| Diurnal anthesis. |
Diurnal and/or nocturnal anthesis. |
Diurnal and/or nocturnal anthesis. |
| Corolla with vivid colors, often scarlet, red, or orange (very rarely purple). If corolla has non-vivid colors (yellow or white), it strongly contrasts with the calyx and/or floral bracts. |
Corolla yellow, white, blue-violet, or purple (very rarely red or orange), but with contrasting patterns. |
Generally non-vivid colors (principally yellow and white), rarely purple or orange corollas, but without strong contrast. |
| Lip or margin absent (if present, curved backwards), flower hanging with inclined orientation, zygomorphy frequent, less pronounced landing platform. |
Margin generally very expanded, pronounced landing platform. Actinomorphy and zygomorphy may be present. Flowers have different orientations. |
Actinomorphic flowers, principally oriented upwards. If margin or lip present, it forms a landing platform. |
| Pedicel may be elongated, and pedicel and inflorescence axis may be delicate. |
Pedicel and inflorescence axis robust or delicate. |
Pedicel short. Pedicel and inflorescence axis robust. |
| Exerted anthers and stigma. Pollen load deposited with precision on the pollinator. |
Pollen load deposited with precision on pollinators but more dispersed compared with ornithophilous morphologies. |
Exposed reproductive organs. Pollen load deposited more dispersedly on pollinators. |
| Mainly tubular and bilabiate flowers. Deep tube or spur, wider than intermediate flowers (wide enough to allow the hummingbirds’ beak to effectively enter the corolla tube). |
Urceolate, funnelform, and salverform flowers. |
Principally rotate- and brush-shaped flowers. If campanulate, generally shallow. |
