Which variety of Gleditsia is known as Thornless Honeylocust?

The variety known as Thornless Honeylocust is Gleditsia triacanthos var. inermis. This specific variety is valued in landscaping because it lacks the thorns that are characteristic of other varieties of Gleditsia triacanthos, making it safer and more aesthetically pleasing for urban environments and gardens. The thornless trait also makes it easier to maintain and care for, as it reduces the risks of injury for both people and animals.

Other options provided are different plant species altogether. Cupressus arizonica is the Arizona Cypress, Ilex x attenuata 'Fosteri' is a type of Holly known for its columnar shape and attractive appearance, and Diospyros virginiana refers to the Persimmon tree. Understanding the characteristics and uses of Gleditsia triacanthos var. inermis in comparison to these other species highlights its suitability for various landscaping needs, thus reinforcing the identification of it as the Thornless Honeylocust.