Formosan rock macaque vs Ray's Knotgrass

Macaca cyclopis compared with Polygonum oxyspermum

Key Differences

• Formosan rock macaque is Least Concern while Ray's Knotgrass is Endangered.

Taxonomic Classification

Rank	Formosan rock macaque	Ray's Knotgrass
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Mammalia (Mammals)	Magnoliopsida (Dicots)
Order	Primates (Primates)	Caryophyllales (Caryophyllales)
Family	Cercopithecidae (Old World Monkeys)	Polygonaceae
Genus	Macaca	Polygonum
Species	Macaca cyclopis	Polygonum oxyspermum

Conservation Status

Formosan rock macaque

LC — Least Concern

Ray's Knotgrass

EN — Endangered

Physical Characteristics

Attribute	Formosan rock macaque	Ray's Knotgrass
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Formosan rock macaque

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Japan and Taiwan.

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.