Unidentified Florida Native In My Garden

[IncurablePlantHead]

I don't know for sure if its a Florida Native, but I was told it was when I received it about 2 yrs ago. It bloomed this year in late spring. I snapped a couple of shots and forgot about. Now it's bothering me for identification. Anybody know it? The vegetative part of the plant, not photographed, has strapped leaves with a pronounced pseudobulb. It is growing at the base of a natve palm, Thrinax morrisii.

I've added a pic of the actual plant.