Con de amor--- Cuban name for WHAT ?

[Stefan Berge]

My father has mentioned a plant that grows on Cuba (and in Florida) which
they used to call  "Con de amor" (or similar, he didn´t tell me how to
spell it).
I wonder --- is there anyone out there who knows what plant this might be ?
(It is a not a plant you normally has indoors, in his days it was
considered a weed.)

If you know, please tell me ! (If you know the latin name, it´s even
better)   :-)

/Stefan Berge, Sweden.
(E-mail valutron at algonet.se)