American Tearthumb vs Denseflower knotweed

Persicaria sagittata compared with Persicaria glabra

Taxonomic Classification

Rank	American Tearthumb	Denseflower knotweed
Kingdom same	Plantae (Pflanzen)	Plantae (Pflanzen)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order same	Caryophyllales (Nelkenartige)	Caryophyllales (Nelkenartige)
Family same	Polygonaceae	Polygonaceae
Genus same	Persicaria	Persicaria
Species	Persicaria sagittata	Persicaria glabra

Evolutionary Relationship

American Tearthumb and Denseflower knotweed share a common ancestor at the Genus level: Persicaria.

Conservation Status

American Tearthumb

LC — Least Concern

Denseflower knotweed

LC — Least Concern

Physical Characteristics

Attribute	American Tearthumb	Denseflower knotweed
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

American Tearthumb

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and North America (Canada, United States).

Denseflower knotweed

Habitat

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

Range

Distributed across Belgium, Cuba, Taiwan, and United States.

American Tearthumb

The American Tearthumb (Persicaria sagittata) is a species in the genus Persicaria. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Shared Countries

Both species can be found in 3 countries:

🇧🇪 Belgium 🇹🇼 Taiwan 🇺🇸 United States