Meaning of helmet orchid

Definition of helmet orchid

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

Other information on helmet orchid

WIKIPEDIA results for helmet orchid
Amazon results for helmet orchid