Acrid lettuce vs Complex-toothed Flying Squirrel

Lactuca virosa compared with Trogopterus xanthipes

Key Differences

Acrid lettuce is Not Evaluated while Complex-toothed Flying Squirrel is Near Threatened.

Taxonomic Classification

Rank	Acrid lettuce	Complex-toothed Flying Squirrel
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Magnoliopsida (Dicots)	Mammalia (Mammals)
Order	Asterales (Daisies & Sunflowers)	Rodentia (Rodents)
Family	Asteraceae (Daisy Family)	Sciuridae (Squirrels)
Genus	Lactuca	Trogopterus
Species	Lactuca virosa	Trogopterus xanthipes

Conservation Status

Acrid lettuce

NE — Not Evaluated

Complex-toothed Flying Squirrel

NT — Near Threatened

Physical Characteristics

Attribute	Acrid lettuce	Complex-toothed Flying Squirrel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Acrid lettuce

Habitat

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

Range

Widely distributed across Asia (Japan), Europe (12 countries), North America (Canada, United States), Oceania and the Pacific (Australia), and South America (Chile).

Complex-toothed Flying Squirrel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Acrid lettuce

The Acrid lettuce (Lactuca virosa) is a species in the genus Lactuca. This species inhabits Typically found in diverse terrestrial habitats from tropical forests to temperate regions, found across Australia, Belgium, Canada, Chile, and Czech Republic.

Complex-toothed Flying Squirrel

<em>Trogopterus xanthipes</em>, the complex-toothed flying squirrel, is a medium-sized gliding rodent in the family Pteromyidae endemic to China, where it inhabits montane broadleaf and mixed forests at elevations typically between 1,000 and 2,700 metres in provinces including Sichuan, Yunnan, Guizhou, Hubei, and neighbouring regions. This species is the sole member of the genus Trogopterus and is distinguished by complex tooth morphology compared to other flying squirrels. Like all flying squirrels, it possesses a patagium — a gliding membrane stretching between fore and hind limbs — that enables it to glide between trees rather than undertake powered flight. The complex-toothed flying squirrel is nocturnal and arboreal, spending its days sheltering in tree hollows and foraging at night for leaves, bark, seeds, and fungi. Its faeces, known as Wuflingzhi, have been used in traditional Chinese medicine for centuries, leading to trapping pressure in parts of its range. The IUCN classifies this species as Near Threatened, reflecting population decline driven by overhunting for medicinal use and ongoing habitat loss from logging and agricultural encroachment in montane forests. Biological traits including average body mass, lifespan, litter size, and home range are partially documented but detailed population estimates are limited. Conservation measures include legal protections under Chinese wildlife law.