helmet orchid
n 1: any of numerous orchids of the genus Pterostylis having
leaves in a basal rosette and green flowers often striped
purple or brown or red with the dorsal sepal incurved to
form a hood [syn: {helmet orchid}, {greenhood}]
2: any of several orchids of the genus Coryanthes having racemes
of a few musky-scented waxy flowers with a helmet-shaped lip
process [syn: {helmetflower}, {helmet orchid}]