I call these my lesser blooms because they are not as showy as other plants. These plants are also smaller in size, but they are lovely in their own ways. Some are also neglected by butterflies, but there are other insects which prefer them. I guess just like catterpillars which are very host specific, some insects are host specific too of their nectar sources.
Above are the blooms together with the leaves. We use it as hedge in the sidewalk, and when growing profusely retains the soil from being eroded during heavy rains.
I also love the tubelike flowers of this Seemania sylvatica. However, it is easily affected during the dry season, and one of the first species to go to plant heaven!
Sanchezia speciosa is mainly grown for the very dramatic colors and patterns of the leaves. It produces tube-like blooms with very long filament. Taken singly they are lovely too, but when all the tops are producing these spikes, they look so disorganized. So, I pinch most of the inflorescence when they are still very young.