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Persicaria hydropiperoides

7 photos found

swamp smartweed Persicaria hydropiperoides Hamilton Creek, Skamania County, Washington (9/19/24)

swamp smartweed Persicaria hydropiperoides (Polygonum hydropiperoides) Ice House Lake, Skamania County, Washington (9/19/24)

swamp smartweed Persicaria hydropiperoides Chinook Landing Marine Park, Multnomah County, Oregon (9/19/24)

swamp smartweed (water-pepper) Persicaria hydropiperoides (Polygonum hydropiperoides) Rooster Rock State Park, Multnomah County, Oregon (9/12/23)

swamp smartweed (water-pepper) Persicaria hydropiperoides Rooster Rock State Park, Multnomah County, Oregon (10/1/22)

water pepper (swamp smartweed) Persicaria hydropiperoides (Polygonum hydropiperoides) Rooster Rock State Park, Multnomah County, Oregon (9/7/21) There's a chance this is actually Persicaria hydropiper, which is not native.

water pepper (swamp smartweed) Persicaria hydropiperoides (Polygonum hydropiperoides) Scappoose Bay, Columbia County, Oregon (8/27/21) There's a chance this is actually Persicaria hydropiper, which is not native.