What is a name of a place; more broadly, a name, as in the binomial name of a plant, based on, or derived from, a place name, or based on the location of the thing named called?

toponym — A name of a place; more broadly, a name, as in the binomial name of a plant, based on, or derived from, a place name, or based on the location of the thing named. (Webster's 1913.)