Iochroma

Iochroma is a genus of about 20 species of shrubs and small trees found in the forests of Central and South America. Their flowers are tubular or trumpet-shaped, and may be blue, purple, red, yellow, or white, becoming pulpy berries. The leaves are alternate, simple, and entire.

Iochromas are believed to contain high levels of tropane alkaloids, and are used by shamans of some Indian tribes for their hallucinogenic effects.

Iochromas come in many colors, including blue, red, lavender, pink and variations of these colors. They are grown for their ornamental value by nurseries in Florida and California. Iochromas make great patio trees (topiary), most commonly trained as standards. Standards are shrubs trained into a single-trunked tree shape. Standards have the advantages of a small tree, such as shade and beauty, but do not grow too large. Iochroma flowers are very attractive to hummingbirds, who feed on the nectar. The Iochroma flower nectar apparently does not have a toxic effect on hummingbirds.

Iochromas are related to the plants Datura and Brugmansia. All of these plants have high levels of tropane alkaloids being studied for possible future medicinal uses, including potential as arthritis medication. Motion-sickness pill and patch medications (Dramamine, Scopolamine) are derivatives of Brugmansias. Iochromas have over 150 different tropane alkaloids contained in their white, milky sap.

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