When: 2014-10-28

Collection location: Sportsman State Park, Yakima, Yakima Co., Washington, USA [Click for map]

Who: Drew Henderson (Hendre17)

No specimen available

Exploding through asphalt on the trailside near park entrance. Very large, foul smelling mature specimen.

Two fruit bodies found within feet of each other- final images shows the packed, golden coated spore bearing structure on younger specimen.

Spores: chocolate brown- like cocoa powder.

Trees in canopy- black cottonwood, honey locust and maple.

Elevation: 1500ft.

Temp: low 50’s.

Species Lists


4th image showing chocolate colored spores.
4th image showing chocolate colored spores.
4th image showing chocolate colored spores.
4th image showing chocolate colored spores.

Proposed Names

75% (2)
Recognized by sight
5% (2)
Recognized by sight

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= Observer’s choice
= Current consensus


Add Comment
By: Daniel B. Wheeler (Tuberale)
2015-11-11 18:42:42 CST (-0600)

is one of the 35 known host species of Pisolithus arhizus.

No oaks or pine…
By: Byrain
2015-11-10 23:49:55 CST (-0600)

Potential hosts are listed as. “black cottonwood, honey locust and maple.” This is probably not the “P. arrhizus group”.

Thanks Daniel!
By: Drew Henderson (Hendre17)
2014-10-31 14:19:48 CDT (-0500)

They are pretty massive! I was walking by my usual Hemipholiota populnea spot and thought a huge rusty pipe had somehow been revealed from beneath the soil from all the rainfall we’ve had here lately-unusual for Yakima, WA. I would say they were approx. 8-10 inches tall and like you said, 4 or so inches across.

I have only seen this species once before but it was much older and less defined.

I am hoping maybe this Spring we can get together for a Morel hunt either down South in Oregon or up here off of highway 12.

Let me know how the truffles are doing down your way too when you get a chance ;)



Impressive, Drew.
By: Daniel B. Wheeler (Tuberale)
2014-10-31 12:46:32 CDT (-0500)

How large were these? I can see by your hand in some of the photos that the top was at least 4 inches across.