Any and all palatable temperate perennial vegetables (Atleast Zone 7b)

I am making a list for the sake of writing a book on herbaceous temperate perennial vegetables. Right now I am still compiling my list and while I am not ready to post it just yet, I have 76 total perennial vegetables that meet certain criteria:

-Hardy to at least Zone 7b
-Herbaceous (Except for bamboo)
-Must be palatable
-And cannot include berries or herbs (Fruits can be included if they are herbaceous, like ground cherries)

If y'all have any odd perennial vegetables that meet these criteria, then please post them with their scientific names.

My main goal is for the information to provide the individual with information on lower input food sources, and by proxy less dependence on agencies to provide yearly seed, fertilizer (Non-permie or organic), and food markets. The pandemic is a prime example of how commodities can be ravaged pretty quick.

Believe it or not, garlic.

I have a garlic patch that was neglected for a few years due to medical issues. I assumed it died. Then last year when I went to plant a tree in that area, I discovered that the garlic had not only survived, it thrived! The individual bulbs were so tiny they looked like scallions, but the plants were packed so tightly together that they choked out all the weeds. And the patch produced so many scapes, I was able to use those in place of regular garlic for most of the year. I still have some dried scapes left. I run them through a grinder whenever I need garlic powder.

I'm working on expanding this idea. Last fall I planted 5 different varieties of garlic with the intent of leaving them to go feral. We'll see if it works!

Do you have prickly pear on your list?  We just made a bunch of nopales pickles last night. The pickles are great on tacos.  There are varieties hardy for different zones, Eastern goes as low as zone 4 or 5 I believe.

Also, what do you mean by "Fruits can be included if they are herbaceous, like ground cherries"?

Egyptian Walking Onions, Potato Onions and Asparagus.

Sochan.   Rudbeckia laciniata.

Prolific,  delicious, and beautiful.   If you like spinach and parsley you will love it.  It's like a spinach with a hint of parsley flavor (to me).   I use it anywhere I'd use spinach.  It's also one of the earliest things to come up and give you harvests early spring.

Late summer/ fall is has loads of beautiful tall yellow flowers that pollinators and finches love.   Good stuff.  It does spread quickly, but also pulls up easily if you want less of it or to share.