Described from Washington, USA as Boletinus punctatipes (Snell & Dick 1941). Singer (1945) stated this species was a Suillus, but did not officially transfer it; Smith & Thiers (1964) made the transfer to Suillus.
Suillus punctatipes is a common Suillus in the Pacific Northwest, and rare to occasional in the California mountains.
Population is widespread in multiple forest types, and no sign of decline has been observed. I recommend listing as Least Concern (LC).
From scattered sites in the Sierra Nevada and Siskiyou mountains in California and southwest Oregon, becoming more widespread in the Pacific Northwest, where it occurs from coast through the Cascades, and with scattered sites into the northern Rocky Mountains to the east, and to southeast Alaska in the north.
Population is widespread and appears stable; it can be locally abundant in the Pacific Northwest. No decline has been noted.
Population Trend: Stable
Ectomycorrhizal with Pinaceae in young to mature forests; especially Douglas-fir (Pseudotsuga menziesii), and with fir (Abies spp.) and hemlock (Tsuga spp.) in higher elevations. Fruiting in late summer and fall.
No specific threats have been identified with regards to this species.
No specific conservation actions is needed with regards to this species.
No specific research is needed with regards to this species.
This species is edible, but only occasionally collected for food.
Singer, R. 1945. The Boletineae of Florida with notes on extralimital species II. The Boletaceae (Gyroporoideae). Farlowia 2(2): 223–303.
Smith, A.H. and Thiers, H.D. 1964. A Contribution Toward A Monograph of North American Species of Suillus. University of Michigan Press. Ann Arbor, MI. 116 p.
Snell, W.H. and Dick, E.A. 1941. Notes on Boletes VI. Mycologia 33: 23-37.