Dryophytes

Dryophytes is a genus of tree frogs in the family Hylidae. Most of the frogs live in North America, but some live in eastern Asia.
Description.
All frogs in "Dryophytes" are small and can climb trees. Most of them are green or gray in color. They have disks on the ends of their toes for climbing. The disks help them stick to the trees as they climb.
Habitat.
These tree frogs live in wetlands and in forests where the seasons change. They live on the ground and in trees.
Taxonomy.
Scientists have changed their minds about whether this is its own genus and how these frogs are related to other frogs:
Fitzinger first described (formally wrote about) this genus in 1843. In 1882 scientist George Albert Boulenger, moved it to the genus "Hyla", the true tree frogs. In 2014 Fouquette and Dubois wrote that "Dryophytes" was a subgenus inside "Hyla". In 2016, William E. Duellman and his team wrote that scientists should start using "Dryophytes" as its own genus again.
The true difference between frogs in "Dryophytes" and "Hyla" is where they live. Scientists do not think they have important differences in their bodies. "Hyla" frogs live in the Old World, which is Africa and Eurasia, and most "Dryophytes" frogs live in the New World, which is the Americas.
Only three "Dryophytes" frogs live anywhere but North America: "D. immaculata", "D. japonica", and "D. suweonensis" live in Asia.
Species.
The genus "Dryophytes" has 20 species of frogs in it.