• Proposed
  • 2Under Assessment
  • 3Preliminary Assessed
  • 4Assessed
  • 5Published

Lactarius pallescens Hesler & A.H. Sm.

Go to another Suggested Species...

Scientific name
Lactarius pallescens
Hesler & A.H. Sm.
Common names
IUCN Specialist Group
Mushroom, Bracket and Puffball
Assessment status
Proposed by
Noah Siegel
Comments etc.
Noah Siegel

Assessment Notes

Taxonomic notes

Described based on an Idaho, USA Type collection (Hesler & Smith 1979).

The Alaskan Lactarius pallescens var. palmerensis (Hesler & Smith 1979) is likely a distinct species, and is not included in this assessment.

Reports on Mushroom Observer and Mycoportal (2021) from eastern North America appear to be misidentifications.

Why suggested for a Global Red List Assessment?

Lactarius pallescens is a locally common milk cap, occurring over a widespread area, with both conifers and hardwoods in western North America.

Population is widespread, and no decline has been observed. We recommend it should be listed as Least Concern (LC)

Geographic range

Northern California in coastal forests, throughout the Pacific Northwest in coastal, Coast Range and Cascade forests, east into the Rocky Mountains north into central British Columbia, Canada, possibly into Alaska.

Population and Trends

Population is widespread, and locally quite common; appears to be stable; no decline has been noted.

Population Trend: Stable

Habitat and Ecology

Ectomycorrhizal with a wide number of both conifers and hardwoods. in the southern portions of its range has been found with oaks (Quercus spp), but more often with conifers, especially with hemlock (Tsuga spp.) and fir (Abies spp.). Locally common, fruiting in fall.

Temperate Forest


No specific threats have been identified with regards to this species.

Conservation Actions

No specific conservation actions is needed with regards to this species.

Research needed

Investigate ‘fringe’ populations (ie . California oak associated collections, Alaska collections) with modern taxonomic tools.

Use and Trade

None known.


Hesler, L.R. and Smith, A.H. 1979. North American Species of Lactarius. University of Michigan Press: Ann Arbor, MI. 841 p.

iNaturalist. 2021. Available at: http://www.inaturalist.org

Methven, A.S. 1997. The Agaricales (Gilled Fungi) of California. 10. Russulaceae II. Lactarius. Mad River Press: Eureka, CA. 79 p.

Mushroom Observer. 2021. http://www.mushroomobserver.org

MyCoPortal. 2021. http://mycoportal.org/portal/index.php. Accessed on January 11.

Siegel, N. and Schwarz, C. 2016. Mushrooms of the Redwood Coast. Ten Speed Press: Berkeley, CA. 601 p.

Country occurrence

Regional Population and Trends

Country Trend Redlisted