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.
pterostylis属的任何一种兰花，基生莲座叶丛，花绿色、常有紫色、褐色或红色条纹，萼片背部向内弯曲成盔状。
Leaves alternate or sometimes basal leaves forming a rosette.
有时的叶互生或基生叶形成一莲座丛。
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