UNIVERSITY OF ARIZONA HERBARIUM
BOTANICAL ILLUSTRATION COLLECTION
-- WORKS BY LUCRETIA BREAZEALE HAMILTON --

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Exhibit Item 36

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Sapium biloculare
Mexican jumping bean, Yerba-de-fleche

Illustrator: Lucretia B. Hamilton
Pen and Ink

Plants That Poison, 1979

From the Collection of the
University of Arizona Herbarium


A woody shrub from hot southwestern Arizona into Sonora and Baja California Sur. As the plant is a euphorbia with toxic sap, the wood has been used to stupefy fish and as an arrow tip poison.

Exhibit Item 37

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Erythrina flabelliformis
Coral bean

Illustrator: Lucretia B. Hamilton
Pen and Ink

Plants That Poison, 1979
Trees of Sonora, Mexico, 2001

From the Collection of the
University of Arizona Herbarium


At the north end of its range in southern Arizona, this woody legume is shrubby. Further south in Sonora it is tree like. The long red tubular flowers are hummingbird pollinated.