Blunt-headed Salamander vs Choke

Ambystoma amblycephalum compared with Epichloe typhina

Key Differences

• Blunt-headed Salamander is Critically Endangered while Choke is Not Evaluated.

Taxonomic Classification

Rank	Blunt-headed Salamander	Choke
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Ascomycota (Sac Fungi)
Class	Amphibia (Amphibians)	Sordariomycetes (Sordariomycetes)
Order	Caudata (Caudata)	Hypocreales (Hypocreales)
Family	Ambystomatidae	Clavicipitaceae
Genus	Ambystoma	Epichloe
Species	Ambystoma amblycephalum	Epichloe typhina

Conservation Status

Blunt-headed Salamander

CR — Critically Endangered

Choke

NE — Not Evaluated

Physical Characteristics

Attribute	Blunt-headed Salamander	Choke
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blunt-headed Salamander

Habitat

Found across multiple habitat types including tropical and subtropical coniferous forests, tropical and subtropical grasslands and savannas, and Mediterranean forests and woodlands, among 6 distinct biome types spanning the Nearctic and Neotropic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Mexico. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Choke

Habitat

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

Range

Found in United States.

Blunt-headed Salamander

The Blunt-headed Salamander (Ambystoma amblycephalum) is a species in the genus Ambystoma. It is currently classified as Critically Endangered on the IUCN Red List. Found across multiple habitat types including tropical and subtropical coniferous forests, tropical and subtropical grasslands and savannas, and Mediterranean forests and woodlands, among 6 distinct biome types spanning the Nearctic and Neo

Choke

Choke (Epichloe typhina) is an endophytic and pathogenic fungus in the family Clavicipitaceae, phylum Ascomycota, that colonises the tissues of various cool-season grasses (Poaceae) across Europe and North America. The name refers to the disease it causes — infected grass tillers are typically 'choked' (prevented from flowering) when the fungus produces a dense, white to cream-coloured, stromata (a compact fungal structure) that surrounds the flowering stem before it can emerge, suppressing seed production. Epichloe species exist along a mutualism-parasitism continuum; some strains are biotrophic endophytes living almost entirely within grass tissues without obvious symptoms and conferring benefits to the host such as increased drought resistance and deterrence of herbivores through alkaloid production, while others — including E. typhina — are more parasitic in nature, sterilising infected host tillers. The fungus spreads via airborne ascospores produced on its stroma that infect new host plants. Related Epichloe/Neotyphodium endophytes are of great practical importance to agriculture as they produce ergot alkaloids and other compounds that can cause toxicosis in livestock grazing infected pasture grasses. As a fungal pathogen/endophyte rather than a wildlife species, it is Not Evaluated by the IUCN.