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: 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]