Source : Webster's Revised Unabridged Dictionary (1913)

Lithy \Lith"y\a. [See {Lithe}.]
   Easily bent; pliable.

   {Lithy tree} (Bot.), a European shrub ({Viburnum Lantana});
      -- so named from its tough and flexible stem.

Whitten tree \Whit"ten tree`\ [Probably from white; cf. AS.
   hwitingtre['o]w.] (Bot.)
   Either of two shrubs ({Viburnum Lantana}, and {V. Opulus}),
   so called on account of their whitish branches.

Source : WordNet®

Viburnum lantana
     n : vigorous deciduous European treelike shrub common along
         waysides; red berries turn black [syn: {wayfaring tree},
         {twist wood}, {twistwood}]