[The Borage Family East of the Cascade Mountains of Oregon and Washington]

The photo at left shows a close-up of the irregular corolla of viper's bugloss as seen at the Painted Rocks trail along the lower Little Spokane River.........June 1, 2008. The photo at center shows a close-up of the flower bud and long, narrow calyx lobes of viper's bugloss as seen at the Painted Rocks trail along the lower Little Spokane River.........June 1, 2008. Note the numerous hairs on the outer surface of the corolla. The photo at right shows viper's bugloss as seen at the Painted Rocks trail along the lower Little Spokane River.........June 1, 2008. Although attractive, this species is a troublesome, very invasive weed introduced to Spokane County in about 1948.

These photos show the late fall appearance of viper's bugloss as seen along the Centennial Trail about a mile northwest of the Bowl and Pitcher at Riverside State Park.......November 5, 2023.