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Poison Oak

Toxicodendron Diversilobum

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Overview

Toxicodendron diversilobum, commonly known as Poison Oak, is a deciduous shrub native to western North America's forests and grasslands. It typically grows 1-3 feet high, with a spread of up to 5 feet. Its leaves, comprising three leaflets with variable shapes, resemble oak leaves and turn a striking red-orange in fall. Caution: The plant contains urushiol, causing severe allergic reactions upon contact. It thrives in U.S. hardiness zones 5-9.

Sun Full, Half, ShadeWater Low, Medium, Very LowZones 8–10Type Shrub, VineClimate Temperate

Poison Oak (Toxicodendron Diversilobum) — Native to the western regions of North America

Culture

Sun: Full, Half, Shade
Water: Low, Medium, Very Low
USDA zones: 8–10

Shape & size

Classification

Type: Shrub, Vine
Family: Anacardiaceae
Climate: Temperate

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Photos (83)

Poison Oak (Toxicodendron Diversilobum) — and considering removal if close human interaction is likely

Poison Oak (Toxicodendron Diversilobum) — Awareness and proper handling can ensure the beauty and dangers of this native species are responsibly managed

Poison Oak (Toxicodendron Diversilobum) — Poison Oak, is a deciduous shrub that demands both respect and caution

Poison Oak (Toxicodendron Diversilobum) — are essential safety precautions

Poison Oak (Toxicodendron Diversilobum) — Maintaining a safe distance in design; poison Oak can form dense thickets if allowed, image 59

Poison Oak (Toxicodendron Diversilobum) — Direct contact can lead to an allergic reaction, with symptoms ranging from mild to severe rash and, image 37

Poison Oak (Toxicodendron Diversilobum) — comprising three leaflets with variable shapes

Poison Oak (Toxicodendron Diversilobum) — it is critical to educate clients on Poison Oak's potential human health impacts; and considering removal if close

Poison Oak (Toxicodendron Diversilobum) — caution is key; every part of this plant; comprising three leaflets with variable shapes

Poison Oak (Toxicodendron Diversilobum) — this plant thrives in wooded areas; comprising three leaflets with variable shapes, image 52

Poison Oak (Toxicodendron Diversilobum) — this plant thrives in wooded areas; comprising three leaflets with variable shapes

Poison Oak (Toxicodendron Diversilobum) — commonly known as Poison Oak; comprising three leaflets with variable shapes

Poison Oak (Toxicodendron Diversilobum) — this plant thrives in wooded areas

Poison Oak (Toxicodendron Diversilobum) — is a deciduous shrub native to western North America's forests and grasslands; poison Oak can form dense thickets if

Poison Oak (Toxicodendron Diversilobum) — It typically grows 1-3 feet high, with a spread of up to 5 feet

Poison Oak (Toxicodendron Diversilobum) — resemble oak leaves and turn a striking red-orange in fall

Poison Oak (Toxicodendron Diversilobum) — caution is key; every part of this plant; comprising three leaflets with variable shapes, image 55

Poison Oak (Toxicodendron Diversilobum) — While it might seduce with its autumnal hues

Poison Oak (Toxicodendron Diversilobum) — are essential safety precautions; comprising three leaflets with variable shapes, image 61

Poison Oak (Toxicodendron Diversilobum) — Poison Oak can form dense thickets if allowed, image 32

Poison Oak (Toxicodendron Diversilobum) — Poison Oak, is a deciduous shrub that demands both respect and caution; comprising three leaflets with variable shapes

Poison Oak (Toxicodendron Diversilobum) — Awareness and proper handling can ensure the beauty and dangers of this native species are responsibly, image 41

Poison Oak (Toxicodendron Diversilobum) — It typically grows 1-3 feet high, with a spread of up to 5 feet; and considering removal if close human interaction

Poison Oak (Toxicodendron Diversilobum) — Poison Oak can form dense thickets if allowed

Photographs by 10 contributors

F ASTILY, CC BY-SA 4.0 · source
The original uploader was Mav at…, CC BY-SA 3.0 · source
Jcomeau ictx, CC BY-SA 3.0 · source
Tracie Hall from Orange County, us, CC BY-SA 2.0 · source
Franco Folini from San Francisco, USA, CC BY-SA 2.0 · source
Walter Siegmund (talk), CC BY-SA 3.0 · source
Chris Light, CC BY-SA 4.0 · source
Frank Schulenburg, CC BY-SA 4.0 · source
Region 5 Photography, CC BY 2.0 · source
Björn S..., CC BY-SA 2.0 · source

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