It's an amazing thing to walk down the street and to pick up a weed or a flower and eat it; it's a skill that I started off knowing little about, but have come to appreciate more and more. This episode of The Perennial Plate explores some of the common edibles that you may see around town or in the woods--and shows you how to cook some of the greens. (Check out the full recipe for day lily ravioli.)
Note: Before eating any wild edible, make sure you know what it is; double-check field guides before you eat.

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Daniel Klein: The Best Food in America
Daniel Klein: First Stop on the Real Food Road Trip
http://the3foragers.blogspot.com/
Now that I can identify lamb's quarters and wood sorrel too.... Mwahahaha!
BTW, the seeds of the caragana shrub (aka Siberian pea) are also edible.
A Field Guide to Edible Wild Plants by Lee Allen Peterson, and
Field Guide to North American Edible Wild Plants by Thomas Elias and Peter Dykeman.
Aside from people confusing Queen Anne's Lace with deadly poisonous Water Hemlock (QAL has a tiny, deep purple flower right in the middle of the umbrel of tiny white flowers and the umbrel often curves in where Water Hemlock umbrels usually curve out), it is also easy to confuse white snakeroot with boneset--snakeroot is toxic while boneset is a wonderful healing herb.
The Forager's Harvest by Samuel Thayer
He lives a foraging lifestyle and has a lot of great advise while remaining cautious.
Thanks for the info!
Thank, KDW
P.S. Young milkweed shoots look very similar to dogbane which is poisonous in quantity...if it tasted bitter and bad...DO NOT EAT IT!
I wouldn't eat a salad of them, but they aren't THAT toxic...
I learned a lot from this site:
http://www.eattheweeds.com/www.EatTheWeeds.Com/EatTheWeeds.com/Archive.html
I found out that I have several edible "weeds" in my yard.
Pretty cool.
☮