American Water Plantain vs

Alisma subcordatum compared with Usnea cornuta

Key Differences

• American Water Plantain is Least Concern while is Near Threatened.

Taxonomic Classification

Rank	American Water Plantain
Kingdom	Plantae (Plants)	Fungi (Fungi)
Phylum	Magnoliophyta (Flowering Plants)	Ascomycota (Sac Fungi)
Class	Liliopsida (Monocots)	Lecanoromycetes (Lecanoromycetes)
Order	Alismatales (Alismatales)	Lecanorales (Lecanorales)
Family	Alismataceae	Parmeliaceae
Genus	Alisma	Usnea
Species	Alisma subcordatum	Usnea cornuta

Conservation Status

American Water Plantain

LC — Least Concern

NT — Near Threatened

Physical Characteristics

Attribute	American Water Plantain
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

American Water Plantain

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Range

Distributed across Canada and United States.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway, Portugal, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

American Water Plantain

The American Water Plantain (Alisma subcordatum) is a species in the genus Alisma. It is currently classified as Least Concern on the IUCN Red List. Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Usnea cornuta is a fruticose lichen in the family Parmeliaceae, assessed as Near Threatened (NT). It forms shrubby, branching thalli that hang from tree branches and twigs, typically in humid forest environments. Like all Usnea species, it is highly sensitive to air pollution, particularly sulfur dioxide, making it a useful bioindicator of air quality.