Resembles Chenopodium album

I agree.

Lambsquarters (Chenopodium album), thanks!

"lambsquarters is a highly nutritious and healthy addition to the diet. The raw greens (leaves and young stalks) can be used in salads, smoothies, and juices.

Some chemicals in the plant (saponins in the seed, and oxalates, nitrates and sulfates in the leaves) are mildly toxic if eaten often or in large quantities, but they can be easily removed by cooking.

The plant is loaded with vitamin A (11,600 IU per 100 grams of leaves), which is higher than in spinach, and about 2.5 times more than in kale. It is rich in other vitamins, minerals (particularly calcium), protein and fiber. Compared to spinach, lambsquarters has about 2 times more vitamins B1 and B2, and 3 times more vitamin C and calcium."

Anyone ever tried eating this? Says it's very nutritious if cooked, so now I'm tempted to give it a shot?

I eat it often, as greens or in soups or stir fries, salads, pickled, on pizza whatever. It's delish.😋