The top three culprits are English ivy, oriental bittersweet and porcelainberry.
From the washingtonpost.com
Kudzu is joined by English ivy, Japanese honeysuckle and oriental bittersweet, to name a few.
From the sciencedaily.com
Oriental bittersweet threatens to displace our native species.
From the timesunion.com
Oriental bittersweet is a vigorous vine that grows so large it can be mistaken for the tree it grows on.
From the dailyherald.com
Oriental bittersweet is expanding in North American forests, where it has reduced native tree survival.
From the sciencedaily.com
Unchecked, oriental bittersweet kills trees.
From the timesunion.com
Oriental bittersweet is a vigorously growing vine.
From the delawareonline.com
The other is the nonnative and more obnoxious invasive oriental bittersweet, which has blunt thorns and berries that grow along the whole vine.
From the timesunion.com
Proactive screening of invasion risk before new plants are introduced could prevent problems like oriental bittersweet, pictured here dominating a hedgerow, including large trees.