Life cycle: Perennial woody vine.
Leaves: Alternate, compound with three shiny leaflets. Leaflet margins may be smooth, toothed or lobed. The side leaflets occur on very short stalks; the middle leaflet occurs on a much longer stalk. Leaves may turn bright red in the fall. Contact with any part of this plant can cause a reaction in sensitive people.
Stems: Shrubby or climbing, woody vines are supported by aerial roots.
Flowers and fruit: Small, inconspicuous, yellow to green flowers have five petals. Fruit are gray to white berries (drupes).
Reproduction: Seeds, creeping roots and stems, which may root if in contact with the ground. |
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| Compound leaf of poison ivy. |
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| Poison ivy aerial roots. |
Poison ivy flower. |
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| Poison ivy foliage. |
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