Complete flowers are made up of four parts, two of which, the stamen and pistil, are essential, while the other two, the calyx and corolla, are accessory.
This species has red, straight sepals, and a purple corolla.
There is a morphological correspondence between the length of hummingbird bills and the length of the corollas in ornithophilous flowers.
Strong positive correlations (r > 0.9) between anther height and corolla-tube length were found in both morphs.
The cotyledons and corolla of a plant are worked on by an expansive force, while the calyx and coronas are affected by a contractive force.