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Hairy Vines on Trees: Poison Ivy vs. Climbing Hydrangea

Both poison ivy (Toxicodendron radicans) and native climbing hydrangea (Decumaria barbara) have conspicuously hairy vines. The key difference: climbing hydrangea leaves are opposite; poison ivy leaves are alternate.

Climbing hydrangea

Poison ivy

About Gardening: Removing Large Poison Ivy Vines from Trees Safely; That "Vine" on Your Maple Is Not a Root—Here's How to Remove It Safely; Virginia Creeper vs. Poison Ivy: Five Leaflets, Tendrils, and Possible Rash; Poison Ivy Berries: What They Really Look Like; Sumac Trees: Identification, Care & Uses (Including Toxic Species); Winter Poison Ivy Removal and Rash Prevention; Poison Ivy Leaf Galls: Harmless Mite Damage That Doesn't Slow the Vine; Poison Ivy's Few Natural Enemies; Poison Ivy vs. Poison Oak in Georgia: How to Tell Them Apart; Safely Removing Poison Ivy Vines from Fallen Trees

Garden Articles

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Plants

Selective Poison Ivy Control in English Ivy Groundcover

Poison Ivy in Mulch: Identification, Removal & Prevention

English Ivy on Pine Trees: A Deadly Combination

Concord Grape Vine Frozen to Ground: Will It Recover?

Identifying a Thorny, Three-Leaved Plant: Poison Ivy or Something Else?

Poison Ivy in the Garden: Identification, Removal & Home Remedies

Managing Poison Ivy: Vigilance Over Eradication