Lobelia cardinalis

two have photos
the difference is one has subsp. in the name and another has var.

I do not know what is the preferred name so I will let some one else decide

Thanks for catching this Cinda.

so is the answer to keep the most simple name or the one with the most photos?

I actually checked ITIS, The Plant List and Kew WCSP. They all agreed that Lobelia cardinalis is correct and the rest are synonyms, no subspecies, varieties or forms. Keeping the one with the most photos was just luck.

Thanks
Next time I will know where to check