Christmas-cheer vs Long-tailed Sylph

Sedum rubrotinctum compared with Aglaiocercus kingii

Key Differences

• Christmas-cheer is Not Evaluated while Long-tailed Sylph is Least Concern.

Taxonomic Classification

Rank	Christmas-cheer	Long-tailed Sylph
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Magnoliopsida (Dicots)	Aves (Birds)
Order	Saxifragales (Saxifragales)	Apodiformes (Apodiformes)
Family	Crassulaceae	Trochilidae
Genus	Sedum	Aglaiocercus
Species	Sedum rubrotinctum	Aglaiocercus kingii

Conservation Status

Christmas-cheer

NE — Not Evaluated

Long-tailed Sylph

LC — Least Concern

Physical Characteristics

Attribute	Christmas-cheer	Long-tailed Sylph
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Christmas-cheer

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Distributed across Brazil, Spain, and Taiwan.

Long-tailed Sylph

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Christmas-cheer

Christmas cheer (Sedum rubrotinctum) is a succulent perennial in the family Crassulaceae, native to Mexico, though its exact wild origin is somewhat uncertain as it may be a stabilized hybrid or cultivated selection derived from closely related species in the genus Sedum. It is widely grown as an ornamental houseplant and garden succulent for its distinctive plump, jelly-bean-shaped leaves that are normally green but turn vivid red when stressed by bright light, drought, or temperature fluctuations. This color change results from the accumulation of anthocyanin pigments in response to environmental stress. The small, star-shaped yellow flowers appear in early spring on short upright stems. Sedum rubrotinctum is a frost-tender species that thrives in warm, dry conditions with well-drained soils and bright sunlight. It propagates readily from leaf cuttings, making it popular among succulent enthusiasts. The plant belongs to the large and diverse Crassulaceae family, which includes many drought-tolerant succulents adapted to arid and semi-arid environments worldwide. As a cultivated species of uncertain wild status, its conservation needs differ from those of wild-collected species, though sustainable horticultural propagation reduces pressure on related wild populations.

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.