Common Cowparsnip
Heracleum maximum W. Bartram - Carrot family
Size
Mature Height: Up to around 8.0 feet
Plant Type: Forb/herb
Root Depth: 12 inches
Growth Form: Multiple Stem
Growth Rate: Moderate
Features
Flower Color: White
Conspicuous Flowers: Yes
Bloom Time: Early Summer
Seasonal Growth: Spring and Summer
Evergreen: No
Fall Colors: No
Conditions
Shade Tolerance: Intolerant
Clay Soil Tolerance: Yes
Sandy Soil Tolerance: Yes
Drought Tolerance: Low
Flood Tolerance: Medium
Fire Tolerance: High
Salt Tolerance: None
Ecosystem Interactions
Pollinators: Native Bees; Bombus; Honey Bees; Beetles, Wasps, Flies; Butterflies; Larval Host (Butterfly); Larval Host (Moth)
Larval Species depending on Common Cowparsnip: Agonopterix clemensella, Agonopterix flavicomella, Depressaria pastinacella, Epinotia emarginana, Eupithecia tripunctaria, Lithophane georgii, Papaipema harrisii, Papaipema impecuniosa, Papilio brevicauda, Papilio brevicauda brevicauda, Papilio brevicauda gaspeensis, Papilio machaon, Papilio polyxenes asterius, Papilio zelicaon, Papilio zelicaon zelicaon
Native Range
- USA: Alaska, Arizona, California, Colorado, Connecticut, Delaware, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oregon, Pennsylvania, Rhode I., South Dakota, Tennessee, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming
- CAN: Alberta, British Columbia, Newfoundland, Manitoba, New Brunswick, Newfoundland, Northwest Territorie, Nova Scotia, Ontario, Prince Edward I., Québec, Saskatchewan, Yukon
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.