paulalivingstone as described in "Watson, L., and Dallwitz, M.J. 1992 onwards. The families of flowering plants: descriptions, illustrations, identification, and information retrieval. Version: 25th November 2009. http://delta-intkey.com’." http://delta-intkey.com/angio/www/graminea.htm they state that the poaceae has: Leaves evergreen, or deciduous; minute to large; alternate; nearly always initially distichous (very rarely spiral — Micraira, the Orcuttieae); flat, or folded, or rolled, or terete (rarely); ‘herbaceous’ (usually), or leathery, or membranous (rarely); sessile, or petiolate; sheathing. Leaf sheaths tubular; with free margins, or with joined margins. Leaves not gland-dotted; without marked odour (usually), or aromatic (occasionally); simple. Lamina entire; setaceous, or acicular, or linear to obovate; parallel-veined (usually), or pinnately veined to palmately veined (rarely); without cross-venules, or cross-venulate. Leaves nearly always ligulate (though the ligule is often reduced to a fringe of hairs or even to papillae does that help?
