helmetflower(n = noun.plant) skullcap - a herbaceous plant of the genus Scutellaria which has a calyx that, when inverted, resembles a helmet with its visor raised;
helmetflower(n = noun.plant) helmet orchid - any of several orchids of the genus Coryanthes having racemes of a few musky-scented waxy flowers with a helmet-shaped lip process;