By certain traits we may always know, with absolute certainty, a poison sumach when we find it.
One of this family is poisonous and is known as poison sumach.
poison sumach (Rhus vernix) is not the same as poisonwood, though sometimes the two are confounded.
Was it the light reflected from the glossy leaves of the poison sumach which overhung the path that made his cheek look so pale?
It is popularly known in the United States as "poison sumach," "poison dogwood" and "poison elder."