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Hesperocyparis arizonica tree in Chiricahua National Monument, Arizona. Hesperocyparis arizonica is a coniferous evergreen tree with a conic to ovoid-conic crown. It grows to heights of 10–25 m (33–82 ft), and its trunk diameter reaches 55 cm (22 in).
Hesperocyparis (western cypress) [1] is a genus of trees in the family Cupressaceae, containing North American species otherwise assigned to the genus Cupressus. [2] They are found throughout western North America. Only a few species have wide ranges, with most being restricted-range endemics.
Hesperocyparis stephensonii may attain heights of 10 to 16 m (33 to 52 ft). [6] It usually forms a spreading tree with a central leader, only slightly taller than it is wide. The tree's female cones are about 10 mm in diameter, while cone scales are normally 6–8 mm. Often, but not always, they have conspicuous umbos 3–4 mm, which are high ...
Hesperocyparis macrocarpa is a medium-sized coniferous evergreen tree, which often becomes irregular and flat-topped as a result of the strong winds that are typical of its native area. It grows to heights of up to 40 meters (133 feet) in perfect growing conditions, and its trunk diameter can reach 2.5 meters (over 8 feet).
Trees/tall shrubs . Monterey cypress (Hesperocyparis macrocarpa) Cypress (Hesperocyparis sp.)* California juniper (Juniperus californica) Rocky Mountain juniper (Juniperus scopulorum)*
Hesperocyparis glabra was scientifically described by George Bishop Sudworth in 1910 with the name of Cupressus glabra. [2] [5] In 1966 the botanist Elbert Luther Little published a paper where he argued that it was a subspecies of what was then Cupressus arizonica. [2]
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It continued after the reclassification of new world cypress species to Hesperocyparis in 2009 with David John de Laubenfels (1925-2016) arguing for its classification as a subspecies of Hesperocyparis arizonica. [2] The closest relatives of H. montana according to genetic analysis are Hesperocyparis forbesii and Hesperocyparis guadalupensis ...