Butter Cap vs

Rhodocollybia butyracea compared with Rhodocollybia prolixa

Key Differences

• Butter Cap is Least Concern while is Vulnerable.

Taxonomic Classification

Rank	Butter Cap
Kingdom same	Fungi (菌界)	Fungi (菌界)
Phylum same	Basidiomycota (担子菌門)	Basidiomycota (担子菌門)
Class same	Agaricomycetes (真正担子菌綱)	Agaricomycetes (真正担子菌綱)
Order same	Agaricales (ハラタケ目)	Agaricales (ハラタケ目)
Family same	Omphalotaceae	Omphalotaceae
Genus same	Rhodocollybia	Rhodocollybia
Species	Rhodocollybia butyracea	Rhodocollybia prolixa

Evolutionary Relationship

Butter Cap and share a common ancestor at the Genus level: Rhodocollybia.

Conservation Status

Butter Cap

LC — Least Concern

VU — Vulnerable

Physical Characteristics

Attribute	Butter Cap
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Butter Cap

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), and North America (United States).

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United States. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Butter Cap

The Butter Cap (Rhodocollybia butyracea) is a species in the genus Rhodocollybia. It is currently classified as Least Concern on the IUCN Red List. Typically found in forest floors, decomposing wood, and soil ecosystems.

Rhodocollybia prolixa は淡褐色の傘と長い繊維質の柄を持つ腐生性キノコで、温帯ヨーロッパの森林内の枯葉層や木質残骸上に生育する。森林床の有機物分解に貢献する。脆弱（VU）に分類されているこの種は、生息地の喪失と有機落葉の堆積を減らす林業管理の変化によって脅かされている。

Shared Countries

Both species can be found in 5 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States