Iris monnieri is a broadleaf deciduous perennial bulb / corm / tuber with green foliage. In spring yellow flowers emerge. Grows well with sun and even moisture - low water. Does well in gritty soil. A good option if you're seeking something verticillium wilt resistant.
A beautiful yellow Spuria, monnieri is probably a hybrid between Iris orientalis and Iris xanthospuria both of which are native to Turkey; other authorities believe I. crocea may be involved, whatever it is an excellent garden specimen with an air of mystery about it. ZONE 5