Western Poison Ivy

Toxicodendron rydbergii (Small ex Rydb.) Greene

Sumac family

Plant Type
Shrub, Forb/herb, Subshrub, Vine
Life Cycle
Perennial
Mature Height
10.0 feet
Flower Color
White, Yellow
Bloom Time
Mid Spring, Late Spring

Growing Conditions

Light

Shade Tolerance Tolerant

Native Range

  • CAN:  Alberta, British Columbia, Manitoba, New Brunswick, Nova Scotia, Ontario, Prince Edward I., Québec, Saskatchewan, Yukon
  • USA:  Arizona, Connecticut, Idaho, Illinois, Indiana, Iowa, Kansas, Maine, Maryland, Massachusetts, Michigan, Minnesota, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode I., South Dakota, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming
  • MEX:  Mexico Northeast, Mexico Northwest

Regional Native Status: L48 (N), CAN (N)

State-level native status is based on data available through Plants of the World Online. Regional Native Status comes from the USDA Plants Database. For more detailed native status information, please refer to BONAP.

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