Hairy Knotweed vs Spotted ladysthumb

Persicaria attenuata compared with Persicaria maculosa

Taxonomic Classification

Rank	Hairy Knotweed	Spotted ladysthumb
Kingdom same	Plantae (plantas)	Plantae (plantas)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order same	Caryophyllales (Caryophyllales)	Caryophyllales (Caryophyllales)
Family same	Polygonaceae	Polygonaceae
Genus same	Persicaria	Persicaria
Species	Persicaria attenuata	Persicaria maculosa

Evolutionary Relationship

Hairy Knotweed and Spotted ladysthumb share a common ancestor at the Genus level: Persicaria.

Conservation Status

Hairy Knotweed

LC — Least Concern

Spotted ladysthumb

LC — Least Concern

Physical Characteristics

Attribute	Hairy Knotweed	Spotted ladysthumb
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Hairy Knotweed

Habitat

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

Range

Found in South Africa.

Spotted ladysthumb

Habitat

Inhabits tropical and subtropical moist broadleaf forests and mangrove forests and coastal wetlands within the Indomalayan biogeographic realm.

Range

Widely distributed across Asia (Bangladesh, Taiwan), Europe (10 countries), North America (Canada, Mexico, United States), Oceania and the Pacific (Australia), and South America (4 countries).