Orthotrichum alpestre var. watsonii (James) Grout Moss Fl. N. Amer. 2: 125. 1935.

Nomenclatural References

• person : Abel Joel Grout (1867-1947) Based on occurrence of standard abbreviation 'Grout' in the authors string.
• person : Thomas Potts James (1803-1882) Based on occurrence of standard abbreviation 'James' in the authors string.
• database : The Plant List v1.1 record tro-35173093
• database : The Plant List version 1.0, record: tro-35173093
• database : Tropicos record: 35173093 Based on data supplied by Bryonames