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Some small mammals found it advantageous to have thinner juniper trees, while cutting down the entire tree was not favorable. [16] [17] Some junipers are susceptible to Gymnosporangium rust disease and can be a serious problem for those people growing apple trees, an alternate host of the disease.
Juniperus communis, the common juniper, is a species of small tree or shrub in the cypress family Cupressaceae. An evergreen conifer , it has the largest geographical range of any woody plant , with a circumpolar distribution throughout the cool temperate Northern Hemisphere .
Juniperus occidentalis is a shrub or small tree 4–15 meters (13–49 ft) tall. Exceptionally tall specimens can be found in the John Day area of Oregon in excess of 26–28 m (85–92 ft) tall. The shoots are of moderate thickness among junipers, at 1–1.6 millimeters (1 ⁄ 32 – 1 ⁄ 16 in) diameter.
The characteristic tree is the Pashtun juniper (Juniperus seravschanica). Juniper forest occurs between 2000 and 3,000 meters elevation along ridge tops and on moderate to steep slopes (18º to 30º). They grow mostly in dense, open, and pure stands without stratification. [6]
Juniperus ashei (Ashe juniper, mountain cedar, blueberry juniper, post cedar, or just cedar) is a drought-tolerant evergreen tree, native from northeastern Mexico and the south-central United States to southern Missouri. The largest areas are in central Texas, where extensive stands occur.
Juniperus procera is a medium-sized tree reaching 20–25 metres (66–82 feet) (rarely 40 m or 130 ft) tall, with a trunk up to 1.5–2 m (5– 6 + 1 ⁄ 2 ft) diameter and a broadly conical to rounded or irregular crown.
Juniperus virginiana foliage and mature cones. Juniperus virginiana is a dense slow-growing coniferous evergreen tree with a conical or subcylindrical shaped crown [8] that may never become more than a bush on poor soil, but is ordinarily from 5–20 metres (16–66 feet) tall, with a short trunk 30–100 centimetres (12–39 inches) in diameter, rarely to 27 m (89 ft) in height and 170 cm (67 ...
Single-leaf pinyon–Utah juniper woodland in northeastern Nevada near Overland Pass at the south end of the Ruby Mountains. Pinyon–juniper woodland, also spelled piñon–juniper woodland, is a biome found mid-elevations in arid regions of the Western United States, characterized by being an open forest dominated by low, bushy, evergreen junipers, pinyon pines, and their associates.