Viola nuttallii (Nuttall's violet or yellow prairie violet) is a perennial herbaceous plant in the violet family (Violaceae), and is one of the few violet species with lanceolate leaves. It is native to the western Canada and the north-central and western United States.
The species name Viola means violet in Latin. For Nuttall's violet the only purple coloring is the nectar guides in the throat of the flower.
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