Gomphidius oregonensis was described from Oregon, USA (Peck 1898).
Gomphidius oregonensis is a very common species, especially in young Douglas-fir forests of the Pacific Northwest. No decline has been recorded; it should be listed as Least Concern (LC).
From Monterey County, California, USA north through coastal, coast range and Sierra Nevada forests; and from coast to Cascade Range in the Pacific Northwest into southern British Columbia, with scattered reports in eastern Washington and Oregon (however, these reports should be scrutinized, as they may represent other species).
Population is widespread, and it is a very common species, especially in young Douglas-fir forests of the Pacific Northwest. No decline has been recorded, and populations may have even increased with the the current forest management practices in the Pacific Northwest.
Population Trend: Stable
Gomphidius oregonensis has an obligatory relationship; likely as a parasite on, Suillus caerulescens, and possibly S. ponderosus, which in turn are ectomycorrhizal with Douglas-fir (Pseudotsuga menziesii). It is especially common in young to mid seral stands of Douglas-fir in the Pacific Northwest, fruiting in fall.
No specific threats have been identified with regards to this species.
No specific conservation actions have been identified with regards to this species.
No specific research is needed with regards to this species.
This, and other Gomphidius are edible, but are not highly regarded, and thus, rarely collected for food.
Miller Jr., O.K. 2003. The Gomphidiaceae revisited: a worldwide perspective. Mycologia 95(1): 176-183.
Peck, C.H. 1898. New species of fungi. Bull. Torrey bot. Club 25(6): 321-328.
Siegel, N. & Schwarz, C. 2016. Mushrooms of the Redwood Coast. Ten Speed Press: Berkeley, CA. 601 p.