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Alkaline Wing-nerved moss

Pterygoneurum kozlovii



Threatened (Federal)
Blue List (Provincial)


Alkaline Wing-nerved Moss is an inconspicuous moss that grows in small patches or widespread turfs. The leaves are light or yellowish green and are about 1 mm in length with curved edges. The mid-rib is light brown and is covered by 2 or 3 small flaps that are characteristic of this species. The spores are contained within round capsules that measure between 0.8 and 1 mm long and ripen into the summer.


This species occurs only on seasonally wet alkaline soils, which are commonly found in narrow strips around wetlands in flat or very slightly sloped areas. It grows only in open areas along the edges of ponds and lakes, and on mud flats and seepage slopes where the vegetation is short and patchy. It is generally found amongst grasses and sedges.


-Habitat destruction from cattle, horses, and domestic animals
-Habitat loss due to grazing, urbanization, road construction, and ATV use
-Long periods of drought
-Invasive plants

You Can Help!

-Learn more about this plant and its biology
-Avoid trampling or driving over the plant and the surrounding environment
-Control and/or remove invasive plants and reduce soil disturbance to prevent invasive plants from establishing


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