[Knotweeds: The Genus Polygonum in the Cascade Mountains of Oregon and Washington]

Kellogg's Knotweed

Polygonum polygaloides ssp. kellogii

Synonyms: Polygonum kelloggii, Polygonum minutissimum, Polygonum unifolium

Kellogg's Knotweed: Polygonum polygaloides ssp. kellogii (Synonyms: Polygonum kelloggii, Polygonum minutissimum, Polygonum unifolium)

A close-up of the flower and leaves of Kellogg's knotweed as seen at 4100' at the DNR rock quarry abreast the ridge that divides the Dairy and Cougar Creek drainages at the southeastern corner of Mt. Adams.........June 11, 2005. The other photos on this page were taken at the same location on the same date.

Kellogg's Knotweed: Polygonum polygaloides ssp. kellogii (Synonyms: Polygonum kelloggii, Polygonum minutissimum, Polygonum unifolium) - Kellogg's Knotweed: Polygonum polygaloides ssp. kellogii (Synonyms: Polygonum kelloggii, Polygonum minutissimum, Polygonum unifolium) - Kellogg's Knotweed: Polygonum polygaloides ssp. kellogii (Synonyms: Polygonum kelloggii, Polygonum minutissimum, Polygonum unifolium)

Kellogg's knotweed as seen at 4100' at the DNR rock quarry abreast the ridge that divides the Dairy and Cougar Creek drainages at the southeastern corner of Mt. Adams.........June 11, 2005.

Kellogg's Knotweed: Polygonum polygaloides ssp. kellogii (Synonyms: Polygonum kelloggii, Polygonum minutissimum, Polygonum unifolium) - Kellogg's Knotweed: Polygonum polygaloides ssp. kellogii (Synonyms: Polygonum kelloggii, Polygonum minutissimum, Polygonum unifolium)

Kellogg's knotweed observed along the Pacific Crest Trail between Soda Mountain and Hobart Bluff, southern Jackson County, OR.....May 28, 2021.

Kellogg's Knotweed: Polygonum polygaloides ssp. kellogii (Synonyms: Polygonum kelloggii, Polygonum minutissimum, Polygonum unifolium)

Kellogg's knotweed observed in a grassy bald along the Cedar Creek Trail #457 about 4 miles east of Fifteenmile Creek Campground, Mt Hood National Forest......June 27, 2023.
Paul Slichter