25 juin 2019
H.R. Josephson, « Wood -grass type on hillside 1 mile NW of Igo. Trees chiefly digger pine- Douglas fir- interior live oak; grass of Bromus hordeaceus and Festuca megalura; Arctostaphylos viscida in understory and in foreground. », Berkeley Library Digital Collections, ID : 10670/1.hw101m