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The Creosote Bush

What Is That Smell?


Creosote Bush

The Creosote Bush is a common desert plant.

Photo courtesy of NASA Earth Observatory

The creosote bush (Latin name: Larrea tridentata) is common in the Desert Southwest. The creosote bush can be identified from its waxy green leaves and yellow flowers. These later turn to round, white wooly seed-vessels, which are the fruit of the creosote bush. In Arizona it is only found in the southern third of the state because it cannot exist above 5,000 feet of elevation. In the Phoenix area, it is the dominant desert shrub. It is pronounced: cree'-uh-sote.

Many people who are new to the desert notice the peculiar odor in the desert on the rare occasions when we have rain. People who move to the Phoenix area look at each other and ask, "What is that smell?" It is the creosote bush. It is a very unique odor, and although many people don't care for it, some seem to like it just because it conveys a positive message – RAIN!

The leaves of the creosote bush are coated with a resin to prevent water loss in the hot desert. The resin of the creosote bush also protects the plant from being eaten by most mammals and insects. It is believed that the bush produces a toxic substance to keep other nearby plants from growing. Creosote bushes are very long lived, many of them existing for one hundred years, and can grow to a height of 15 feet. There is one living creosote bush that is estimated to be nearly 12,000 years old!

Although some refer to the odor of the crushed leaves as the “heavenly essence of the desert,” the Spanish word for the plant, hediondilla, means "little stinker," signifying that not everyone considers the odor heavenly or pleasing to the senses.

The creosote plant was a virtual pharmacy for Native Americans and the steam from the leaves was inhaled to relieve congestion. It was also used in the form of a medicinal tea to cure such ailments as flu, stomach cramps, cancer, coughs, colds, and others.

Here is the recipe for Creosote Tea from DesertUSA. If you decide to try the recipe, don’t eat any part of the creosote plant--it might not be as healthy as the tea!

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This article was writen by Phil Persson, a resident of Phoenix and a computer/network support specialist. He is a regular contributor to the Phoenix Forum.

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