a non-flowering iris
Jane McGary (Mon, 28 Sep 2009 13:08:36 PDT)

Rodger wrote,

Could it be Iris uniflora or Iris minuto-aurea? The latter in particular is
famous for not flowering. There
Another possibility is that it's one of the very dwarf forms of Acorus
gramineus. Some of these have been known to masquerade as irises,
the game only
being given away when a clever gardener persuades them to flower.

I think Kathleen's plant has leaves longer than those Iris species. I
have seen Acorus gramineus labeled "Iris" in a garden center. Another
possibility that occurred to me is one of the taller species of
Sisyrinchium, but they probably would be blooming.

Jane McGary