Bartram Shadbush vs Ray's Knotgrass

Amelanchier bartramiana compared with Polygonum oxyspermum

Key Differences

• Bartram Shadbush is Least Concern while Ray's Knotgrass is Endangered.

Taxonomic Classification

Rank	Bartram Shadbush	Ray's Knotgrass
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order	Rosales (Roses & Allies)	Caryophyllales (Caryophyllales)
Family	Rosaceae (Rose Family)	Polygonaceae
Genus	Amelanchier	Polygonum
Species	Amelanchier bartramiana	Polygonum oxyspermum

Evolutionary Relationship

Bartram Shadbush and Ray's Knotgrass share a common ancestor at the Class level: Magnoliopsida. (Dicots)

Conservation Status

Bartram Shadbush

LC — Least Concern

Ray's Knotgrass

EN — Endangered

Physical Characteristics

Attribute	Bartram Shadbush	Ray's Knotgrass
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.

Ray's Knotgrass

Habitat

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

Range

Distributed across Denmark, Norway, and Sweden. Currently classified as Endangered 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.