Pohlia annotina is commonly found growing in disturbed areas such as on banks, near watercourses, on trail margins as well as in gardens that have been neglected. Scattered patches of this species can be seen under the boardwalk at Camosun Bog.
This species has a circumtemperate distribution that is disrupted in the Northern Hemisphere. In the east of North America, it occurs from southern Newfoundland, down to Georgia and east to the Great Lakes. In the west, it can be found in southeastern Alaska, down to northern California and as far east as Idaho.
The lower parts of the stem are often reddish in color, while the upper parts are green. They are usually un-branched, with few to many rhizoids present near their bases.
Pale green gemmae in the form of bulbils are produced in clusters and are typically abundant from autumn until the spring. Gemmae can vary in shape, from ovoid to wedge-shaped to elongate and twisted. Note the presence of peg-like leaf primordia.
The gemmae are borne in the axils of the upper leaves, generally 2-5 per leaf.
The sporophytes are relatively frequent and they tend to mature in the late spring. As they mature, they become red-brown in color and are not glossy.
The seta of this species ranges from 1-2 cm long, but occasionally longer. It is typically yellow-brown in color.