25 juin 2019
Richard C.P. Wilson, « Tahoe National Forest. Carson Quadrangle, Nevada. Note tall stumps of Pinus jeffreyi and Abies on 1870 mine timber operations on Mt. Rose Ridge. Reproduction neglible. Shrubs are Ceanothus velutinus, Artemisia tridentata, Ribes cereum. », Berkeley Library Digital Collections, ID : 10670/1.qitaf7