Senna obtusifolia
Sicklepod
FABACEAE
What an interesting plant, with its five petals and pods in the fall. The Sickle-shaped pods can be eight inches long.
The leaves are alternate and are pinnately compound. The seed pod resembles a sickle, thus the name.
The plant is poisonous and can grow to three feet or more.
It is native to tropical America.
Not really considered a weed, but a wildflower.