Button Sedge vs Chungan Sucker Frog

Carex bullata compared with Amolops chunganensis

Key Differences

• Button Sedge is Data Deficient while Chungan Sucker Frog is Least Concern.

Taxonomic Classification

Rank	Button Sedge	Chungan Sucker Frog
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Liliopsida (Monocots)	Amphibia (Amphibians)
Order	Poales (Grasses)	Anura (Frogs & Toads)
Family	Cyperaceae	Ranidae
Genus	Carex	Amolops
Species	Carex bullata	Amolops chunganensis

Conservation Status

Button Sedge

DD — Data Deficient

Chungan Sucker Frog

LC — Least Concern

Physical Characteristics

Attribute	Button Sedge	Chungan Sucker Frog
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Button Sedge

Habitat

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

Range

Distributed across Canada and United States.

Chungan Sucker Frog

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Button Sedge

The Button Sedge (Carex bullata) is a species in the genus Carex. It is currently classified as Data Deficient on the IUCN Red List. Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Chungan Sucker Frog

The Chungan Sucker Frog (Amolops chunganensis) is a Least Concern torrent frog in the family Ranidae, endemic to central China, particularly associated with the mountains of Chongqing (formerly Chungan County, from which the species name derives) and surrounding areas. The genus Amolops, commonly known as torrent frogs or cascade frogs, is adapted for life in and around fast-flowing mountain streams, with expanded toe pads and sucker-like discs that allow clinging to wet, smooth rock surfaces in high-velocity water. Breeding occurs in stream environments, where males call from boulders at the stream edge and larvae develop in oxygenated torrent pools with specialized mouthparts for adhering to rock substrates. A. chunganensis inhabits subtropical and montane forests at elevations ranging from low to mid altitudes in Sichuan and Chongqing. The IUCN assesses this species as Least Concern, reflecting a relatively wide distribution within suitable stream habitats across central China. However, it faces ongoing pressure from water quality degradation, dam construction and stream modification, deforestation, and pollution from agricultural and urban runoff. Amolops frogs are sensitive to siltation and chemical contamination of breeding streams.