Above you can see another common species here, PIPER MARGINATA. Piper marginata is one of few Piper species with leaves with several pronounced veins radiating from the petiole's point of attachment at the blade's bottom instead of having a single midrib extending up the leaf, with several secondary veins branching off it.

The most famous of all Pipers is Piper nigrum from tropical Asia. That's the plant from which black pepper is made. Peppercorns are dried Piper nigrum fruits. "White pepper" is made from dried Piper nigrum  fruits from which the ovary walls have been removed. Our Pipers don't produce fruits big enough to fool with.