psoralea : Idioms & Phrases
genus psoralea
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noun widely distributed genus of herbs or shrubs with glandular compound leaves and spicate or racemose purple or white flowers
Psoralea.
WordNet
psoralea esculenta
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noun densely hairy perennial of central North America having edible tuberous roots
pomme de prairie; pomme blanche; Indian breadroot; breadroot.