On the west coast, you all know that the 5 species of salmon are the staple.
Harvested, dried and smoked to this day by the thousands.
Single car garages become smoke houses, maybe 200 fish in a load.
Starchy aquatic root crops. Clams by the thousands.
Those were often shelled and dried, threaded together like beads for storage.
When I'm in the mood for it, I have a few "patches" of berry bushes that I harvest in July.
Cleaned, scaled and bagged for the freezer, I can pick more than 5lbs per hour Saskatoons = Amelanchier alnifolia.
That's in the city, along the river. Tarp on the ground, bend the bush over, strip it, do the next one.
Rough cleaning on a blanket.
It backfired badly out here in McBride. I dug up 8 quality Saskatoon bushes, various mountain side valleys, and planted them in my back yard.
The robins eat the individual berries as they ripen in each cluster. It finally dawned on me that these bushes are really
attractive because they are so uncommon here. Near the city or any river bottom land, the bushes almost grow side by side and the birds can't eat enough to notice.
By contrast, Vaccinium (blue berry) forms the understory in some forest patches, 3 different species, no less. As far as you can see.
You can pick enough wild strawberries to be useful. Great lawns of the things over a gravel or clay base.
However, their principal value was the tendril runners, used in tribal medicines. Wild raspberries we take for granted.
We've got 2 native species of Sorbus, what you would call Rowan. Damn hard winter when you see those berries finally eaten.
Honestly, working at it all day, every day, for all the opportunities, I'm not certain that I could harvest and prepare enough food to see me through a winter.
Has to be a co-operative effort. There's an estimated 30,000 cobs of corn/maize stored in Bat Cave, New Mexico.
Suggests to me that those people had the agriculture thing figured out 12,000 years ago.
Let's assume that I have a massive pit house and both heat and light are not issues at all.