I love the oldies!
That smooth tailored form is so archetypal of 'iris' in my mind from childhood--it was always such a thing on 'decoration day' to cut the stalks and adorn the graves with coincidentally timed beauty and fragrance of garden iris back in the day, that's what is ingrained in my psyche as representational of iris.
I have many. Here are two faves:
My indestructible dirty yellow
will always have a place here, because it came with the house and survives all the challenges of the crappy real estate I let it have, and more importantly, it has divine fragrance!
and
early and fragile, but so exquisite in its simple perfection--it's just not spring without a blast from the past