]> GH barcode-00401317 United States of America California Tahoe National Forest: Willow Spring 2.5 miles W of west end of Bowman Lake and 1 mi. S of rd. to Graniteville Alnus incana subsp. tenuifolia (Nuttall) Breitung (Nuttall) Breitung 2013-03-26 14:25:46 R. F. Thorne, L. E. Debuhr & C. W. Tilforth