Species name referring to the leaf orientation in which the points bend abruptly outward, giving the leafy branches a prickly appearance.
Although called a peat moss, S. squarrosum is not an important peat-former.
The coarse plants with bristly squarrose leaves on the divergent branches are characteristic; the species is one of forest and cliff habitats, not in bogs.
Loose, pale, dull green turfs of sprawling or suberect to erect inter tangled shoots, sometimes partially submerged.
S. squarrosum might be confused with S. palustre but the strongly squarrose leaves and the non-bog habitat of the former should separate them. Microscopically S. squarrosum lacks stem cells that have fibril thickenings.
If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.
Illustration Source: Some Common Mosses of BC