Perennial Pea

Perennial Pea
Lathyrus latifolius

Lathyrus latifolius is not native to North America, but it is planted in gardens and escapes. I've only seen it in very disturbed areas. It doesn't proliferate but can last a long time where it does get established.

It's a peculiar looking plant up close. The stems have wings. The leaves have a winged stem, two leaflets, and a bunch of tendrils at the end. The flowers are quite showy, almost gaudy.