قضقَضْقَاضٌ, (K,) and some say قَصْقَاصٌ, (TA,) The أُشْنَان of Syria: (K, TA:) or the green, and lank (سَبْط), thereof: (Ibn-'Abbád, TA:) or a species of trees of the [kind called] حَمْض, (AHn, K, TA,) slender and yellow. (AHn, TA.) See فِرْسٌ.