Herbs & Plants

Juniperus ashei

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Botanical Name : Juniperus ashei
Family: Cupressaceae
Genus: Juniperus
Species: J. ashei
Kingdom: Plantae
Division: Pinophyta
Class: Pinopsida
Order: Pinales

Synnonyms: Juniperus occidentalis var. conjungens, Juniperus occidentalis var. texana & Juniperus sabinoides.

Common Names : Ashe Juniper, Post Cedar, Mountain Cedar, or Blueberry Juniper

Habitat : Juniperus ashei is   native to northeastern Mexico and the south-central United States north to southern Missouri; the largest areas are in central Texas, where extensive stands occur.

Juniperus ashei is a drought-tolerant evergreen shrub or small tree.It grows up to 10 m tall, rarely 15 m, and provides erosion control and year-round shade for wildlife and livestock.

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The feathery foliage grows in dense sprays, bright green in color. The leaves are scale-like, 2-5 mm long, and produced on rounded (not flattened) shoots. It is a dioecious species, with separate male and female plants. The seed cones are globose to oblong, 3-6 mm long, and soft, pulpy and berry-like, green at first, maturing purple about 8 months after pollination. They contain 1-2 seeds, which are dispersed when birds eat the cones and pass the seeds in their droppings. The male cones are 3-5 mm long, yellow, turning brown after pollen release in December to February.

Medicinal Uses:
In New Mexico the Native Americans use cedarwood oil for skin rashes.  It is also used for arthritis and rheumatism

Other Uses:
The wood is naturally rot resistant and provides raw material for fence posts. Posts cut from old-growth Ashe junipers have been known to last in the ground for more than 50 years. Over one hundred years ago, most old-growth Ashe junipers were cut and used not only for fence posts, but also for telegraph poles and railroad ties.

Although Ashe juniper is native to central Texas, it is considered a weed by many landowners and developers in that area, especially by ranchers because overgrazing by cattle selectively removes competition when they avoid the bitter-tasting juniper seedlings. This allows for a high rate of juniper establishment and reduces ranch yields. Ashe juniper does not resprout when cut, like its cousin the redberry juniper.

The junipers that establish in overgrazed lands are young and vigorous, dense and multi-trunked, and shallow rooted. This makes it difficult for remaining grasses to compete for water, especially if they are still being grazed and the soils are impoverished. The presence of these dense, shallow-rooted shrubs also means less water reaches the soil, subsurface flows and deep drainage. However, their dense canopies and thick litter do reduce overland flows compared to grazed grasses. Old-growth Ashe junipers are different in that they have true trunks, use less water, are slow growing, less foliated and have very deep roots. Wilcox (Texas A&M University) and Keith Owens (Texas Ag. Ext. researcher at Uvalde) are currently studying how these deeper roots may facilitate the deep drainage of water down trunk stemflows. Dr. Owens reports that for every one inch of rain, about 6 gallons of previously undocumented water is funneled down the trunks

Known Hazards:
The pollen causes a severe allergic reaction for some people in the winter, and people who are allergic to Ashe juniper are also often allergic to the related Juniperus virginiana. Consequently, what begins as an allergy in the winter, may extend into spring since the pollination of J. virginiana follows after that of J. ashei. Ashe juniper is sometimes known in the area as “mountain cedar” (although neither it nor J. virginiana are cedars), and some locals refer to the allergy as cedar fever.

Disclaimer : The information presented herein is intended for educational purposes only. Individual results may vary, and before using any supplements, it is always advisable to consult with your own health care provider.


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