Observation 137657: Agaricus bitorquis (Quél.) Sacc.

When: 2013-06-18

Collection location: Grasslands National Park, Saskatchewan, Canada [Click for map]

49.0804° -107.2306° 900m

Who: Chris Hay (hayfield)

Specimen available


  • on road near junction of Walker and GNP land in West Block
  • upland prairie (road), dry for last few days (otherwise roads inaccessible)
  • three (and a half) found exploding from sides of gravel road (emerging from road)
  • large (fist to open hand sized)
  • strong Agaricus type smell
  • dark gills and thick stalk

Species Lists


found with part of cap missing (just opposite other two/ other side edge of road) (other small piece below, from another one)
emerging from roadside
plit cap surface like bread (from few days of dry weather recently)
pieces of road on top

Proposed Names

56% (1)
Eye3 Eyes3
Recognized by sight
Used references: Mushrooms of Ontario and Eastern Canada (Barron 1999)

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Created: 2013-06-26 05:17:07 CEST (+0200)
Last modified: 2013-06-26 05:17:14 CEST (+0200)
Viewed: 12 times, last viewed: 2017-06-16 10:59:16 CEST (+0200)
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