Posted on April 2, 2014April 11, 2014 by Rugs & MoreSoumak (soo-mack). Plant used to obtain mauve-blue color; also, a type of flat-woven rug, differing from kelim weaving in that the back is left unfinished so that loose ends of threads are clearly seen. Also sumac, sumack, sumakh. Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to print (Opens in new window)Click to email this to a friend (Opens in new window)