American Hogpeanut

This is just the plant you wanted to learn about today.  You will soon be seeing it again, growing all over the forest floor and twining itself around anything that can give it support.

Up until now, I have been mistaking this plant for a common violet!  It is actually an amazing entity.  It produces two different flowers, and two different seeds.

If you take a moment to look at the leaflets in this photo, you will probably be able to identify this plant when you see it again in the wild.

Each compound leaf has three leaflets with sharp tips and asymmetrical bases.  You can see a kind of bulge on the base of the leaflets in the photo above.  And the middle leaflet of the three is larger, with a longer stem.

This plant's name is a perfect example of how so much scientific information can be packed into a couple of words.  Quoting from gobotany.newenglandwild.org we learn the following:

"The genus name is from the Greek amphi (of both kinds) and carpos (fruit) and refers to the two kinds of fruit.  The seeds of the upper fruit are inedible, but those from the underground fruit are edible when boiled.  Birds feed on the seeds of both kinds of fruit.  Hogs eat the seeds of the fruit below ground, hence the plants (sic) common name."

Many thanks to my friend Bryan R. (from Wood Badge), who helped me successfully identify this plant when it was driving me crazy by being so familiar and yet so anonymous!