Perhaps the best classic Iris I have ever seen amazing that it was never registered.
Description from the 1959 'Lloyd Austin World Famous Iris Color Guidebook'
BENTON OLIVE (Morris 1949) E-M 36" A very popular novelty in silvery-olive buff. I imported this from England as there is none like it in this country. A subtle new coloring proving very useful to arrangers. Enough green in its make-up to cause it to be used by every hybridiser working toward greens. Very good pollen. Sometimes blooms in Autumn.
Photo credit and copyright Sarah Cook