Alpine Thread-Leaved Pondweed vs Long-tailed Sylph

Stuckenia filiformis compared with Aglaiocercus kingii

Taxonomic Classification

Rank	Alpine Thread-Leaved Pondweed	Long-tailed Sylph
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Liliopsida (Monocots)	Aves (Birds)
Order	Alismatales (Alismatales)	Apodiformes (Apodiformes)
Family	Potamogetonaceae	Trochilidae
Genus	Stuckenia	Aglaiocercus
Species	Stuckenia filiformis	Aglaiocercus kingii

Conservation Status

Alpine Thread-Leaved Pondweed

LC — Least Concern

Long-tailed Sylph

LC — Least Concern

Physical Characteristics

Attribute	Alpine Thread-Leaved Pondweed	Long-tailed Sylph
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Alpine Thread-Leaved Pondweed

Habitat

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

Range

Widely distributed across Europe (4 countries), North America (Canada, United States), and South America (Brazil).

Long-tailed Sylph

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Alpine Thread-Leaved Pondweed

The Alpine Thread-Leaved Pondweed (Stuckenia filiformis) is a species in the genus Stuckenia. It is currently classified as Least Concern on the IUCN Red List. Typically found in grasslands, wetlands, forests, and cultivated landscapes. Widely distributed across Europe (4 countries), North America (Canada, United States), and South America (Brazil).

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.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway