3-333.27.01: Orthotrichum crassifoliumClades:
Orthotrichaceae,
Hedwigiales,
Bryidae,
Bryanae,
Bryophyta,
Plants.
Taxonomy: sometimes placed in the genus Muelleriella.
Region: circumpolar, subantarctic islands, Southern Ocean, extreme south of South America, northern end of the Antarctic Peninsula.
Botany: tolerant of saline conditions; occupies supralittoral zone along rocky coastlines affected by sea spray.