- PacNW Herbaria Records for Ditrichum heteromallum
- Search Arctos Database for Ditrichum heteromallum (Southeast only)
- Search Arctos Database for Ditrichum heteromallum (entire database)
- Encyclopedia of Life search for Ditrichum heteromallum
- iNaturalist Observations for Ditrichum heteromallum in Southeast Alaska
Southeastern Alaska Distribution: See Map 198. Widespread, but scattered.[as D. zonatum] See Map 199.
Habitat: Bare soils, roadside banks, disturbed sites, construction areas, sometimes among the roots of overturned trees. Most commonly in exposed situations.
[as D. zonatum] Usually subalpine and alpine, in damp cliff crevices, among rocks and occasionally in tundra vegetation. Also known to descend to near sea level in similar environments.
Comments: This species is known in southeastern Alaska only from areas of human activity, especially on roadcuts.
[as D. zonatum] The Alaskan material is always sterile.