Dog Screw-moss vs truncated screw moss

Tortula canescens compared with Tortula truncata

Key Differences

• Dog Screw-moss is Vulnerable while truncated screw moss is Least Concern.

Taxonomic Classification

Rank	Dog Screw-moss	truncated screw moss
Kingdom same	Plantae (plantas)	Plantae (plantas)
Phylum same	Bryophyta	Bryophyta
Class same	Bryopsida (Bryopsida)	Bryopsida (Bryopsida)
Order same	Pottiales (Pottiales)	Pottiales (Pottiales)
Family same	Pottiaceae	Pottiaceae
Genus same	Tortula	Tortula
Species	Tortula canescens	Tortula truncata

Evolutionary Relationship

Dog Screw-moss and truncated screw moss share a common ancestor at the Genus level: Tortula.

Conservation Status

Dog Screw-moss

VU — Vulnerable

truncated screw moss

LC — Least Concern

Physical Characteristics

Attribute	Dog Screw-moss	truncated screw moss
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Dog Screw-moss

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Luxembourg, Norway, and Portugal. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

truncated screw moss

Habitat

Native to Asia and Europe and North America, inhabiting ecosystems characteristic of the region.

Range

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

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇵🇹 Portugal