How to identify Bulbous Amanita

To correctly identify Bulbous Amanita (Amanita bulbosa), 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.

   Brown to grayish-brown, smooth, convex to flattened.

2. 2

   Gills

   Attachment to stem, color, and spacing.

   White, crowded, free from the stem.

3. 3

   Stem

   Length, shape, surface, and any ring.

   White, smooth, lacking a ring, bulbous base.

4. 4

   Flesh

   Color, texture, and bruising reaction.

   White, unchanging when cut.

5. 5

   Fruiting body

   Overall growth pattern.

   Medium to large size.

6. 6

   Habitat

   Where it grows and on what substrate.

   Deciduous and coniferous forests, often near oak or pine trees.

Key Facts

Cap surfaces

Smooth

Growth Form

Solitary or scattered

Spore Print

White

Body color

White stem, brown cap

Odor

Mild or unpleasant

Flesh bruises

Does not bruise

Height

8-15 cm

Cap Diameter

5-10 cm

Fruit body characteristics

• Gill attachment: Free
• Stem shape: Cylindrical, tapering upwards
• Stem surface: Smooth
• Ring: Absent
• Stem cross-section: Solid

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