Thin-petal Larkspur (Delphinium lineapetalum)
The monkshood we posted recently was named Aconitum delphinifolium, as its leaves resembled that of a delphinium, or Larkspur. At least a dozen larkspur species are found in the northwest, many of which contain delphinine, a toxic alkaloid that causes abdominal pain, nausea, and eventually death, not only in humans, but in cattle as well. We found a smattering of these, both lavender and white, on the ski hill outside Leavenworth, WA. This uncommon variety only grows in Washington, primarily in the Wenatchee Mountains where we found these.