This plant is very common in our houses, gardens, parks and offices.
The plant (Dumb Cane) is dangerous, so, please take care! http://www.blankees.com/house/plants/dumbcane.htm
The leaf of this plant causes itching if its sap (milk) touches your skin.
One of my friends almost lost her daughter who put a piece of the leaf of this plant in her mouth and her tongue swelled to the point of suffocation.