Go on amazon by a grass identification book. the easiest way is to have the flower structure, probably not this time of year though. also usda plants, this is one of the best resources if your in the states. also a google image search.....trip to library and get some field guides there........
as a biologist I can tell you not all specimens will show perfect characteristics. Looking at the i.d. guide linked here i see almost no Phalaris on the first page.....theres brome grass(pick up a leaf and look threw it....will be a w or a v shape in the leaf......boom brome grass species....easy id. Foxtails have one solid column of tightly held florets.
anyways, many species of grass have hairs in the membranes or whatever. to tell the foxtails apart you go by the length of these hairs. But I have seen foxtails with no hairs!!!!! when there should have been, good thing it was in flower, or I would have mis-identified it, if I could have at all.
http://www.amazon.com/s/...words=grass+field+guidesthe first two books I have used and are great. It does takes a while to learn the terms, and figure out how to use them. But if I were to try to identify any grass in the USA, these would be where I would start.
No amount of DMT is worth spreading an invasive species. So please be careful when you plant un-native seed.
Remember, if the women dont find you handsome.....they might as well find you handy.