Plate 59. <i>Alnus rubra</i> Bong. (Red alder): Characteristic alder swamp on coast, trees 9 inches to 2 feet in diameter and 50 to 75 feet high. Redwood Canon, south of Mount Tamalpais, Marin County.
Gustav Eisen and G. A. Mitchell
Jepson, W. L. <a rel="nofollow" class="external text" href="https://babel.hathitrust.org/cgi/pt?id=mdp.39015049269577;view=1up;seq=863">The Silva of California.</a> Memoirs of the University of California, Volume 2, 1910