stavesacre
Concise Oxford English Dictionary © 2008 Oxford University Press:
stavesacre /ˈsteɪvzeɪkə/
▶noun a southern European larkspur whose seeds were formerly used as an insecticide. [Delphinium staphisagria.]
– origin ME: via L. from Gk staphis agria ‘wild raisin’.
'stavesacre' also found in these Oxford entries:

