any of various western American plants of the genus Grindelia having resinous leaves and stems formerly used medicinally
rosinweed
Noun
North American perennial having a resinous odor and yellow flowers
rhodanthe
Noun
Australian annual everlasting having light pink nodding flower heads
rough-stemmed goldenrod
Noun
a variety of goldenrod
ragwort
Noun
American ragwort with yellow flowers
ragwort
Noun
widespread European weed having yellow daisylike flowers
rampion
Noun
bellflower of Europe and Asia and North Africa having bluish flowers and an edible tuberous root used with the leaves in salad
red helleborine
Noun
orchid of Mediterranean and Asia having a lax spike of bright rose-pink flowers
rampion bellflower
Noun
bellflower of Europe and Asia and North Africa having bluish flowers and an edible tuberous root used with the leaves in salad
rosebud orchid
Noun
orchid of central and northern South America having 1- to 3-blossomed racemes of large showy rose-colored flowers
rattlesnake plantain
Noun
any of several small temperate and tropical orchids having mottled or striped leaves and spikes of small yellowish-white flowers in a twisted raceme
rein orchid
Noun
any of several American wildflowers with a kidney-shaped lip
rein orchis
Noun
any of several American wildflowers with a kidney-shaped lip
ram's-head
Noun
orchid of northern North America having a brownish-green flower and red-and-white lip suggestive of a ram's head
ram's-head lady's slipper
Noun
orchid of northern North America having a brownish-green flower and red-and-white lip suggestive of a ram's head
ragged orchid
Noun
fringed orchid of the eastern United States having a greenish flower with the lip deeply lacerated
ragged orchis
Noun
fringed orchid of the eastern United States having a greenish flower with the lip deeply lacerated
ragged-fringed orchid
Noun
fringed orchid of the eastern United States having a greenish flower with the lip deeply lacerated
round-leaved rein orchid
Noun
orchid having a raceme of large greenish-white flowers on a single flower stalk growing between two elliptic or round basal leaves lying on the ground
red pimpernel
Noun
herb with scarlet or white or purple blossoms that close at approach of rainy weather
rattlesnake orchid
Noun
any of various orchids of the genus Pholidota having numerous white to brown flowers in spiraling racemes clothed in slightly inflated bracts and resembling a rattlesnake's tail
reed grass
Noun
any of various tall perennial grasses of the genus Calamagrostis having feathery plumes
ragi
Noun
East Indian cereal grass whose seed yield a somewhat bitter flour, a staple in the Orient
ragee
Noun
East Indian cereal grass whose seed yield a somewhat bitter flour, a staple in the Orient
reed meadow grass
Noun
a pasture grass of moist places throughout North America
rattan cane
Noun
the stem of various climbing palms of the genus Calamus and related genera used to make wickerwork and furniture and canes
reed canary grass
Noun
perennial grass of marshy meadows and ditches having broad leaves
ribbon grass
Noun
perennial grass of marshy meadows and ditches having broad leaves
rye grass
Noun
any of several annual or perennial Eurasian grasses
ryegrass
Noun
any of several annual or perennial Eurasian grasses
ricegrass
Noun
any grass of the genus Oryzopsis
rice grass
Noun
any grass of the genus Oryzopsis
rush grass
Noun
grass having wiry stems and sheathed panicles
rush-grass
Noun
grass having wiry stems and sheathed panicles
rough bristlegrass
Noun
European foxtail naturalized in North America
rush nut
Noun
European sedge having small edible nutlike tubers
red bryony
Noun
bryony having fleshy roots pale green flowers and very small red berries
rose mallow
Noun
plant with terminal racemes of showy white to pink or purple flowers
rose mallow
Noun
showy shrub of salt marshes of the eastern United States having large rose-colored flowers
reed mace
Noun
tall marsh plant with cylindrical seed heads that explode when mature shedding large quantities of down
rag gourd
Noun
any of several tropical annual climbers having large yellow flowers and edible young fruits
reedmace
Noun
tall marsh plant with cylindrical seed heads that explode when mature shedding large quantities of down
red beech
Noun
large tree of Australasia
red beech
Noun
North American forest tree with light green leaves and edible nuts
ribbon tree
Noun
deciduous New Zealand tree whose inner bark yields a strong fiber that resembles flax and is called New Zealand cotton
roselle
Noun
East Indian sparsely prickly annual herb or perennial subshrub widely cultivated for its fleshy calyxes used in tarts and jelly and for its bast fiber
rozelle
Noun
East Indian sparsely prickly annual herb or perennial subshrub widely cultivated for its fleshy calyxes used in tarts and jelly and for its bast fiber
red false mallow
Noun
false mallow of western United States having racemose red flowers
red sorrel
Noun
East Indian sparsely prickly annual herb or perennial subshrub widely cultivated for its fleshy calyxes used in tarts and jelly and for its bast fiber
rose of Sharon
Noun
Asiatic shrub or small shrubby tree having showy bell-shaped rose or purple or white flowers and usually three-lobed leaves