Brook-Side Alder vs Brown Widow

Alnus serrulata compared with Latrodectus geometricus

Key Differences

Brook-Side Alder is Least Concern while Brown Widow is Not Evaluated.

Taxonomic Classification

Rank	Brook-Side Alder	Brown Widow
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Arthropoda (Arthropods)
Class	Magnoliopsida (Dicots)	Arachnida (Arachnids)
Order	Fagales (Beeches & Oaks)	Araneae (Araneae)
Family	Betulaceae	Theridiidae
Genus	Alnus	Latrodectus
Species	Alnus serrulata	Latrodectus geometricus

Conservation Status

Brook-Side Alder

LC — Least Concern

Brown Widow

NE — Not Evaluated

Physical Characteristics

Attribute	Brook-Side Alder	Brown Widow
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brook-Side Alder

Habitat

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

Range

Distributed across Canada and United States.

Brown Widow

Habitat

Typically found in terrestrial habitats from forests to deserts.

Range

Widely distributed across Africa (South Africa), Asia (Japan), Europe (7 countries), North America (United States), and South America (Colombia, Ecuador, Peru).

Brook-Side Alder

The Brook-Side Alder (Alnus serrulata) is a species in the genus Alnus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Brown Widow

The Brown Widow (Latrodectus geometricus) is a species in the genus Latrodectus. Typically found in terrestrial habitats from forests to deserts. Its geographic range includes widely distributed across africa (south africa), asia (japan), europe (7 countries), north america (united states), and south america (colombia, ecuador, peru).