The frog has robust forelegs with large climbing disks on the front toes.

[4] The female frog lays eggs on the inside walls of water-containing plants called phytotelma.

[1] Gracixalus lumarius is an arboreal frog that is associated with relatively undisturbed montane evergreen and bamboo forest at elevations of 1,845–2,160 m (6,053–7,087 ft) above sea level.

Humans cut down the forests in the frog's habitat to establish large farms for coffee, tea, rubber, and other cash crops.

Scientists think that people might also catch the frog to sell as pets because of its color and beauty.

[1] Lumarius is the Latin word for "of thorns," here a reference to the frog's distinctive white tubercles.