Hesperocyparis glabra, known as the Arizona smooth bark cypress or smooth Arizona cypress, is a conifer 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.

[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.

[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).