Dicranum scoparium, the Broom moss, is a species of dicranid moss, native to North America, including the Great Lakes region.

Other varieties, such as Isothecium myosuroides, Dicranum scoparium, Polytrichum formosum and Plagiothecium undulatum, can be found on rocks.

A very local community characterised by a lichen-rich turf (Cladonia species) and the broom moss (Dicranum scoparium) is found in some stabilised missile-impaction craters on the central ranges.

The larvae feed on various mosses growing on rocks and walls, including Hypnum cupressiformis, Dicranum scoparium, Bryum capillare and Grimmia pulvinata.

It is often associated with mosses such as Brachythecium albicans, B. mutabulum, Campylopus introflexus, Ceratodon purpureus, Dicranum scoparium, Eurhynchium hians, E. praelongum, E. speciosum, Rhacomitrium canescens, Pohlia species or Polytrichum piliferum.