Ascending Grapefern vs Complex-toothed Flying Squirrel

Botrychium ascendens compared with Trogopterus xanthipes

Key Differences

Ascending Grapefern is Not Evaluated while Complex-toothed Flying Squirrel is Near Threatened.

Taxonomic Classification

Rank	Ascending Grapefern	Complex-toothed Flying Squirrel
Kingdom	Plantae (thực vật)	Animalia (động vật)
Phylum	Tracheophyta	Chordata (động vật có dây sống)
Class	Polypodiopsida (Lớp Dương xỉ)	Mammalia (lớp Thú)
Order	Ophioglossales (Bộ Lưỡi rắn)	Rodentia (Bộ Gặm nhấm)
Family	Ophioglossaceae	Sciuridae (Squirrels)
Genus	Botrychium	Trogopterus
Species	Botrychium ascendens	Trogopterus xanthipes

Conservation Status

Ascending Grapefern

NE — Not Evaluated

Complex-toothed Flying Squirrel

NT — Near Threatened

Physical Characteristics

Attribute	Ascending Grapefern	Complex-toothed Flying Squirrel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Ascending Grapefern

Habitat

Typically found in moist, shaded forest floors and tropical canopies.

Range

Distributed across Canada, Norway, and United States.

Complex-toothed Flying Squirrel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Ascending Grapefern

Ascending grapefern (Botrychium ascendens) is a species in the genus Botrychium. Typically found in moist, shaded forest floors and tropical canopies.

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.