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FAGACEAE Yolo County

Quercus rugosa Née

Location: CA, USA; UC Davis Arboretum, Shields Oak Grove, Grid #8-B10; Shields Oak Grove Tree #258; Living Collections Number: A68.0360, Qualifier 20502. (Lat: 38.529195, Long: -121.764427, Elevation: 50 ft.)

Plant Attributes: DBH: 24 cm; Height: 15 m; "Twisty" branches, columnar shaped with exception of one branch.

Source: Identified by J. M. Tucker and verified by C.H. Muller. Collected by McIntyre and Gankin ca. 20 miles from Oaxaca on the road to Boone Halberg's finca near Ixtlan, Mexico on 24 November 1966. #178.

Marlene Hahn

# CA-DAV-MH31

May 10, 2012

Phylogeny of the oaks of the Americas: Diversification of an ecologically important

clade across the tropical-temperate divide. (2012-2015 NSF Grant, DEB 114648)

Photographer: Albrecht, William. Publisher: Albrecht, William.