Well why not? What's life without a little mystery?
Actually, I don't feel too very guilty as some grass identification books are expected to arrive tomorrow. My little library is growing and soon I'll set up a posting to list my tools. And maybe, I'll find identification a bit easier.
Included here is a closer shot of the briar's tendril and its grip on the grass's stalk. We'll soon be taking a closer look at these briars--they grow thickly and are well populated around the lake.