| Dalea purpurea
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| Scientific classification
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| Kingdom:
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Plantae
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| Clade:
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Tracheophytes
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| Clade:
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Angiosperms
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| Clade:
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Eudicots
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| Clade:
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Rosids
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| Order:
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Fabales
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| Family:
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Fabaceae
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| Subfamily:
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Faboideae
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| Genus:
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Dalea
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| Species:
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D. purpurea
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| Binomial name
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Dalea purpurea
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| Varieties
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- Dalea purpurea var. arenicola (Wemple) Barneby
- Dalea purpurea var. purpurea
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| Synonyms
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- Dalea arenicola (Wemple) B.L.Turner (2003)
- Dalea purpurea f. albiflora (W.H.Horr & McGregor) McGregor (1957)
- Dalea purpurea f. arenaria (F.C.Gates) McGregor (1957)
- Dalea violacea Michx. ex Willd. (1802)
- Kuhnistera purpurea (Vent.) MacMill. (1892)
- Kuhnistera violacea (Michx.) Aiton ex Steud. (1840)
- Petalostemon arenicola Wemple (1970)
- Petalostemon mollis Rydb. (1900)
- Petalostemon pubescens A.Nelson (1901)
- Petalostemon purpureus (Vent.) Rydb. (1900)
- Petalostemon purpureus f. albiflorus W.H.Horr & McGregor (1952)
- Petalostemon purpureus f. arenarius F.C.Gates (1911)
- Petalostemon purpureus var. mollis (Rydb.) A.Nelson (1909)
- Petalostemon standleyanus Rydb. (1920)
- Petalostemon violaceus Michx. (1803)
- Psoralea purpurea (Vent.) Poir. (1804)
- Psoralea violacea DC. (1825)
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Dalea purpurea is a species of flowering plant in the legume family known as purple prairie clover. Native to central North America, purple prairie clover is a relatively common member of the Great Plains and prairie ecosystems. It blooms in the summer with dense spikes of bright purple flowers that attract many species of insects.