This species is characterized by an extension of the rostrals scales, the one of the males being more developed than the one of the female.
Its stoutness is about the same than Elaphe (Gonyosoma) oxycephala.
Coloration is rather variable. There are green specimens, the other blue ones or brown. The patern can be uniform or with black stripes on the back, on the anterior third of the body. In a general way, there is a black line beginning from the rostral to the back of the head passing under the labial scales. This line can extend on the blanks and that more or less to the posterior body according to specimens. The zone below this line is white or slightly yellow. They can also be clear green under the lower jaw.
Philodryas baroni doesn't have a very active venom, but prudence is required. The effects observed are limited to oedema accompanied by pains. One can also note a discolouration of the bitten zone, as well as a light paralysis of the member concerned.

Philodryas baroni has a relatively interesting diurnal behavior. It is a snake showing an intense activity the day and clearly preferring the higher part of terrarium.
Contrary to certain Philodryas, P. baroni shows only few signs aggressiveness or any. During handling, I never observed attempt at attack, nor of intimidation. However prudence remains of rigour.

Considering the size and the important activity of this snake, the terrarium must be large. A base of 100 X 50cm and one meter in height seems to be a minimum for an adult pair. Liana and plants can be use. Although I advise to use artificial plants, you can make a planted terrarium while using of Ficus and epiphyte plants, with branches or robust lianas like support. All that strongly fixed.
Philodryas baroni has a preferencial temparature of 26-28°C. The nocturnal temperature must be lowered to 20°C. Two to three pulverizations per week seem sufficient. With a light increase at the time of the moults to ensure a good elimination of the exuvie.
About the food, this snake is not difficult. The young snakes accept pinkies quickly. Personally, mine quickly accepted death one. My female directly takes what one presents to him with the grip, the male as for him needs a little time to catch the dead prey which is proposed to him.
On the preys given alive, I never observed particular reaction such as abundant bleedings, or any other obvious sign of envenimation.

This is an abstract from "Venomous reptiles of the western hemisphere" (Campbell & Lamar, 2004):

" In Argentina, a specimen 90cm in TL, bit a 22-year-old male herpetologist on the thumb but withdrew immediately. There was immediate slight burning pain with minimal local bleeding. Swelling was evident after five minutes ; after one hour the whole hand was swollen and there were petechial hemorrhages in the skin. Swelling progressed to mid-forearm level, and there were ecchymoses along the line of lymphatics up to the axilla. Recovery was complete within 48 hours (Kuch and Jesberger, 1993)."