Page author: Regina Johnson
Phellinidium sulphurascens
laminated root rot
WTU specimens
Other herbaria
WTU images

Distribution: Range of Pseudotsuga, Tsuga and Abies. Northern coniferous forests.

Habitat: Northern coniferous forests.

Substrate: Conifer wood.

Conservation Status: Not of concern

Description:
Identification Notes:

Resupinate annual polypore with very small round pores. Pore surface brown, with a lighter brown margin, flesh yellowish brown, single tube layer pale grayish brown. On roots, root collars, and butts of trees, sometimes extending up the trunk from the root collar, especially on fallen logs in contact with soil. Similar P. weirii is perennial thus has more than one tube layer, occurs primarily on Thuja plicata and on second-growth Pseudotsuga menziesii, and causes a butt rot rather than a root rot which leads to the trunk breaking above the ground level, where P. sulphurascens victims blow over with a diminished root ball intact.

Accepted Name:
Phellinidium sulphurascens (Pilát) Y.C. Dai

Synonyms & Misapplications:
Coniferiporia sulphurascens (Pilát) L.W. Zhou & Y.C. Dai [MycoBank]
Additional Resources:

PNW Herbaria: Specimen records of Phellinidium sulphurascens in the Consortium of Pacific Northwest Herbaria database.

CalPhotos: Phellinidium sulphurascens photos.

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