Yellow Walking Iris

Thank you, S Frazier. I better take a closer look at the plant then. T.martinicencis somehow looks like T.steyermarkii, too.

I have these all over my yard and they live up to their common name! They are very hardy. I have seen websites treat Trimezia martinicensis and Neomarica longifolia as synonyms. Others treat them as related but as different species. This page gives some distinguishing characteristics http://en.wikipedia.org/wiki/Trimezia#Di... . My plants seem to incorporate elements of both species!

Thank you, Daniela, for the ID suggestion.:)