Pincushion Moss

Leucobryum glaucum

L. glaucum grows in very dense, glaucous green, swollen cushions or hummocks, turning dirty white when dry, and sometimes over 50 cm tall.
Pincushion Moss - Leucobryum glaucum *ID is tentative*

Habitat: Mixed forest Geotagged,Leucobryum,Leucobryum glaucum,Pin cushion moss,Pincushion Moss,Spring,United States,moss

Appearance

The leaves are typically 6–9 mm long, erect and straight, occasionally slightly turned in one direction in larger plants, appressed and overlapping when dry, and largely composed of nerve. The lower, broader part of the leaf is as long as or longer than the narrow, tubular upper part.
Leucobryum glaucum Leucobryum glaucum (Pincushion Moss) growing under black spruce and tamarack in a conifer swamp. Geotagged,Leucobryum glaucum,Minnesota,Pincushion Moss,Spring,United States,bryophytes,moss

Habitat

L. glaucum has a fairly broad ecological range, but the most common habitats are acidic woodland and mires, from wet heath through to valley mires, raised bogs and even fens. Some hummocks in woodland can be massive and colonized by other bryophytes and vascular plants. L. juniperoideum usually avoids wet places and is most frequent on soil, tree bases and rocks in woodland.

References:

Some text fragments are auto parsed from Wikipedia.

http://www.bbsfieldguide.org.uk/sites/default/files/pdfs/mosses/Leucobryum_glaucum-juniperoideum.pdf
Taxonomy
KingdomPlantae
DivisionBryophyta
ClassBryopsida
OrderDicranales
FamilyDicranaceae
GenusLeucobryum
SpeciesLeucobryum glaucum