Guaiacum Uses

The genus is famous as the supplier of Lignum vitae, which is the heartwood of several species in the genus. It is the hardest wood that is measured using the Janka hardness test, requiring a force of 4,500 lbf (20,000 N) to embed a steel ball 0.444 in (1.13 cm) in diameter a distance half of that into the wood.
Among many other applications, gum from the wood was once used to treat syphilis. For example, Benvenuto Cellini records this use of it in his memoirs. See also the quote by Nashe in the article Honorificabilitudinitatibus (there spelled 'guiacum'). Guaiacum resin has been used to treat a variety of medicinal conditions from coughs to arthritis. Wood chips can also be used to brew a tea.
The artist Jan van der Straet (also known as Johannes Stradanus) painted a scene of a wealthy man receiving treatment of syphilis with Guaiacum wood sometime around 1580. The title of the work is "Preparation and Use of Guayaco for Treating Syphilis." Epidemic syphilis had been raging through Europe for nearly a century at the time of the painting, and hopes were high that this plant from the New World would provide a cure. The richly colored and detailed work depicts four servants preparing the concoction while a physician looks on, hiding something behind his back while the hapless patient drinks.
A phenolic compound derived from the resin of Guaiacum trees is used in a common test for blood in human stool samples. The presence of haem in the blood causes the formation of a coloured product in the presence of hydrogen peroxide. The effect of peroxidases in horseradish on guiacum was first noted in 1810 by Planche.
As a food additive Guaiacum has the E number of E314 and is classified as an antioxidant.
A widely used derivative drug is the expectorant known as guaifenesin.
The soap fragrance oil of guaiac comes from Bulnesia sarmientoi, a South American tree from the same family.
Members of the genus are grown in Florida and California as ornamental plants.

Source: http://en.wikipedia.org/wiki/Guaiacum
See Also: gift basket, flower arrangement, flowers Barbados