Anyone recognize this one? It's nothing I planted but I found it growing up behind the house in a neglected bed of weeds. It was a bit breezy today when I took these photos and I'm going to try to get better ones tomorrow but I thought maybe it would look familiar to someone. I've searched my Florida plant books and my first thought was possibly a variety of Rhexia; there are a few that grow here in Fla. but I couldn't find a match for these leaves. Growing on east side of my house in dry, sandy soil, a couple of feet from a man-made waterway.

Jewels of Opar (Talinum paniculatum)

Oh my goodness, Thank you so much Jay! I have photos in the database and didn't even recognize the plant! I thought it was long gone; I haven't seen it around since 2012 so what a nice surprise!

That flower is a dead give away for that genus!
I've only been introduced to them this year but they are pretty awesome little guys!

i agree, it is a very invasive plant;
just about every seed drop on the ground will germinate to a little plant and grow to a large plant.
thanks a lot for identify the plant.
Have good day.

Looks like Talinum fruticosum , as it has purple flowers.

http://tropical.theferns.info/...

I've not seen T. fruticosum in person, only paniculatum, but the pics I can find show a bigger flower and many less blooms per inflorescence on fruticosum.

T. paniculatum is native in SE US. T. fruticosum/triangulare is not, though is reportedly present in FL, on USDA.

Hi & welcome @Steve923 ! T. paniculatum can be vigorous and exuberant in ideal conditions, but can't invade its' native territory. In the case of the asked-about plant, assuming it is T. paniculatum, it is growing in a native location. Your profile does not say where you are, but if your location is one where this plant is not native and it is taking over an area, that would be invasive, as a technical term.