Iris Virginica

I have many irises, all rhizomatous, beardless, varieties, but they are all unidentified as they were dug up in the wild.  This variety is possibly Virginica, as identified from a friend who is an iris hybridizer.  These type of irises have rhizomes as rootstocks, close to or on the surface, or just below ground level, which produce linear to strap-shaped, sometimes curved leaves, nearly always in basal fans.  Each active rhizome produces one to several new growths each year, and this spread can continue indefinitely into large clumps.  Beardless irises have smooth petals on the falls.  Generally, beardless irises prefer well-drained, neutral to slightly acidic soil in full sun or partial shade.  Most of the varieties I have probably fall into Laevigatae irises, which require moist to wet, acidic soils, some even preferring standing water to grow well.  Flowers appear from late spring to early summer, and hardiness rating probably zones 3-9.