Nerium oleander a large evergreen shrub with milky juice found in the Himalayas from Nepal westwards to Kashmir up to 1950 m and in upper Gangetic plain and Madhya Pradesh; it is found as an escape in many other states.  The plant attains a height of 3mt. Leaves mostly in whorls of 3 sometimes 2, linear-lanceolate, acuminate, coriaceous; flowers white, rose or red, in terminal cymes, fragrant; fruit a follicle, 15-23 cm. long, connate; seeds numerous, small, tipped with coma of light brown hairs. The plants are almost free from pests and diseases and untouched by cattle and goats, due to their toxicity. In India they are thus the most favoured plants for the road dividers, where a plant has to withstand heat and dust, and little water. There are single and double forms in white, pink and red.

Nerium oleander a large evergreen shrub with milky juice found in the Himalayas from Nepal westwards to Kashmir up to 1950 m and in upper Gangetic plain and Madhya Pradesh; it is found as an escape in many other states.  The plant attains a height of 3mt. Leaves mostly in whorls of 3 sometimes 2, linear-lanceolate, acuminate, coriaceous; flowers white, rose or red, in terminal cymes, fragrant; fruit a follicle, 15-23 cm. long, connate; seeds numerous, small, tipped with coma of light brown hairs. The plants are almost free from pests and diseases and untouched by cattle and goats, due to their toxicity. In India they are thus the most favoured plants for the road dividers, where a plant has to withstand heat and dust, and little water. There are single and double forms in white, pink and red.