hi guys. We normally hunt rice but this year we are fallow and while I know how to identify smartweed and other duck food I've heard a number of different theories on what this is. Located in California Central Valley. Below are pics of the same plant dried out and others with water on it. As soon as we threw water on it it greened right up. In the fields that were owed it greened up and even re-headed out after flooding it with a few inches of water. Thoughts? Watergrass?