Colton's Milkvetch vs Epaulard

Astragalus coltonii compared with Orcinus orca

Key Differences

Colton's Milkvetch is Least Concern while Epaulard is Data Deficient.

Taxonomic Classification

Rank	Colton's Milkvetch	Epaulard
Kingdom	Plantae (พืช)	Animalia (สัตว์)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (สัตว์มีแกนสันหลัง)
Class	Magnoliopsida (พืชใบเลี้ยงคู่)	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order	Fabales (อันดับถั่ว)	Cetacea (Whales & Dolphins)
Family	Fabaceae	Delphinidae (Oceanic Dolphins)
Genus	Astragalus	Orcinus (Orcas)
Species	Astragalus coltonii	Orcinus orca

Conservation Status

Colton's Milkvetch

LC — Least Concern

Epaulard

DD — Data Deficient

Population: ~50.0K

Trend: Unknown ?

Physical Characteristics

Attribute	Colton's Milkvetch	Epaulard
Diet	—	Carnivore
Average Lifespan	—	50 years
Average Length	—	8.0 m
Average Weight	—	5.4 t

Habitat & Geographic Range

Colton's Milkvetch

Habitat

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

Epaulard

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 11 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and South America (Colombia, Ecuador, Venezuela).

Colton's Milkvetch

Astragalus coltonii, Colton's milkvetch, is a perennial legume in the family Fabaceae assessed as Least Concern by the IUCN. The genus Astragalus is the largest genus of flowering plants globally, with over 3,000 species distributed primarily in temperate and arid regions of the Northern Hemisphere. Astragalus coltonii 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 Astragalus species accumulate selenium or alkaloids from the soil, making them toxic to livestock, though the toxicological properties of A. coltonii specifically have not been well characterised. Biological traits of this species remain poorly documented in the scientific literature.

Epaulard

The largest member of the dolphin family, orcas reach up to 9 meters and 6 tonnes and are found in every ocean from Arctic to Antarctic. Apex predators living in matrilineal pods with distinct dialects, hunting strategies, and cultural traditions that differ between populations. Some populations specialize in fish, others in marine mammals. No natural predators; orcas sit at the top of every marine food chain they inhabit.