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Mushroom ID

Horse Mushroom

Agaricus arvensis

HIGH RISK LOOKALIKES

High Risk of Misidentification: Potential Agaricus Species

Horse Mushroom - Image 1
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Alle Bilder (4)

Hauptmerkmale

  • Free
  • crowded
  • dark chocolate brown gills (mature)
  • Robust
  • pale white to tan cap surface
  • Prominent superior annulus (ring) on the stem
  • Stem base attached to soil
  • suggesting terrestrial growth
  • Gills do not attach to the stem
Farbe:

White to pale tan cap; Dark brown gills; White stem

Geruch:

Unknown (Crucial diagnostic feature is missing)

Wuchsform:

Single

Umgebung:

Soil

Lebensraum & Verbreitung

Lebensraum:

Likely grassy area, lawn, or field edge

Verbreitung:

Widespread across North America, common in coastal British Columbia.

Saisonalität:

Summer to Autumn

Zur sicheren Bestimmung
  • Odor (almond/anise vs. phenolic) is the primary diagnostic feature for Agaricus species and is unknown
  • Staining reaction upon bruising the stem base is unknown

Wirtschaftlicher Wert

Marktnachfrage:

Moderate - Edible species are popular but require careful identification.

Preisspanne:

N/A

Kommerzielle Nutzung:

None - Wild harvested only; high risk of confusion with toxic species prevents commercialization.

Ähnliche Arten

Yellow-staining Mushroom

Agaricus xanthodermus

TOXIC - severe digestive upset
Hauptunterschiede:
  • Stains bright chrome yellow instantly when bruised, especially at the stem base
  • Strong, unpleasant phenolic or carbolic acid odor

Meadow Mushroom

Agaricus campestris

LOW_RISK - Edible
Hauptunterschiede:
  • Typically smaller and less robust structure
  • Ring often less prominent or fragile
  • Gills turn pink before turning dark brown

Empfohlene Handlung

Do not consume. Immediate testing for odor and stem base staining is required to rule out the toxic Yellow-staining Mushroom.