Anastrepta orcadensis

Anastrepta orcadensis, also known as Orkney notchwort, is a liverwort found in the United States, Canada, and widely in Europe.^[1]

Anastrepta orcadensis
CC-BY 4.0 Kevin Faccenda
Scientific classification
Kingdom:	Plantae
Division:	Marchantiophyta
Class:	Jungermanniopsida
Order:	Lophoziales
Family:	Anastrophyllaceae
Genus:	Anastrepta
Species:	A. orcadensis
Binomial name
Anastrepta orcadensis (Hook.) Schiffn.[1][2]

Its existence was first discovered on Ward Hill, on the island of Hoy, Orkney, Scotland by William Jackson Hooker in 1808.^[3][4] It is commonly found in the northern hepatic mat on heather-covered slopes, woodland floors and on scree slopes in the Highlands and occurs elsewhere on the west and north coasts of the British Isles.^[5]

In Alaska, it is most abundant on islands near the open sea and on inner islands at elevations above 300 metres (1500 ft).^[6]