Bartram Shadbush vs Chalk Screw-moss

Amelanchier bartramiana compared with Tortula vahliana

Key Differences

• Bartram Shadbush is Least Concern while Chalk Screw-moss is Vulnerable.

Taxonomic Classification

Rank	Bartram Shadbush	Chalk Screw-moss
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum	Magnoliophyta (Flowering Plants)	Bryophyta
Class	Magnoliopsida (Dicots)	Bryopsida (Bryopsida)
Order	Rosales (Roses & Allies)	Pottiales (Pottiales)
Family	Rosaceae (Rose Family)	Pottiaceae
Genus	Amelanchier	Tortula
Species	Amelanchier bartramiana	Tortula vahliana

Evolutionary Relationship

Bartram Shadbush and Chalk Screw-moss share a common ancestor at the Kingdom level: Plantae. (Plants)

Conservation Status

Bartram Shadbush

LC — Least Concern

Chalk Screw-moss

VU — Vulnerable

Physical Characteristics

Attribute	Bartram Shadbush	Chalk Screw-moss
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bartram Shadbush

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Distributed across Canada, France, and United States.

Chalk Screw-moss

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

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

Bartram Shadbush

The Bartram Shadbush (Amelanchier bartramiana) is a species in the genus Amelanchier. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Chalk Screw-moss

The Chalk Screw-moss (Tortula vahliana) is a species in the genus Tortula. It is currently classified as Vulnerable on the IUCN Red List. Native to Europe, inhabiting ecosystems characteristic of the region.