Big Astragalus vs Cluster Bat

Astragalus magnificus compared with Myotis sodalis

Key Differences

• Big Astragalus is Critically Endangered while Cluster Bat is Near Threatened.

Taxonomic Classification

Rank	Big Astragalus	Cluster Bat
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Magnoliopsida (Dicots)	Mammalia (Mammals)
Order	Fabales (Legumes & Allies)	Chiroptera (Bats)
Family	Fabaceae	Vespertilionidae
Genus	Astragalus	Myotis
Species	Astragalus magnificus	Myotis sodalis

Conservation Status

Big Astragalus

CR — Critically Endangered

Cluster Bat

NT — Near Threatened

Physical Characteristics

Attribute	Big Astragalus	Cluster Bat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Big Astragalus

Habitat

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

Cluster Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in United States. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Big Astragalus

The Big Astragalus (Astragalus magnificus) 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.

Cluster Bat

Myotis sodalis, the Indiana bat or cluster bat, is a medium-sized insectivorous bat in the family Vespertilionidae endemic to the eastern United States. It is one of the most endangered bats in North America, listed as Endangered under the U.S. Endangered Species Act and classified as Near Threatened by the IUCN. The species is named for its behavior of clustering in extremely dense hibernation groups—sometimes thousands of bats per square meter—in specific limestone caves and mines during winter. These few critical hibernacula make the species extremely vulnerable to disturbance and disease. Since 2007, Indiana bats have suffered severe mortality from white-nose syndrome, a fungal disease caused by Pseudogymnoascus destructans that disrupts hibernation and causes mass starvation. During summer, Indiana bats roost under loose bark of dead trees and forage for insects over forested landscapes and riparian areas. Foraging individuals consume moths, beetles, and flying insects. Conservation efforts include cave gate protection, white-nose syndrome research, and summer habitat management on public and private lands across the eastern US.