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Celastrus orbiculatus Thunb.
Oriental Bittersweet

Celastraceae — Bittersweet family
Invasive non-native

Celastrus orbiculatus
New Castle County
May 2003
Celastrus orbiculatus
White Clay Creek State Park -- Pump House Road
November 2006
This plant is a bad weed in Delaware.  The similar native bittersweet, Celastrus scandens, is virtually gone.
Celastrus orbiculatus
White Clay Creek State Park -- Creek Road
May 2016
Pistillate flowers
Celastrus orbiculatus
White Clay Creek State Park -- Creek Road
May 2016
Staminate flowers