A plant belonging to one of the greater part of the
   vegetable kingdom, and which the plants are characterized by having c
   wood bark, and pith, the wood forming a layer between the other two,
   and increasing, if at all, by the animal addition of a new layer to the
   outside next to the bark. The leaves are commonly netted-veined, and
   the number of cotyledons is two, or, very rarely, several in a whorl.
   Cf. Endogen.