Their is hop hornbeam, and American hornbeam, or in my opinion, so as not to get the two mixed up I think it should called blue beech. Different species. HHB has a strong back, but can belly fret. Blue beech never seems to belly fret, but through time can lift splinters on the back. Both are good bow wood. HHB is more popular to bow builders. Were i live you can find the blue beech along creek bottoms, but is hard to find a knot free ,straight, and long enough piece for making longer bows, but works great for short plains style bows.