cooke

I need this book!

Thank you Linneaz! This type of euphorbia doesn't grow where I live so I never would have thought of that but you are exactly right!

It is most likely a biennial and will bloom this year. Then you will get a definite identification. Seve some seeds it makes or let it drop seeds on the ground. Biennials die after they flower.

What you have there with the spotted leaves and above ground bulb is Ledebouria socialis, Silver Squill. It is in the hyacinth family.

PS: let some seeds fall in the woods so you will have a steady supply of some blooming every year. They live only 2 years. If you had flowers this plant was 2 years old.

Looks like "Silver Dollar Plant" or "Money Plant" Lunaria biennis. If you leave the flower on, the seed capsules are round flat discs; green at first, drying to tan with papery coverings. Gently rub off the papery covers and you have a delicate silver disc, the size of a silver dollar. They are prized for dried flwoer arranging. You need to recognize the young plants so you can let them grow till the second year when they bloom, and don't be tempted to pick the pretty flowers or you won't have silver dollars.

You mentioned it's not mint. If there are herbs in the area it could be marjoram or oregano.

Products called Manage and Image are also supposed to kill nutsedge.

Other possibilities are Deutzia and white flowered loropetalum. Check out the photos here:
http://www.floridata.com/ref/L/loro_chi.cfm
http://www.mobot.org/GARDENINGHELP/PLANTFINDER/Plant.asp?code=V560

Clematis, "Nelly Moser"
http://www.finegardening.com/plantguide/clematis-nelly-moser.aspx

Ice plant, Delosperma
http://www.thelensflare.com/gallery/p_flower_5012.php (photo just like yours) Other varieties here:
http://www.picsearch.com/pictures/food%20!!%20drink/fruits/fruits%20gr-pe/ice%20plant.html
Delosperma nubigerum ( Yellow Ice Plant )http://www.backyardgardener.com/plantname/pda_933b.html
Delosperma congestum http://www.brighterblooms.com/product/yellow-ice-plant.html