similar to the common sunflower with slender usually branching stems common in central United States
pineapple weed
Noun
annual aromatic weed of Pacific coastal areas (United States and northeastern Asia) having bristle-pointed leaves and rayless yellow flowers
pteropogon
Noun
southern Australian plant having feathery hairs surrounding the fruit
painted daisy
Noun
spring-flowering garden perennial of Asiatic origin having finely divided aromatic leaves and white to pink-purple flowers
pyrethrum
Noun
spring-flowering garden perennial of Asiatic origin having finely divided aromatic leaves and white to pink-purple flowers
pyrethrum
Noun
white-flowered pyrethrum of Balkan area whose pinnate leaves are white and silky-hairy below
pyrethrum
Noun
made of dried flower heads of pyrethrum plants
prairie coneflower
Noun
plant similar to the Mexican hat coneflower
prairie coneflower
Noun
coneflower of central to southwestern United States
prairie dock
Noun
stout perennial herb of the eastern United States with whitish flowers
peach bells
Noun
perennial European bellflower with racemose white or blue flowers
peach bell
Noun
perennial European bellflower with racemose white or blue flowers
phantom orchid
Noun
waxy white nearly leafless plant with stems in clusters and racemes of white flowers
purple orchis
Noun
North American orchid having a spike of violet-purple flowers mixed with white
purple-hooded orchis
Noun
North American orchid having a spike of violet-purple flowers mixed with white
puttyroot
Noun
North American orchid bearing a single leaf and yellowish-brown flowers
pseudobulb
Noun
a solid bulblike enlargement of the stem of some orchids
purple-fringed orchid
Noun
North American orchid similar to Habenaria psycodes with larger paler flowers
purple-fringed orchid
Noun
North American orchid with clusters of fragrant purple fringed flowers
prairie orchid
Noun
orchid of boggy or wet lands of north central United States having racemes of very fragrant creamy or greenish white flowers
prairie white-fringed orchis
Noun
orchid of boggy or wet lands of north central United States having racemes of very fragrant creamy or greenish white flowers
prairie white-fringed orchid
Noun
of central North America
purple fringeless orchid
Noun
orchid of northeastern and alpine eastern North America closely related to the purple fringed orchids but having rosy-purple or violet flowers with denticulate leaf divisions
purple fringeless orchis
Noun
orchid of northeastern and alpine eastern North America closely related to the purple fringed orchids but having rosy-purple or violet flowers with denticulate leaf divisions
pleurothallis
Noun
any of numerous small tufted orchids of the genus Pleurothallis having leathery to fleshy leaves and racemes of 1 to many small flowers
pogonia
Noun
any hardy bog orchid of the genus Pogonia: terrestrial orchids having slender rootstocks and erect stems bearing one or a few leaves and a solitary terminal flower
primrose family
Noun
a dicotyledonous family of the order Primulales with a regular flower
primrose
Noun
any of numerous short-stemmed plants of the genus Primula having tufted basal leaves and showy flowers clustered in umbels or heads
primula
Noun
any of numerous short-stemmed plants of the genus Primula having tufted basal leaves and showy flowers clustered in umbels or heads
paigle
Noun
early spring flower common in British isles having fragrant yellow or sometimes purple flowers
paigle
Noun
Eurasian primrose with yellow flowers clustered in a one-sided umbel
polyanthus
Noun
florists' primroses
pimpernel
Noun
any of several plants of the genus Anagallis
pimpernel
Noun
European garden herb with purple-tinged flowers and leaves that are sometimes used for salads
poor man's weatherglass
Noun
herb with scarlet or white or purple blossoms that close at approach of rainy weather
pansy orchid
Noun
any of various orchids of the genus Miltonia having solitary or loosely racemose showy broadly spreading flowers
phaius
Noun
an orchid of the genus Phaius having large plicate leaves and racemes of showy flowers
purple-fringed orchis
Noun
North American orchid similar to Habenaria psycodes with larger paler flowers
purple-fringed orchis
Noun
North American orchid with clusters of fragrant purple fringed flowers
plumbago
Noun
any plumbaginaceous plant of the genus Plumbago
plumbago
Noun
used as a lubricant and as a moderator in nuclear reactors
pampas grass
Noun
tall perennial grass of pampas of South America having silvery plumes and growing in large dense clumps
plumed tussock
Noun
tall grass of New Zealand grown for plumelike flower heads
plume grass
Noun
a reedlike grass of the genus Erianthus having large plumes
pearl millet
Noun
tall grass having cattail like spikes
perennial ryegrass
Noun
European perennial grass widely cultivated for pasture and hay and as a lawn grass
prairie cordgrass
Noun
North American cordgrass having leaves with dry membranous margins and glumes with long awns
prairie grass
Noun
handsome hardy North American grass with foliage turning pale bronze in autumn
panic grass
Noun
any grass of the genus Panicum
paspalum
Noun
tall tufted perennial tropical American grass naturalized as pasture and forage grass in southern United States