Dig deeper at SERNEC, a consortium of southeastern herbaria.
This is a less familiar species than is its "cousin" (J. americana), in part because it often grows in mosquito-infested places. Read more at Vascular Plants of North Carolina.
Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Lamiids: Lamiales
Manual of the Southeastern Flora (Small, 1933)
Coastal Plain Water-willow, Looseflower Water-willow