Hesperocyparis glabra
Species of conifer
From Wikipedia, the free encyclopedia
Hesperocyparis glabra, known as the Arizona smooth bark cypress or smooth Arizona cypress, is a conifer in the cypress family, Cupressaceae, native to the American Southwest, with a range stretching over the canyons and slopes in a somewhat wide vicinity around Sedona, Arizona. It is distinguished from Hesperocyparis arizonica by its very smooth, non-furrowed bark which can appear in shades of pink, cherry, and grey.[3]
| Hesperocyparis glabra | |
|---|---|
| |
| Male pollen cones | |
 | |
| Hesperocyparis glabra red bark peeling on trunk, Coconino National Forest, Arizona | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Gymnosperms |
| Division: | Pinophyta |
| Class: | Pinopsida |
| Order: | Cupressales |
| Family: | Cupressaceae |
| Genus: | Hesperocyparis |
| Species: | H. glabra |
| Binomial name | |
| Hesperocyparis glabra (Sudw.) Bartel | |
| Synonyms[2] | |
| |
It is often seen in cultivation, as unlike the Monterey cypress, it has proved to be very resistant to cypress canker.[4]
Taxonomy
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] Along with the other new world Cupressus species it was transferred to the new genus Hesperocyparis in 2009. At the same time the authors restored it as a species under its present name.[2][6]
As of 2024[update] Hesperocyparis glabra is listed as the accepted species name with no subspecies by Plants of the World Online (POWO),[2] World Flora Online,[7] and the USDA Natural Resources Conservation Service PLANTS database (PLANTS).[8]
