1. Large genus of subshrubs or herbs having showy blue or purple or red or yellow or white flowers; mostly western North America
   - Penstemon, genus Penstemon

Type of: asterid dicot genus

Part of: family Scrophulariaceae, figwort family, foxglove family, Scrophulariaceae

Encyclopedia: Pentstemon

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• Columbia University
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• Columbidae
• columbiform bird
• Columbiformes
• columbine
• columbite
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• columbium
• columbo
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• columella
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• Clinton's lily
• clintonia
• Clintonia andrewsiana
• Clintonia borealis
• Clintonia uniflora
• Clio
• Clioquinol
• clip