Pelophylax kl. esculentus was Rana kl.esculenta
This is a medium size frog with males attaining about 10cm and females about 12cm. Features tend to be a combination of Pelophylax ridibundusand Pelophylax lessonae as a result of its hybridisation.
The upper surfaces of the body are more likely to resemble those of lessonae being light green to blue-green with irregular markings that are dark brown or black. The skin can be smooth or "warty". Some individuals can have a brownish back but this rarely extends to the head or flanks. Belly and undersides are extremely variable - commonly being pure white or white splashed with dark grey