Blue star vs Lesser Red-knotgrass

Amsonia orientalis compared with Polygonum arenarium

Key Differences

• Blue star is Critically Endangered while Lesser Red-knotgrass is Not Evaluated.

Taxonomic Classification

Rank	Blue star	Lesser Red-knotgrass
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order	Gentianales (Gentianales)	Caryophyllales (Caryophyllales)
Family	Apocynaceae	Polygonaceae
Genus	Amsonia	Polygonum
Species	Amsonia orientalis	Polygonum arenarium

Evolutionary Relationship

Blue star and Lesser Red-knotgrass share a common ancestor at the Class level: Magnoliopsida. (Dicots)

Conservation Status

Blue star

CR — Critically Endangered

Lesser Red-knotgrass

NE — Not Evaluated

Physical Characteristics

Attribute	Blue star	Lesser Red-knotgrass
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blue star

Habitat

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

Lesser Red-knotgrass

Habitat

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

Range

Found across Europe (11 countries) and North America (United States).

Blue star

The Blue star (Amsonia orientalis) is a species in the genus Amsonia. It is currently classified as Critically Endangered on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.