(Poaceae) form the second largest family of plants in Tasmania
(after Asteraceae), with 138
introduced and 128 native species in a total of 87 genera.
grasses are very diverse in habit and structure, but are
characterised by elongate, parallel-veined leaves with sheathing
bases and a distinctive inflorescence structure
. The leaves of almost all the species have ligules (a
membranous rim or line of thin hairs across the inner surface of the
leaf where the leaf blade joins the sheathing base).
Identifying grasses is difficult and depends on very
careful determination of the type of inflorescence and the structure and
composition of the spikelets.
The key to this family is still under development.