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How to Identify Sulfur Tuft

Hypholoma fasciculare
POISONOUS — DO NOT CONSUME Season // Aug-Dec Family // Strophariaceae

Description

Hypholoma fasciculare is a small to medium-sized mushroom characterized by its yellow-green to olive-brown cap that is often sticky when wet. The gills are closely spaced and yellow to greenish, and the stem is slender and often has a bulbous base.

Key Identification Features

Field marks recorded for this species. Work through all of them, not just one:

  • Cap: 2-6 cm wide, convex to bell-shaped, sticky when wet
  • Gills: Close, yellow to greenish, free from the stem
  • Stem: Slender, 4-10 cm tall, often swollen at the base
  • Spore print: Purple-brown
  • Growth habit: Grows in dense clusters

Specimen Profile

FamilyStrophariaceae
GenusHypholoma
EdibilityPoisonous — do not consume
Toxicitymedium
SeasonAug-Dec
HabitatTypically grows in clusters on decaying wood, especially conifers, and in forested areas.
RegionFound in temperate regions worldwide, including North America, Europe, and parts of Asia.

Habitat & Distribution

Habitat: Typically grows in clusters on decaying wood, especially conifers, and in forested areas.

Region: Found in temperate regions worldwide, including North America, Europe, and parts of Asia.

Seasonality

Fruits from late summer to early winter.

Typical months: Aug-Dec

Common Lookalikes

Always verify identification to avoid these similar species. The differentiator is the point — learn the one or two tells that separate them:

Hypholoma capnoides (inedible)

HOW TO TELL APART

distinguished by its darker cap and less sticky surface

Pholiota squarrosa (edible)

HOW TO TELL APART

has a scaly cap and grows on wood but is generally larger

Gymnopilus underwoodii (unknown)

HOW TO TELL APART

has a more pronounced orange-brown color and a different spore print

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Disclaimer: This guide is for educational purposes only. Never consume a wild mushroom unless you are 100% certain of its identification.