The iris flower close-up outdoors, purple iris flower on green b

''Iris douglasiana'' is a common wildflower of the coastal regions of Northern and Central California and southern Oregon in the United States. The Douglas Iris was first described by 19th century botanist David Douglas in Monterey, California. It grows mainly at lower elevations, below 100 meters , though it is occasionally found at heights of up to 1,000 meters . It is most common in grasslands near the coast; it is regarded as a noxious weed in pastures, because it forms clumps that inhibit other.. more