Public Description of Sparassis radicata Weir

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Name: Sparassis radicata Weir
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Description status: Unreviewed

Taxonomic Classification:

Domain: Eukarya
Kingdom: Fungi
Phylum: Basidiomycota
Class: Agaricomycetes
Order: Polyporales
Family: Sparassidaceae

General Description:

This species is distinguished by a central trunk from which all the folliations (flabellae) arise. The flabellae are azonate.


Type is from Priest River, Idaho.

Sparassis crispa seems limited to Europe, including western Russia, being replaced in eastern North America by S. americana and in western North America by S. americana f. arizonica in southeastern Arizona and S. radicata in the Pacific Northwest. The dominant species in Asia is S. latifolia.”2


Saprobic to parasitic, solitary August-December at the base of conifers.

Look Alikes:

See Petersen and Hughes2
S. spathulata has distinctly zoned flaballae. S. crispa lacks the central stalk. In S. crispa the flaballae arise from several elongate flattened branches.


1 Light, William, Mary Woehrel, Clarification of the Nomenclatural Confusion of the Genus
Sparassis [Polyporales: Sparassidaceae] in North America, Fungi Vol 2. No. 4 pp.10-16.

2 Petersen, Ron and Hughes, Karen (2014) Cauliflower Tales, McIlvainea 23 (13-15):…;

Description author: La Monte Henry Piggy Yarroll (Request Authorship Credit)
Description editors: Nathan Wilson, Joseph D. Cohen