[Cow Parsnips and Hogweeds: The Genus Heracleum West of the Cascade Mountains of Oregon and Washington]
American Cow-parsnip, American Hogweed, Common Cow-parsnip, Cow Parsnip
Heracleum maximum
Synonyms: Heracleum douglasii, Heracleum lanatum, Heracleum sphondylium, Heracleum sphondylium var. lanatum
![American Cow-parsnip, American Hogweed, Common Cow-parsnip, Cow Parsnip: Heracleum maximum (Synonyms: Heracleum douglasii, Heracleum lanatum, Heracleum sphondylium, Heracleum sphondylium var. lanatum)](maximum/maximum4c.jpg)
Cow parsnip as seen atop Saddle Mountain in the Coast Range of northwestern Oregon..........June 14, 2009.
- ![Inflorescence of American Cow-parsnip, American Hogweed, Common Cow-parsnip, Cow Parsnip: Heracleum maximum (Synonyms: Heracleum douglasii, Heracleum lanatum, Heracleum sphondylium, Heracleum sphondylium var. lanatum)](maximum/maximum4b.jpg)
Cow parsnip as seen atop Saddle Mountain in the Coast Range of northwestern Oregon...............June 14, 2009.
![American Cow-parsnip, American Hogweed, Common Cow-parsnip, Cow Parsnip: Heracleum maximum (Synonyms: Heracleum douglasii, Heracleum lanatum, Heracleum sphondylium, Heracleum sphondylium var. lanatum)](maximum/lanatum43a.jpg)
Cow parsnip blooming high on the connector trail on the south side of Klahhane Ridge, Olympic National Park.........July 27, 2014.
Paul Slichter