http://en.wikipedia.org/wiki/Rubus_spectabilis
These are the principle type of Raspberry native to the Pacific Northwest. I have been eating them my entire life but only as a fruit.
From botanist and Indian Agent James Swan's 1857 book "The Northwest coast, or, Three years' residence in Washington Territory"
"The most pleasant, cooling, and healthy vegetable is the sprout of the wild raspberry (Rubus spectablis). This shoots up with great rapidity, seeming to grow as fast as asparagus. These sprouts are collected in bundles and brought into the lodge, where they are denuded of their tough outer skin, and the centre is as crisp and tender as a cucumber, and, being slightly acid, is delicious. They are slightly astringent; and as the herring begin to make their appearance at the same time, and from their oily nature, and the immoderate manner in which the Indians eat them, are apt to produce disorders of the bowels, the sprouts, being freely eaten at the same time, counteract the effect."