Why the rose in teeth when dancing the tango?

It has become almost a clich’e, when two people are shown dancing the tango, a rose is clenched between the woman’s teeth. Why is this, and where did the practice originate?

Regards
FML

From Tango Nova:

Bumped, as I’m curious, too.

Perhaps the early motion pictures?

Valentino era?

I was thinking early motion picture too, but the question remains “Why” did they do it…

FML

Have done quite a lot of ‘international’ (as opposed to Argentine) tango, and have never done so with a rose in my mouth, or indeed with any other flora in any other bodily orifice. I can’t imagine why anyone would want to. The thorns underneath, love, stick into your gums.

The movie patrons were sure to know no kissing went on. I’m thinking it was a must to ensure this was plain.

That makes sense to me, but if so it would’ve been a voluntary restraint, predating the Hollywood Production Code [1934].

where else is she going to put the rose?

While they dance.

Seriously.

The rose-in-teeth is also a cliché for the opera *Carmen, *which predates the Valentino era by several decades. So when did this association come about?

But was “rose in the teeth” in the stagings of Carmen before Valentino?