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noungenus of terrestrial orchids of Australia and New Zealand and western Pacific
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Definition that contains pterostylis
- greenhood 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
- helmet orchid 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