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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]
Members of Hesperocyparis were and still are placed in Cupressus by many authorities, but phylogenetic evidence supports a different affinity. A 2021 molecular study found Hesperocyparis to be the sister group to the genus Callitropsis (containing only the Nootka cypress), with this clade being sister to the Asian genus Xanthocyparis, containing only the Vietnamese golden cypress.
Hesperocyparis arizonica was given its first scientific name and described by Edward Lee Greene in 1882 as Cupressus arizonica, placing it in genus Cupressus. [3] [5] This description was soon after disputed by Maxwell T. Masters who, in 1896, published a journal article where he said it should be considered a subspecies of Cupressus benthamii with the variety name of arizonica. [3]
Hesperocyparis — a genus of the family Cupressaceae. It includes western North American cypress species formerly classified within the genus Cupressus . Pages in category "Hesperocyparis"
Hesperocyparis stephensonii trunk — note the very subtle differences in bark color and texture from H. glabra and H. forbesii. 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.
Cupressaceae or the cypress family is a family of conifers.The family includes 27–30 genera (17 monotypic), which include the junipers and redwoods, with about 130–140 species in total.
Hesperocyparis macnabiana is an evergreen shrub or small tree, 3–12 metres (9.8–39.4 ft) (rarely to 17 metres (56 ft)) tall, with a spreading crown that is often broader than it is tall. The foliage is produced in dense, short flat sprays (unlike most other California cypresses, which do not have flattened sprays), bright glaucous gray ...
Hesperocyparis lusitanica, the Mexican cypress, cedar-of-Goa or Goa cedar, is a species of cypress native to Mexico and Central America (Guatemala, El Salvador and Honduras). It has also been introduced to Belize , Costa Rica and Nicaragua , growing at 1,200–3,000 metres (3,900–9,800 ft) altitude.