Classification
Within iNaturalist.org

All Names

  • English
    • Pacific Poison Oak
    • Western Poison Oak
  • Scientific Names
    • Toxicodendron diversilobum
    • Rhus diversiloba

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Recent observations

Photos / Sounds

What

Pacific Poison Oak Toxicodendron diversilobum

Observer

kevinhintsa

Date

September 18, 2014 11:29 AM PDT

Description

This was at Oak Knoll Trail in the burn area of the Morgan Fire . Perhaps growing on a stump ?

Photos / Sounds

Square

What

Western Poison Oak Toxicodendron diversilobum

Observer

myang

Date

September 2, 2014 02:00 PM PDT

Description

Frequently seen at Eaton Canyon. Mostly symbiotic with Quercus agrifolia as veins. Leaves are turning red.

Photos / Sounds

Square

What

Western Poison Oak Toxicodendron diversilobum

Observer

jayjay

Date

September 16, 2014

Description

Moist Canyon, Eaton Canyon

Photos / Sounds

Square

What

Pacific Poison Oak Toxicodendron diversilobum

Observer

dackerly

Date

September 7, 2014 04:04 PM PDT

Description

Understory eucalyptus woodland

Photos / Sounds

Square

What

Western Poison Oak Toxicodendron diversilobum

Observer

kucycads

Date

September 9, 2014

Photos / Sounds

What

Pacific Poison Oak Toxicodendron diversilobum

Observer

mcduck

Date

May 19, 2014

Description

Blue Oak/Sagebrush habitat, on bank of dry stream bed.

Photos / Sounds

What

Pacific Poison Oak Toxicodendron diversilobum

Observer

mcduck

Date

April 14, 2008

Place

(Somewhere...)

Description

Blue Oak/Sagebrush habitat.

Photos / Sounds

Square

What

Western Poison Oak Toxicodendron diversilobum

Observer

dpom

Date

August 29, 2014

Photos / Sounds

Square

What

Pacific Poison Oak Toxicodendron diversilobum

Observer

janetplant

Date

August 27, 2014 10:24 AM PDT

Photos / Sounds

What

Pacific Poison Oak Toxicodendron diversilobum

Observer

mrchasse

Date

July 31, 2014 01:46 PM PDT

Description

Fasciated patch just below Lincoln Blvd. on west side of the road.

Photos / Sounds

Square

What

Pacific Poison Oak Toxicodendron diversilobum

Observer

hhylt

Date

August 26, 2014 10:33 AM PDT

Photos / Sounds

Square

What

Pacific Poison Oak Toxicodendron diversilobum

Observer

sea-kangaroo

Date

August 24, 2014 01:56 PM PDT
View all observations

Description from Wikipedia

Toxicodendron diversilobum, commonly named Pacific poison oak or western poison oak (syn. Rhus diversiloba), is in the Anacardiaceae family (the sumac family).

No range data available.