1) Botrychium echo W.H. Wagner (reflected grapefern): a technical conservation assessment

Author
Anderson, David G
Publisher
Colorado State University, Colorado Natural Heritage Program
Pub. Date
[2004]

2) Botrychium hesperium Barneby (western moonwort): a technical conservation assessment

Author
Anderson, David G
Publisher
Colorado State University, Colorado Natural Heritage Program
Pub. Date
[2004]

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