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