Cow Parsnips and Hogweeds: The Genus Heracleum in the Cascade Mountains of Oregon and Washington]

American Cow-parsnip, Common Cowparsnip, Common Cow-parsnip, Cow Parsnip

Heracleum maximum

Synonyms: Heracleum douglasii, Heracleum lanatum, Heracleum lanatum , Heracelum sphondylium ssp. montanum, Heracleum sphondylium var. lanatum, Pastinaca lanatum

American Cow-parsnip, Common Cowparsnip, Common Cow-parsnip, Cow Parsnip: Heracleum maximum (Synonyms: Heracleum douglasii, Heracleum lanatum, Heracleum lanatum , Heracelum sphondylium ssp. montanum, Heracleum sphondylium var. lanatum, Pastinaca lanatum) - American Cow-parsnip, Common Cowparsnip, Common Cow-parsnip, Cow Parsnip: Heracleum maximum (Synonyms: Heracleum douglasii, Heracleum lanatum, Heracleum lanatum , Heracelum sphondylium ssp. montanum, Heracleum sphondylium var. lanatum, Pastinaca lanatum)

Cow parsnip as seen at left on the steep, rocky Klickitat Trail #7 due east of Cispus Point, Gifford Pinchot National Forest........July 4, 2015. The photo at right shows cow parsnip blooming on the lower sections of the Cone Peak Trail #3408 (above Tombstone Meadows), Willamette National Forest......July17, 2023..

American Cow-parsnip, Common Cowparsnip, Common Cow-parsnip, Cow Parsnip: Heracleum maximum (Synonyms: Heracleum douglasii, Heracleum lanatum, Heracleum lanatum , Heracelum sphondylium ssp. montanum, Heracleum sphondylium var. lanatum, Pastinaca lanatum)

Cow parsnip as seen on vernally moist, south-facing slopes along the northern portion of the upper basin loop on the South Fork Tieton River Trail #1120, Goat Rocks Wilderness.......July 24, 2016. A well-worn user trail descends steeply from the ridge between Conrad Creek and South Fork Tieton River and joins the South Fork Tieton River Trail at this point.

American Cow-parsnip, American Hogweed, Cow Parsnip, Common Cow-parsnip: Heracleum maximum (Synonyms: Heracleum douglasii, Heracleum lanatum, Heracleum sphondylium ssp. montanum, Heracleum sphondylium var. lanatum, Pastinaca lanatum) - Umbel of American Cow-parsnip, American Hogweed, Cow Parsnip, Common Cow-parsnip: Heracleum maximum (Synonyms: Heracleum douglasii, Heracleum lanatum, Heracleum sphondylium ssp. montanum, Heracleum sphondylium var. lanatum, Pastinaca lanatum) - American Cow-parsnip, American Hogweed, Cow Parsnip, Common Cow-parsnip: Heracleum maximum (Synonyms: Heracleum douglasii, Heracleum lanatum, Heracleum sphondylium ssp. montanum, Heracleum sphondylium var. lanatum, Pastinaca lanatum)

Paul Slichter