Prosopis glandulosa. HONEY MESQUITE. SW US, Texas, Mexico
Leguminosae (Pea family)

This tree with drooping branchlets vaguely resembles the pepper tree, Schinus molle. A fine 15-foot specimen grows at the Carnegie Institution’s Department of Plant Biology on Panama Street, behind the Keck Laboratories next to a redwood.

Illustrations: detail from George B. Sudworth. Forest Trees of the Pacific Slope. USDA, 1907.


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