Both lips give the flower as a whole a trumpet shape. The lower lip encloses the column (merger of the stamen and style) at the base, and there are also two white, glossy, round, nectar-secreting glands, each with a ring of papillae around their base.
The flower's overall shape is trumpet-like due to both lips. The lower lip encloses the column (fusion of stamen and style) at its base, and there are two white, smooth, round, nectar-secreting glands with a ring of papillae around their bases.