Labellum and Gynostemium, Top
Fir River Road West of Hudson Bay
The exceptional petal of an orchid is called the labellum. Its margin is dilated to form the lamina. The stamens and pistil are fused in a structure called the gynostemium or column. The labellum and gynostemium are normally at an angle with respect to each other, but have been flattened in this photo.
Calypso: Answers to key questions in Budd's Flora and Flora of Alberta leading to this genus.