Assertion: iris's root | /r/HasProperty | harvested in early fall
Facets:
value: by multiple native american tribes
type: OTHER
Source sentences:
text: The dried roots of I. versicolor and I. virginica were harvested in late summer or early fall by multiple Native American tribes and used as de-toxicants (liver and kidney), dermatological aids, and pain-relievers (2, 3, 4).