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 (真菌界)	Fungi (真菌界)
Phylum same	Basidiomycota (担子菌门)	Basidiomycota (担子菌门)
Class same	Agaricomycetes (傘菌綱)	Agaricomycetes (傘菌綱)
Order same	Agaricales (伞菌目)	Agaricales (伞菌目)
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.

长柄油蘑（Rhodocollybia prolixa）是具有淡褐色菌盖和细长纤维状菌柄的腐生蘑菇，生长于温带欧洲森林中的腐叶层和木质残骸上，有助于林地有机质的分解。被列为易危（VU），受到生境丧失和减少有机落叶积累的林业管理变化的威胁。

Shared Countries

Both species can be found in 5 countries:

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