Monkshoods, members of the buttercup family, are attractive but dangerously poisonous plants.
They are native to Europe, but not North America. This one is a cultivated variety. Aconitum × cammarum,
from which this cultivar was developed,
was first described by Linnaeus himself.
Identification: Plants are up to 3′ (1 m) high, blooming
from early summer to early fall. Leaves are alternate, dark green, shiny, and deeply divided.
This cultivar has copious flowers that are white, outlined in blue-violet. Some are almost entirely
white, while these are predominantly blue. They appear from July to August.
Edibility: Poisonous All monkshoods are extremely poisonous,
especially the roots or green seedpods. They contain several diterpenoid alkaloids, including aconitine,
mesaconitine, napelline, and hypaconitine.
The poison can be absorbed through cuts or even directly through the
skin, so careful handling is essential. Symptoms include tingling and burning in the mouth and lips, abdominal
pain, excessive salivation, intense thirst, vomiting, diarrhea, headache, reduced heart rate,
paralysis, confusion, visual disturbances, and convulsions. Death can occur in a few minutes, or as much as 24 hours after
ingestion.
All monkshoods are extremely 
ID is uncertain 
