza maculata

Svartkämpar

Plantago lanceolata syn Plantago altissima, Plantago lanceolata var. sphaerostachya

Swamp lantern

Lysichiton americanus syn Lysichiton camtschatcensis, Lysichitum americanum

Swamp currant, Swamp gooseberry

Ribes lacustre syn Limnobotrya lacustris, Ribes grossularioides, Ribes lacustre var. parvulum, Ribes oxycanthoides var. lacustre

Sweet butterbur