Plants — 23,508 Species
Top Families in Plants
All Plants Species
Brewer's spruce
Picea breweriana S.Watson
Picea breweriana, or Brewer's spruce, is a large slow-growing endemic conifer often grown as an ornamental tree.
Engelmann spruce
Picea engelmannii Parry ex Engelm.
Picea engelmannii (Engelmann spruce) is an evergreen mountain tree native to western North America, harvested for timber and wood products.
white spruce
Picea glauca (Moench) Voss
Picea glauca, white spruce, is a hardy North American evergreen conifer with economic and ecological importance.
black spruce
Picea mariana (Mill.) Britton et al.
Picea mariana (black spruce) is a boreal North American conifer with ecological, commercial, and ornamental uses.
Siberian spruce
Picea obovata Ledeb.
Picea obovata, or Siberian spruce, is a medium-sized evergreen timber tree native to Siberia and Mongolia with many uses.
blue spruce
Picea pungens Engelm.
Picea pungens (blue spruce) is a Rocky Mountain native conifer widely cultivated as an ornamental and Christmas tree.
red spruce
Picea rubens Sarg.
Picea rubens Sarg. (red spruce) is a late successional conifer native to high eastern North American elevations, with many practical uses.
Schrenk's spruce
Picea schrenkiana Fisch. & C.A.Mey.
Schrenk's spruce (Picea schrenkiana) is a large evergreen conifer used for timber, paper, and ornamental planting.
Sitka spruce
Picea sitchensis (Bong.) Carrière
Picea sitchensis (Sitka spruce) is a large coastal conifer with many commercial and traditional human uses.
chaparral pea
Pickeringia montana Nutt.
Pickeringia montana, the chaparral pea, is a thorny thicket-forming plant with two subspecies native to California.
Yellow-spine Thistle
Picnomon acarna (L.) Cass.
Picnomon is an Asteraceae genus with only one known species, Picnomon acarna, native from Europe to Kazakhstan.
hairyseed bahia
Picradeniopsis absinthifolia (Benth.) B.G.Baldwin
Picradeniopsis absinthifolia is a North American perennial desert aster with yellow flowers native to Mexico and the southwestern US.
Hawkweed Oxtongue
Picris hieracioides L.
Picris hieracioides L., or hawkweed oxtongue, is a Eurasian native invasive herb with yellow summer flowers.
Japanese andromeda
Pieris japonica (Thunb.) D.Don ex G.Don
Pieris japonica is an acid-loving toxic poisonous temperate ornamental shrub with colorful new growth and spring blooms.
Shrub Violet
Pigea floribunda (Lindl.) Lindl.
Pigea floribunda is a disputed-named perennial shrub violet in the Violaceae family native to southern Australia.
Artillery Plant
Pilea microphylla (L.) Liebm.
Pilea microphylla is a small monoecious plant named for its explosive pollen ejection by male flower stamens.
Canada clearweed
Pilea pumila (L.) A.Gray
Pilea pumila, also called Canadian clearweed, is an edible annual plant with known ecological roles, traditional medicinal uses, and educational applications.
camels-foot monkeybread
Piliostigma thonningii (Schumach.) Milne-Redh.
Piliostigma thonningii is an African dioecious tree adapted to bush fires, whose inner bark is used to make rope.
Fireflag
Pillansia templemannii (Baker) L.Bolus
Pillansia is a monotypic Iridaceae genus whose only species Pillansia templemannii is endemic to South Africa’s Cape Province.
Florida pennyroyal
Piloblephis rigida (W.Bartram ex Benth.) Raf.
Piloblephis is a monotypic Lamiaceae genus with one native species, Piloblephis rigida, wild pennyroyal.
orange hawkweed
Pilosella aurantiaca (L.) F.W.Schultz & Sch.Bip.
Pilosella aurantiaca is a low-growing flowering herb native to much of Europe, used in horticulture and European folk medicine.
meadow hawkweed
Pilosella caespitosa (Dumort.) P.D.Sell & C.West
Pilosella caespitosa is a creeping perennial hawkweed, often a noxious invasive weed in North America, historically used for eyesight.
Pilosella echioides (Lumn.) F.W.Schultz & Sch.Bip.
Pilosella echioides (Lumn.) F.W.Schultz & Sch.Bip.
Pilosella echioides is a flowering plant in the Asteraceae family native from Europe to Central Siberia and the Himalaya.
Yellow-devil
Pilosella floribunda (Wimm. & Grab.) Fr.
Pilosella floribunda is a flowering plant with hairy spatula-shaped leaves that blooms clustered flowers from June to July.
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