bur marigold of eastern and northern United States and Canada common in wet pastures and meadows
slender knapweed
Noun
a variety of knapweed
sweet sultan
Noun
Asian plant widely grown for its sweetly fragrant pink flowers
sweet sultan
Noun
perennial of mountains of Iran and Iraq
sweet sultan
Noun
annual of Mediterranean to Portugal having hairy stems and minutely spiny-toothed leaves and large heads of yellow flowers
sea aster
Noun
a common European aster that grows in salt marshes
sea starwort
Noun
a common European aster that grows in salt marshes
silversword
Noun
low-growing plant found only in volcanic craters on Hawaii having rosettes of narrow pointed silver-green leaves and clusters of profuse red-purple flowers on a tall stem
sagebrush
Noun
any of several North American composite subshrubs of the genera Artemis or Seriphidium
sage brush
Noun
any of several North American composite subshrubs of the genera Artemis or Seriphidium
southernwood
Noun
shrubby European wormwood naturalized in North America
small white aster
Noun
a variety of aster
smooth aster
Noun
a variety of aster
southern aster
Noun
a variety of aster
starved aster
Noun
a variety of aster
sweet wormwood
Noun
wormwood of southeastern Europe to Iran
sand sage
Noun
silver-haired shrub of central and southern United States and Mexico
silvery wormwood
Noun
silver-haired shrub of central and southern United States and Mexico
solitary pussytoes
Noun
a variety of pussytoes
stinking mayweed
Noun
widespread rank-smelling weed having white-rayed flower heads with yellow discs
stinking chamomile
Noun
widespread rank-smelling weed having white-rayed flower heads with yellow discs
sneezeweed yarrow
Noun
Eurasian herb having loose heads of button-shaped white flowers and long grey-green leaves that cause sneezing when powdered
sneezewort
Noun
Eurasian herb having loose heads of button-shaped white flowers and long grey-green leaves that cause sneezing when powdered
sea dahlia
Noun
stout herb with flowers one to a stalk
spreading fleabane
Noun
well-branched plant with hairy leaves and stems each with a solitary flower head with narrow white or pink or lavender rays
seaside daisy
Noun
slightly succulent perennial with basal leaves and hairy sticky stems each bearing a solitary flower head with narrow pink or lavender rays
showy daisy
Noun
plant having branching leafy stems each branch with an especially showy solitary flower head with many narrow pink or lavender or white rays
sickleweed golden aster
Noun
a variety of golden aster
spotted Joe-Pye weed
Noun
North American herb having whorled leaves and terminal clusters of small pinkish or purple flower heads
succory
Noun
perennial Old World herb having rayed flower heads with blue florets cultivated for its root and its heads of crisp edible leaves used in salads
sun marigold
Noun
any of several South African plants grown for the profusion of usually yellow daisylike flowers and mounds of aromatic foliage
star of the veldt
Noun
any of several South African plants grown for the profusion of usually yellow daisylike flowers and mounds of aromatic foliage
stemless carline thistle
Noun
stemless perennial having large flowers with white or purple-brown florets nestled in a rosette of long spiny leaves hairy beneath
safflower
Noun
thistlelike Eurasian plant widely grown for its red or orange flower heads and seeds that yield a valuable oil
safflower seed
Noun
seed of the safflower
spear thistle
Noun
European thistle with rather large heads and prickly leaves
star-thistle
Noun
Mediterranean annual or biennial herb having pinkish to purple flowers surrounded by spine-tipped scales
snakeweed
Noun
low-growing sticky subshrub of southwestern United States having narrow linear leaves on many slender branches and hundreds of tiny yellow flower heads
shasta daisy
Noun
hybrid garden flower derived from Chrysanthemum maximum and Chrysanthemum lacustre having large white flower heads resembling oxeye daisies
sheep plant
Noun
cushion-forming New Zealand herb having leaves densely covered with tawny hairs
sheep plant
Noun
perennial prostrate mat-forming herb with hoary woolly foliage
snakeroot
Noun
any of various North American plants of the genus Liatris having racemes or panicles of small discoid flower heads
snakeroot
Noun
a plant of the genus Sanicula having palmately compound leaves and unisexual flowers in panicled umbels followed by bristly fruit
sneezeweed
Noun
any of various plants of the genus Helenium characteristically causing sneezing
sticky aster
Noun
wild aster having leafy stems and flower heads with narrow bright reddish-lavender or purple rays
sunflower
Noun
any plant of the genus Helianthus having large flower heads with dark disk florets and showy yellow rays
swamp sunflower
Noun
sunflower of eastern North America having narrow leaves and found in bogs
stem lettuce
Noun
lettuce valued especially for its edible stems
showy sunflower
Noun
tall rough-leaved perennial with a few large flower heads
sweet false chamomile
Noun
annual Eurasian herb similar in fragrance and medicinal uses to chamomile though taste is more bitter and effect is considered inferior