Definition of Helmetflower

• a herbaceous plant of the genus Scutellaria which has a calyx that, when inverted, resembles a helmet with its visor raised
• any of several orchids of the genus Coryanthes having racemes of a few musky-scented waxy flowers with a helmet-shaped lip process
• a poisonous herb native to northern Europe having hooded blue-purple flowers; the dried leaves and roots yield aconite