This section is from the book "A Manual of Materia Medica and Pharmacology", by David M. R. Culbreth. Also available from Amazon: Manual of Materia Medica and Pharmacology.
Zi-go-fi-la'se-e. L. Zygophyll-um + aceae, fr. Gr.
yoke, +
leaf - i. e., leaves foliolate, yoked and in pairs. Herbs, trees, shrubs. Distinguished by flowers, white, red, yellow, with fleshy disk; sepals 5, free, glandless; petals 4-5, filaments 8-10, having small scales; ovary lobed, 4-12-celled, superior, 2 filiform ovules in each, little or no albumin; beyond tropics; stimulants, alterative, diaphoretic, anthelmintic; wood hard, durable. Genus: 1. Guaiacum (Guajacum).
 
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