Braya fernaldii

About

Braya fernaldii commonly known as Fernald's braya is a small perennial plant belonging to the mustard family (Brassicaceae). It is only found in the limestone barrens along the northwestern coast of Newfoundland's Great Northern Peninsula. B. fernaldii is considered endangered with around 16 populations remaining along a 150 km stretch of coast. Among the four species of vascular plants endemic to the island of Newfoundland, it is one of them.

Summary from Wikipedia