[3] The northernmost stand, in Orange County, which comprises a large area on the upper limits of Coal Canyon and on Sierra Peak in the Santa Ana Mountains, burned in a 2006 wildfire.

[2] In 1970 Elbert Luther Little published a paper where he argued that it was insufficiently distinct from Cupressus guadalupensis and therefore should be a variety with the name var.

The 2009 publication by Jim A. Bartel and others moving most of the North American species to a new genus Hesperocyparis is the proposal that found most acceptance.

[7] Hesperocyparis guadalupensis is endemic to Guadalupe Island off Baja California, two hundred fifty miles away from any H. forbesii stands.

A Tecate cypress planted at the San Francisco Botanical Garden is showing vigor and produces viable cones at forty years of age.