Yup. Hognose.com lists false cobra as an alternate name for the spreading adder, "COMMON NICKNAMES Puffing adder, spreading adder, false cobra, death adder."On 2003-02-07 19:08, Holt wrote:
As far as snakes go; "if it rattles, it's a RATTLESNAKE,...if it doesn't, it's a COBRA!!"
http://www.hognose.com/pages/species/east.htm
http://www.hognose.com/pages/species/plains.htm