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) - Umbel inflorescence of 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 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. The image at right shows the umbel inflorescence of cow parsnip as seen on the open Willow Ski Run along the Umbrella Falls Trail #667, Mount Hood National Forest......July 26, 2024.

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