Greenhoods are divided into three groups depending on the position adopted by the lateral sepals.
Sepals upright
Sepals recurved
Sepals down
Pterostylis – [terro-style-iss]
From pteros, a wing, and stylos, a style.
The wings are hidden out of view and prevent pollinating insects from escaping the flower without a packet of pollen or two.
Mouse-over to see the lip animation
