These came up in a bed of flags (or ditch lilies or Tawny Daylilies). There are a few frilly edged ones, but these are pretty straight and severe looking compared to a normal Tawny. Shorter than a Tawny, maybe 20" stems.
TomH3787 Raleigh, NC(Zone 7b) Jun 22, 2012
Hemerocallis fulva 'Flore Pleno' (I think it may also be known as 'Kwanso').