sentences:  The name was bestowed by Catholic missionaries of Alta California after native people introduced them to it.It was so abundant there that its name was also applied to the settler's town adjacent to Mission San Francisco de Asís as well as to the cove along San Francisco Bay upon which it was situated.The prominent island directly in front of the settlement also came to be called "Isla Yerba Buena" (at least as early as 1833, although it is not certain whether it was named for the settlement, the cove or directly for the herb.