Morphologically it can be identified by checking grayish-brown body marked with large spot of oval shape. It is found in moderate to high elevations and assumed to be uncommon in Indian range.
New born- 20cm.
Averge length- 100cm.
Maximum length- 187cm.
Laterally flattened, long and thin body. Scales smooth, long shaped and obliquely arranged. Top dorsal scales along vertebra larger than side scales. Dorsal color grayish-brown entirely. Two series of asymmetrically arranged, large, more or less oval shaped, solid blackish or dark brown spots found in whole dorsal body. Another series of smaller but equally prominent spots found on side dorsals touching belly.
Belly grayish-brown or whitish with dark brown spots. Subcaudal scales paired in zig-zag manner.
Head triangular with rounded edge; clearly broader than neck. Ground color similar to dorsal body. A bold arrow shaped mark of dark brown found on the top of the head which starts from snout and covers whole of parietal region. A clear dark postocular streak starts from posterior of eyes and reaches to angle of mouth. Large eyes with vertical pupil.
Long and thin tail typically like other arboreal snakes with pointed tip. Dorsal body patterns visibly present.