genus penstemon definition

  • noun:
    • big genus of subshrubs or natural herbs having showy blue or purple or purple or yellow or white flowers; mostly western the united states
    • huge genus of subshrubs or herbs having showy blue or purple or purple or yellow or white flowers; mainly western North America
    • large genus of subshrubs or herbs having showy blue or purple or purple or yellowish or white plants; mostly western the united states
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