Yellow King-Devil Posted on May 17, 2012 by Axie Reply 6 to 40 inches tall. Like dandelions but satanic. Yellow King-Devil (Hieracium caespitosum) Share this:Click to email a link to a friend (Opens in new window)Click to share on Facebook (Opens in new window)Click to print (Opens in new window)Click to share on Pinterest (Opens in new window)