How to identify Yellow Patches

To correctly identify Yellow Patches (Amanita flavoconia), check each of these features in order. Misidentification is the most common cause of mushroom poisoning, so cross-reference multiple sources.

Step-by-step identification

1. 1

   Cap

   Shape, color, surface texture, and diameter.

   The cap is typically 3-10 cm in diameter, convex to flattened, and bright yellow to orange. It often has white to yellowish patches (remnants of the universal veil).

2. 2

   Gills

   Attachment to stem, color, and spacing.

   The gills are free, crowded, and white to pale yellow.

3. 3

   Stem

   Length, shape, surface, and any ring.

   The stem is 5-12 cm long and 1-2 cm thick, white to pale yellow, and has a ring (annulus) and a volva at the base.

4. 4

   Flesh

   Color, texture, and bruising reaction.

   The flesh is white and does not change color when bruised.

5. 5

   Fruiting body

   Overall growth pattern.

   The fruiting body of Amanita flavoconia is a mushroom with a cap, gills, and a stem.

6. 6

   Habitat

   Where it grows and on what substrate.

   Amanita flavoconia is found in deciduous and coniferous forests, often near birch and pine trees.

Key Facts

Cap surfaces

Viscid when moist, with white to yellowish patches

Growth Form

Solitary or scattered

Spore Print

White

Body color

Yellow to orange cap, white stem and gills

Odor

Not distinctive

Flesh bruises

Does not bruise

Height

5-12 cm

Cap Diameter

3-10 cm

Fruit body characteristics

• Gill attachment: Free
• Stem shape: Cylindrical
• Stem surface: Smooth to slightly fibrillose
• Ring: Present, membranous
• Stem cross-section: Solid

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