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University of Connecticut   Connecticut Invasive Plant Working Group


Photo Credit: Nicole Gabelman, UConn Plant Science and Landscape Architecture

Oriental or Asiatic Bittersweet (Celastrus orbiculatus) is a highly invasive, non-native vine that grows vigorously, damaging trees and other plants and forming dense stands. Bittersweet produces an abundance of bright fruits, which are spread by birds and other animals to new locations.

The sale of Oriental bittersweet has been prohibited in Connecticut since 2004. The law also prohibits the importation, purchase, and cultivation of bittersweet and other listed plants. Fines for violations of the law are listed at $50 per plant. The law includes all reproductive portions of the plant, including seeds.

Review the full text of the law here.

CIPWG's 1 page fact sheet for this species is available here.

A longer fact sheet is available from the Plant Conservation Alliance here.

Read a recent DEEP press release about bittersweet and alternatives: here.

If you see invasive Oriental bittersweet for sale in Connecticut, please contact the CT Invasive Plant Coordinator by email at

Bamboo in Connecticut

Bamboo information is available here.

2013 CIPWG Annual Report

The 2013 Connecticut Invasive Plant Working Group (CIPWG) Annual Report is now available. Click here to view the report.

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Volunteer Corner

Focus Species:

Mile-a-Minute Vine
Giant Hogweed
Report a Plant- EDDMapS

About This Site

The CONNECTICUT INVASIVE PLANT WORKING GROUP (CIPWG) is a consortium of individuals, organizations, and agencies concerned with invasive plant issues.

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University of Connecticut
Department of Plant Science and Landscape Architecture
1390 Storrs Rd Unit 4163
Storrs, CT 06269