The calyx is silky, without bractlets; its upper labium with a protuberant basis, is integral or weakly emarginate, the lower one is integral, almost twice longer than upper. Floral bracts are styliform, shorter than the calyx, early falling. The corolla is three times longer than the calyx.
The flower's structure has a soft texture, lacking appendages; its top lip protrudes with a noticeable base, either merged or slightly indented, whereas the bottom lip is fused and nearly twice as long as the top one. This characteristic is notable in relation to the leaf-like structures that resemble the pistil, which are shorter than the calyx and fall off early.