This is a re-post from October 2012, but the information is still valid and important.
Japanese stilt grass, an annual non-native plant that is invading many U.S. regions, is entering its final maturity stage in Connecticut landscapes. Tiny flowering units that will form the seeds for next year's crop are emerging from each stalk. In Connecticut the time to tend to Japanese stilt grass is NOW!
As a professional a garden coach, designer and maintainer, I am frequently asked to identify plants that have 'just appeared' on a property. When unsure of an identity I grab a couple of photos and head for two websites, The Connecticut Botanical Society and Go Botany. I have yet to come away without a positive ID.