[Gumplants and Gumweeds: The Genus Grindelia West of the Cascade Mountains of Oregon and Washington]

Coastal Gumweed, Oregon Gumplant, Oregon Gumweed

Grindelia stricta var. stricta

Synonyms: Grindelia arenicola, Grindelia integrifolia var. macrophylla, Grindelia stricta ssp. stricta

Coastal Gumweed, Oregon Gumplant, Oregon Gumweed: Grindelia stricta var. stricta (Synonyms: Grindelia arenicola, Grindelia integrifolia var. macrophylla, Grindelia stricta ssp. stricta) - Coastal Gumweed, Oregon Gumplant, Oregon Gumweed: Grindelia stricta var. stricta (Synonyms: Grindelia arenicola, Grindelia integrifolia var. macrophylla, Grindelia stricta ssp. stricta)

Coastal gumweed as seen at left growing amongst pickleweed in a saltmarsh at Barview Jetty County Park at the mouth of Tillamook Bay, Oregon coast.........Augusts 26, 2009. Note: Some taxonomists have lumped this into Grindelia hirsutula. The photo at right shows coastal gumweed blooming in the saltmarsh at Sitka Sedge State Natural Area........August 19, 2018.

Close-up of the flower head of Coastal Gumweed, Oregon Gumplant, Oregon Gumweed: Grindelia stricta var. stricta (Synonyms: Grindelia arenicola, Grindelia integrifolia var. macrophylla, Grindelia stricta ssp. stricta) - Involucral bracts of Coastal Gumweed, Oregon Gumplant, Oregon Gumweed: Grindelia stricta var. stricta (Synonyms: Grindelia arenicola, Grindelia integrifolia var. macrophylla, Grindelia stricta ssp. stricta) - Involucral bracts of Coastal Gumweed, Oregon Gumplant, Oregon Gumweed: Grindelia stricta var. stricta (Synonyms: Grindelia arenicola, Grindelia integrifolia var. macrophylla, Grindelia stricta ssp. stricta)

Close-ups of the disk and ray flowers and involucral bracts of coastal gumweed at Barview Jetty County Park at the mouth of Tillamook Bay, Oregon coast.........Augusts 26, 2009.

Coastal Gumweed, Oregon Gumplant, Oregon Gumweed: Grindelia stricta var. stricta (Synonyms: Grindelia arenicola, Grindelia integrifolia var. macrophylla, Grindelia stricta ssp. stricta) - Coastal Gumweed, Oregon Gumplant, Oregon Gumweed: Grindelia stricta var. stricta (Synonyms: Grindelia arenicola, Grindelia integrifolia var. macrophylla, Grindelia stricta ssp. stricta) - Coastal Gumweed, Oregon Gumplant, Oregon Gumweed: Grindelia stricta var. stricta (Synonyms: Grindelia arenicola, Grindelia integrifolia var. macrophylla, Grindelia stricta ssp. stricta)

Coastal Gumweed, Oregon Gumplant, Oregon Gumweed: Grindelia stricta var. stricta (Synonyms: Grindelia arenicola, Grindelia integrifolia var. macrophylla, Grindelia stricta ssp. stricta) - Coastal Gumweed, Oregon Gumplant, Oregon Gumweed: Grindelia stricta var. stricta (Synonyms: Grindelia arenicola, Grindelia integrifolia var. macrophylla, Grindelia stricta ssp. stricta) - Coastal Gumweed, Oregon Gumplant, Oregon Gumweed: Grindelia stricta var. stricta (Synonyms: Grindelia arenicola, Grindelia integrifolia var. macrophylla, Grindelia stricta ssp. stricta)

What appears to be coastal gumweed as seen at the upper edge of mudflats on the east side of Bayocean Spit, northern Oregon coast..........August 25, 2012.

Coastal Gumweed, Oregon Gumplant, Oregon Gumweed: Grindelia stricta var. stricta (Synonyms: Grindelia arenicola, Grindelia integrifolia var. macrophylla, Grindelia stricta ssp. stricta) - Coastal Gumweed, Oregon Gumplant, Oregon Gumweed: Grindelia stricta var. stricta (Synonyms: Grindelia arenicola, Grindelia integrifolia var. macrophylla, Grindelia stricta ssp. stricta) - Coastal Gumweed, Oregon Gumplant, Oregon Gumweed: Grindelia stricta var. stricta (Synonyms: Grindelia arenicola, Grindelia integrifolia var. macrophylla, Grindelia stricta ssp. stricta)

Coastal gumweed as seen (left and center) at Barview Jetty County Park at the mouth of Tillamook Bay, Oregon coast........Augusts 26, 2009. The photo at right shows coastal gumweed in bloom in bayside wetlands at Sitka Sedge State Natural Area, Oregon coast......July 28, 2022.

Paul Slichter