1. helmetflower, skullcap

a herbaceous plant of the genus Scutellaria which has a calyx that, when inverted, resembles a helmet with its visor raised

Synonyms

• skullcap

2. helmet orchid, helmetflower

any of several orchids of the genus Coryanthes having racemes of a few musky-scented waxy flowers with a helmet-shaped lip process

Synonyms

• helmet orchid

3. aconitum napellus, helmet flower, helmetflower, monkshood

a poisonous herb native to northern Europe having hooded blue-purple flowers; the dried leaves and roots yield aconite

Synonyms

• aconitum napellus
• helmet flower
• monkshood