Black-calyx milk vetch vs Wolf

Astragalus nigrocalycinus compared with Canis lupus

Taxonomic Classification

Rank	Black-calyx milk vetch	Wolf
Kingdom	Plantae (Pflanzen)	Animalia (Tier)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordatiere)
Class	Magnoliopsida (Dicots)	Mammalia (Säugetiere)
Order	Fabales (Schmetterlingsblütenartige)	Carnivora (Raubtiere)
Family	Fabaceae	Canidae (Dogs & Wolves)
Genus	Astragalus	Canis (Dogs & Wolves)
Species	Astragalus nigrocalycinus	Canis lupus

Conservation Status

Black-calyx milk vetch

CR — Critically Endangered

Wolf

CR — Critically Endangered

Population: ~300.0K

Trend: Stable →

Physical Characteristics

Attribute	Black-calyx milk vetch	Wolf
Diet	—	Carnivore
Average Lifespan	—	13 years
Average Length	—	1.6 m
Average Weight	—	45.0 kg

Habitat & Geographic Range

Black-calyx milk vetch

Habitat

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

Wolf

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, deserts and xeric shrublands, and tropical and subtropical dry broadleaf forests, among 13 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (Seychelles), Asia (Japan), Europe (5 countries), North America (7 countries), Oceania and the Pacific (Marshall Islands, Vanuatu), and South America (5 countries). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Black-calyx milk vetch

The Black-calyx milk vetch (Astragalus nigrocalycinus) is a species in the genus Astragalus. It is currently classified as Critically Endangered on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Wolf

The most widely distributed wild canid, gray wolves range from North America across Eurasia in diverse habitats including tundra, forests, and grasslands. Highly social animals living in family packs led by a dominant breeding pair. As keystone predators, wolves regulate prey populations and profoundly shape ecosystem structure, as demonstrated by their reintroduction in Yellowstone. Once heavily persecuted, populations are recovering in many regions.