Guépard vs Christmas Fern Leaf Curl

Acinonyx jubatus compared with Taphrina polystichi

Key Differences

Guépard is Vulnerable while Christmas Fern Leaf Curl is Not Evaluated.

Taxonomic Classification

Rank	Guépard	Christmas Fern Leaf Curl
Kingdom	Animalia (animal)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Ascomycota (Sac Fungi)
Class	Mammalia (mammifères)	Taphrinomycetes (Taphrinomycetes)
Order	Carnivora (carnivores)	Taphrinales (Taphrinales)
Family	Felidae (Cats)	Taphrinaceae
Genus	Acinonyx (Cheetahs)	Taphrina
Species	Acinonyx jubatus	Taphrina polystichi

Conservation Status

Guépard

VU — Vulnerable

Population: ~6.7K

Trend: Decreasing ↓

Christmas Fern Leaf Curl

NE — Not Evaluated

Physical Characteristics

Attribute	Guépard	Christmas Fern Leaf Curl
Diet	Carnivore	—
Average Lifespan	12 years	—
Average Length	1.5 m	—
Average Weight	50.0 kg	—

Habitat & Geographic Range

Guépard

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical grasslands and savannas, and flooded grasslands and savannas, among 9 distinct biome types spanning the Afrotropic and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Botswana, Iran, Kenya, Namibia, and Tanzania. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Christmas Fern Leaf Curl

Habitat

Native to North America, inhabiting ecosystems characteristic of the region.

Range

Found in United States.

Guépard

The fastest land animal on Earth, reaching speeds of 112 km/h over short distances across African and Iranian grasslands. Slender build with a deep chest, long legs, and distinctive black tear-stripe markings. Unlike other big cats, cheetahs vocalize with chirps and purrs. Vulnerable, with only ~7,000 remaining due to habitat fragmentation and competition with larger predators.

Christmas Fern Leaf Curl

The Christmas fern leaf curl (Olpidium polystichi) is a fungal pathogen in the family Olpidiaceae, occurring as a parasite on Christmas fern (Polystichum acrostichoides) and related host plants. Olpidium species are endobiotic chytrid fungi — organisms in the phylum Chytridiomycota — that complete their entire life cycle within the cells of host plant tissue, particularly in young, actively growing tissue. The disease caused by Olpidium polystichi on Christmas fern is associated with the characteristic curling, distortion, and stunting of developing fronds, giving rise to its common name. Chytrid fungi in the genus Olpidium are biotrophic parasites that form zoosporangia within host cells; these release motile zoospores that disperse in water films or free water to infect new host tissue. Many Olpidium species are also known as vectors of plant viruses, transmitting viral pathogens to host plants through their zoospores. The host specificity and ecological impact of Olpidium polystichi on Christmas fern populations are not extensively documented in the scientific literature. As a microscopic fungal pathogen, it is unlikely to cause significant population-level impacts on the widespread and robust Christmas fern under typical conditions.