Brittlestem hempnettle vs Coimbra-Filho’s Titi

Galeopsis tetrahit compared with Callicebus coimbrai

Key Differences

• Brittlestem hempnettle is Least Concern while Coimbra-Filho’s Titi is Endangered.

Taxonomic Classification

Rank	Brittlestem hempnettle	Coimbra-Filho’s Titi
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Magnoliopsida (Dicots)	Mammalia (Mammals)
Order	Lamiales (Lamiales)	Primates (Primates)
Family	Lamiaceae	Pitheciidae
Genus	Galeopsis	Callicebus
Species	Galeopsis tetrahit	Callicebus coimbrai

Conservation Status

Brittlestem hempnettle

LC — Least Concern

Coimbra-Filho’s Titi

EN — Endangered

Physical Characteristics

Attribute	Brittlestem hempnettle	Coimbra-Filho’s Titi
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brittlestem hempnettle

Habitat

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

Range

Widely distributed across Asia (Armenia, Japan), Europe (9 countries), North America (Canada, United States), and South America (Chile).

Coimbra-Filho’s Titi

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Brittlestem hempnettle

The Brittlestem hempnettle (Galeopsis tetrahit) is a species in the genus Galeopsis. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Coimbra-Filho’s Titi

The Coimbra-Filho's Titi (Callicebus coimbrai), also known as Coimbra-Filho's Titi Monkey, is a small New World monkey in the family Pitheciidae, named in honour of the Brazilian primatologist Adelmar F. Coimbra-Filho. This titi monkey is endemic to the Atlantic Forest of northeastern Brazil, with its range restricted to the states of Sergipe and southern Alagoas—one of the most critically fragmented and threatened biomes on Earth. Adults are small, with reddish-brown fur on the flanks and upperparts, pale grey on the underparts, and an orange-red forehead band. Like all titi monkeys, Callicebus coimbrai is highly social, living in monogamous family groups of 2–5 individuals that engage in elaborate dawn duets and tail-twining behaviour as expressions of pair bonding. The species inhabits Atlantic Forest fragments, including lowland and highland forest patches, riverine gallery forest, and secondary growth, where it subsists on fruits, seeds, leaves, and occasional invertebrates. The Coimbra-Filho's Titi is classified as Endangered by the IUCN due to its severely fragmented range within one of the world's most deforested biomes, with less than 12% of original Atlantic Forest remaining, ongoing habitat loss from agricultural expansion, and small, isolated population sizes highly vulnerable to stochastic extinction events.