Colton's Milkvetch vs Tiger

Astragalus coltonii compared with Panthera tigris

Key Differences

• Colton's Milkvetch is Least Concern while Tiger is Endangered.

Taxonomic Classification

Rank	Colton's Milkvetch	Tiger
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Magnoliopsida (Dicots)	Mammalia (Mammals)
Order	Fabales (Legumes & Allies)	Carnivora (Carnivorans)
Family	Fabaceae	Felidae (Cats)
Genus	Astragalus	Panthera (Big Cats)
Species	Astragalus coltonii	Panthera tigris

Conservation Status

Colton's Milkvetch

LC — Least Concern

Tiger

EN — Endangered

Population: ~4.5K

Trend: Increasing ↑

Physical Characteristics

Attribute	Colton's Milkvetch	Tiger
Diet	—	Carnivore
Average Lifespan	—	20 years
Average Length	—	3.0 m
Average Weight	—	220.0 kg

Habitat & Geographic Range

Colton's Milkvetch

Habitat

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

Tiger

Habitat

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

Range

Distributed across Colombia and Ecuador. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Colton's Milkvetch

<em>Astragalus coltonii</em>, Colton's milkvetch, is a perennial legume in the family Fabaceae assessed as Least Concern by the IUCN. The genus <em>Astragalus</em> is the largest genus of flowering plants globally, with over 3,000 species distributed primarily in temperate and arid regions of the Northern Hemisphere. <em>Astragalus coltonii</em> inhabits diverse terrestrial environments, typically including semi-arid shrublands, rocky soils, and open desert margins where competition from taller vegetation is limited. Like other milkvetches, this species likely forms root associations with nitrogen-fixing bacteria, enabling it to colonise nutrient-poor substrates and contribute to soil fertility improvement in its habitat. The pinnately compound leaves, pea-type flowers, and inflated seed pods characteristic of the genus are typical features of this species. Milkvetches provide forage for native pollinators and serve as larval host plants for several butterfly and moth species. Some <em>Astragalus</em> species accumulate selenium or alkaloids from the soil, making them toxic to livestock, though the toxicological properties of <em>A. coltonii</em> specifically have not been well characterised. Biological traits of this species remain poorly documented in the scientific literature.

Tiger

The largest wild cat on Earth, tigers can exceed 300 kg and inhabit forests from the Russian Far East to Southeast Asia. Solitary ambush predators with distinctive orange and black striped coats that provide camouflage in dappled light. Critically endangered, with fewer than 4,000 remaining in the wild due to poaching and deforestation.