Species: 

Hedera helix

Common Name: 

English ivy

Systems Affected (standardized): 

urban/garden, forest/woodland

Regions(s) present (updated by AB): 

SE

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Impacts: 

Vines climb up tree trunks and envelop branches and twigs, blocking sunlight from the host tree’s foliage, impeding photosynthesis. An infested tree will exhibit decline for years before it dies. The weight of vines also makes trees susceptible to blowing over in storms. This plant has been confirmed as a reservoir for bacterial leaf scorch (Xylella fastidiosa)

Source? likely to be reintroduced: 

Highly likely to be transported internationally deliberately
Difficult/costly to control

Info Blurb: 

Climbs trees, blocking sunlight and impeding photosynthesis. The weight of vines also makes trees susceptible to blowing over in storms. Intentionally planted as an ornamental.

Native Regions in OK: 

NONE

Current and past designations: 

AR

Present in OK?

Present in Bordering States?

TX, NM, CO, MO, AR, LA

Has Legal Status in BS?

NONE