Cirsium vulgare, Texas style. The classic thistle, second-year growth (I mention them on my site eattheweeds.com -- in the archives -- and have a video about it on You Tube, search with eattheweeds .) Some thistles have just one blossom on top, others have multiple blossoms. The large shaving brush blossom makes this plant nearly impossible to misidentify. The part of this plant worth eating is the stalk, usually before it blossoms, still edible when blossoming but bitter and tough later in the season. Cut the plant off at the base, hold upside down and trim off the leaves. The leaves are edible but the spines are not so they are not worth trimming. Peel the stalk to get rid of the fibrous covering. What is left is edible raw but I think tastes better cooked for a few minutes, sliced and boiled. The base of unopened flowerbuds are also edible but not worth the work and aggravation. And if I remember correctly, the part you peel off can be used to make cordage. The dried top is excellent tinder. First year roots are edible as well. The plant's growth cycle is two years, root and leaves first year, stalk, flowers and leaves the second year. The spines make the leaves very time consuming to deal with because cooking does not soften the spines.