Button Sedge vs Long-tailed Sylph

Carex bullata compared with Aglaiocercus kingii

Key Differences

• Button Sedge is Data Deficient while Long-tailed Sylph is Least Concern.

Taxonomic Classification

Rank	Button Sedge	Long-tailed Sylph
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Liliopsida (Monocots)	Aves (Birds)
Order	Poales (Grasses)	Apodiformes (Apodiformes)
Family	Cyperaceae	Trochilidae
Genus	Carex	Aglaiocercus
Species	Carex bullata	Aglaiocercus kingii

Conservation Status

Button Sedge

DD — Data Deficient

Long-tailed Sylph

LC — Least Concern

Physical Characteristics

Attribute	Button Sedge	Long-tailed Sylph
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.

Long-tailed Sylph

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

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.

Long-tailed Sylph

One of the most strikingly ornamented hummingbirds, male long-tailed sylphs have iridescent green plumage and dramatically elongated, ribbon-like outer tail feathers reaching up to 22 cm — over three times the body length. Found in Andean cloud forests of Colombia and Venezuela, they inhabit humid montane forest between 1,400–2,800 meters elevation. Males perform elaborate display flights to attract females. Their extravagant tails are a classic example of sexual selection via female preference.