How to identify Poplar scaber stalk

To correctly identify Poplar scaber stalk (Leccinum albostipitatum), 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.

   5–15 cm (2–6 in) in diameter, convex to flattened, smooth to slightly wrinkled, pale tan to reddish-brown

2. 2

   Gills

   Attachment to stem, color, and spacing.

   Pores are small and round, white to grayish, stain brownish when bruised

3. 3

   Stem

   Length, shape, surface, and any ring.

   8–15 cm (3–6 in) long and 1–3 cm (0.4–1.2 in) thick, white to pale gray, covered with dark brown to black scabers

4. 4

   Flesh

   Color, texture, and bruising reaction.

   White, turns pinkish-gray when cut or bruised

5. 5

   Fruiting body

   Overall growth pattern.

   Bolete

6. 6

   Habitat

   Where it grows and on what substrate.

   Mycorrhizal association with poplar trees

Key Facts

Cap surfaces

Smooth to slightly wrinkled

Growth Form

Solitary to scattered

Spore Print

Brown

Body color

White to pale gray

Odor

Mild, not distinctive

Flesh bruises

Turns pinkish-gray

Height

8–15 cm

Cap Diameter

5–15 cm

Fruit body characteristics

• Gill attachment: Adnate to decurrent
• Stem shape: Cylindrical to clavate
• Stem surface: Covered with dark brown to black scabers
• Ring: Absent
• Stem cross-section: Solid

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