Water loss is reduced by the resinous waxy coating of the leaves, and by their small size, which prevents them from heating above air temperature (which would increase the vapor pressure deficit between the leaf and the air, thus increasing water loss). Bark gray with darker swollen nodes. While the chaparral plant is not proven to be totally safe and effective, in traditional folk medicine and alternative medicine, it has been used for a host of things, such as: 1. NRCS PLANT CODE: LATR2 COMMON NAMES: creosote bush greasewood TAXONOMY: The scientific name of creosote bush is Larrea tridentata (D.C.) Cov. Leaves alternate, lobed or pinnate, have gummy secretions and a distinctive creosote-like odor, especially after a rain. [11][12][13], King Clone was identified and its age estimated by Frank Vasek, a professor at the University of California, Riverside. By measuring the diameter of the ring, its total age could be estimated. Colds 6. Galls may form by the activity of the creosote gall midge. [21] The shrub is still widely used as an herbal medicine in Mexico. Mature plants, however, can tolerate extreme drought stress. This rapid uptake causes branches to grow several centimeters at the end of a wet season. Bladder infection 3. [23] The United States Food and Drug Administration has issued warnings about the health hazards of ingesting chaparral or using it as an internal medicine, and discourages its use. Because of leaf and stem alignment, creosotebush provides little shade during the full desert sunshine. The flowers are up to 25 mm (0.98 in) in diameter, with five yellow petals. Growth Form: Shrub; plants drought-tolerant; brittle branches. Its numerous branches are brittle and densely leafy at the tips. ABBREVIATION: LARTRI SYNONYMS: Larrea divaricata Cav. tridentata , Larrea mexicana General Description: Evergreen. Patrick Breen, From this, it can be inferred that all the plants inside a stand are of equal age. The common name refers to the greasy smell exuded by the plant, most noticeable during wetter periods. [20] Papago Indians prepared it medicinally for stiff limbs, snake bites, and menstrual cramps. The bark is a light grey color, patterned with darker shaded, swollen nodes. Color: Yellow Common name: Creosote Bush, Greasewood Latin name: Larrea tridentata Family: ZYGOPHYLLACEAE Height: 3-10 feet Description: Creosote bush is an open, vase-shape shrub with solitary, small, numerous flowers on grayish stems/trunks. It is hardy to zone (UK) 8. Creosote bush stands tend to display an evenly spaced distribution of plants. Larrea tridentata. [4], It is a flowering plant in the family Zygophyllaceae. Gas 8. Cancer 4. Creosote bush is most common on the well-drained soils of alluvial fans and flats. tridentata: 3 toothed. Also, in the first line - I dislike the listing of "greasewood" as a common name, and the source cited is very poor. Larrea tridentata NC State University and N.C. A&T State University work in tandem, along with federal, state and local governments, to form a strategic partnership called N.C. [24] In 2005, Health Canada issued a warning to consumers to avoid using the leaves of Larrea species because of the risk of damage to the liver and kidneys. It has been alive an estimated 11,700 years, in the central Mojave Desert near present-day Lucerne Valley, California. [7] In the regions where it grows, its smell is often associated with the "smell of rain".[8]. [19] The Coahuilla Indians used the plant for intestinal complaints and tuberculosis. It is a genus of flowering plant that belongs to the Zygophyllaceae family. Now, however, it has been shown[citation needed] that the root systems of mature creosote plants are simply so efficient at absorbing water that fallen seeds nearby cannot accumulate enough water to germinate, effectively creating dead zones around every plant.[18]. Rounded, multi-stemmed evergreen shrub. Weight loss Some early research points to potential support for some (but not all) of these uses, but the… In Sonora, it is more commonly called hediondilla. The leaves are naturally varnished, to slow evaporation and conserve water. Ground heat compounds the young plants' susceptibility to water stress, and ground temperatures can reach upwards of 70 Â°C (160 Â°F). How is it used? Diabetes 7. arenaria L.D. One interesting characteristic of this plant, which was an important native American herb for centuries, is that it produces a sap that … Leaf: The leaf is a distinctive bifolate wing, tiny; usually yellow-green becoming darker and aromatic after rainfall. The small, lanceolate leaves have an opposite phyllotaxy, young leaves are resinous and coated with natural oils that conserve water. In Mexican traditional medicine, the leaves and twigs are stepped in boiling water for just a few seconds to make a tea. Chemicals found in creosote bush roots have been shown to inhibit the growth of burro bush roots, but as of 2013, much of their relationship remains unexplained. In terms of negative water potential, creosote bushes can operate fully at -50 bars of water potential and have been found living down to -120 bars, although the practical average floor is around -70 bars, where the plant's need for cellular respiration generally exceeds the level that the water-requiring process of photosynthesis can provide. To become established, the young plant apparently must experience three to five years of abnormally cool and moist weather during and after germination. non Cav. Suitable pH: acid, neutral and basic (alkaline) soils. [10], The "King Clone" creosote ring is one of the oldest living organisms on Earth. Chaparral is a good Mouthwash. The yellow flowers turn into small gray fruits that attract foraging animals. Possibly because it is so common in the desert, one Arizona website states that its "attractiveness is a matter of personal preference", suggesting that more than a few desert inhabitants consider it ugly. The plant has been widely used medicinally by … Larrea tridentata . It is thought that this meeting reestablished a biological relationship that was broken when the American camels became extinct in the Quaternary Extinction Event, making it an evolutionary anachronism. Larrea tridentata is an ancient herb that thrives in the arid deserts. Tuberculosis 14. (Of course, "attractiveness" of any plant is a matter of personal preference... as is wallpaper.). Flowers about 3 cm wide, yellow, appear over much to the year, but especially in spring. Plants drop some leaves heading into summer, but if all leaves are lost, the plant will not recover. Larrea tridentata is an evergreen Shrub growing to 4 m (13ft 1in). The whole plant exhibits a characteristic odor of creosote, from which the common name derives. As a plant known as "creosote bush" and "greasewood", as a medicinal herb known as "chaparral" and as "gobernadora" in Mexico. Fruit rounded capsule, 4.5 mm wide, covered with whitish to rusty hairs. Five species of evergreen, xerophytic shrubs. Parts of the plant used: The leaves and twigs. This shrub is extremely common and widespread in the desert and is the predominate plant in areas known as creosote flats. [22], Larrea tridentata is often referred to as chaparral when used as a herbal remedy and supplement; however, it does not grow in the synonymous plant community chaparral. CPN (Certified Plant Nerd)[email protected], College of Agricultural Sciences - Department of Horticulture, USDA Hardiness Zone Maps of the United States, Oregon Master Gardener Training: Identifying Woody Plants.
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