Whenever I draw grass, or even lay in my yard I think of Durer's watercolor piece. Now granted he depicted dandelions, but to me clovers are the prettier version. Both flowers take over your yard - but a clover looks much nicer while doing so.
I'm too lazy to upload all five sketches, so I just included the one that started it all. This comes from my nightly ritual of bringing my own dog to bed - as he can not yet be trusted to not terrorize the cat all night long while everyone sleeps. And he is a great big unappreciative bed hog.