Indian Teasel, an introduced, invasive species, has been added to the USWildflowers database (01/22/2014.) Scientific name is Dipsacus sativus.  It  is also known by the common names Teasel, and Fuller’s Teasel.  Photo below was taken in Botetourt County, Va, on August 23, 2013.   Go to the Indian Teasel detail page for more information.

Indian Teasel – Dipsacus sativus