Observation 25171: Agaricus L.

When: 2009-06-27

Collection location: Ha Ha Tonka State Park, Missouri, USA [Click for map]

Who: MOFunGuy (jrapp)

No specimen available

Found this at Ha Ha Tonka MOMS Foray in Missouri Ozarks mixed hardwoods. It is 3 1/2 – 4" tall, cap is 2 – 2 1/2" across. It looked like an Amanita but no bulb and gills mature dark brown. This one is not described many places but is in Mushroom Expert.

Species Lists


Proposed Names

76% (2)
Recognized by sight
Used references: Mushroom Expert, Jay Justice suggested ID
85% (1)
Recognized by sight

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= Observer’s choice
= Current consensus


Add Comment
Yellow Capped Agaricus
By: Whitney Hillis (whillis214 )
2020-05-24 22:19:04 PDT (-0700)

I found one today in my front yard in Southeast Missouri. Hard to find. Thanks so much.

Yellow Capped Agaricus
By: Patrick Harvey (pg_harvey)
2009-09-13 08:00:34 PDT (-0700)

Cool find … Jay told me what these were when I found one at Ha Ha Tonka.
I also did not find any color illustrations when I did a search, although I
did track down a small B&W engraving from an old article. Glad you got these