Wildflowers - Nez Perce National Historical Park (U.S. National Park Service) Root foods and fish were the primary staples of the traditional Nez Perce diet. The 'root foods' include all plants (usually hehen, 'soft' herbaceous plants) with underground parts used for food: roots, bulbs, tubers, corms, and rhizomes. Nez Perce people enjoyed a great diversity of root food plants. Some neighboring groups had just a few kinds of root foods abundant in their home territories and relied on trade with the Nez Perce for roots that were unavailable.
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