Same as this, maybe?

http://forums.gardenweb.com/discussions/3416873/is-this-a-weed

Is it growing in pine bark mulch? It looks to me to be similar to some little orchids I find growing in the mulched areas of my garden. Yours looks a bit larger than the ones I find though. Look for images of zeuxine strateumatica.

Thank you both for responding. Meg_w, your suggestion seems to be a good one. I googled images of zeuxine strateumatica and they certainly look like the plant in question. Comments from one writer in 2009 were: "The plant is considered rare, and places where it has been found growing are being cataloged."

Guess I'll let a few continue to grow and see what happens. It's supposed to have white flowers in the spring which are attractive to pollinators. The common name is soldier orchid or lawn orchid.

June