Leaves of the Cascara Sagrada.
Laing, Hamilton Mack, 1883-1982
Forests and forestry--British Columbia
Laing, Hamilton Mack, 1883-1982
12 Jun 1940
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https://search-bcarchives.royalbcmuseum.bc.ca//leaves-of-cascara-sagrada
I-51824
Comox-Strathcona Region (B.C.)