Thanks. I'm comfortable with this as a current solution. I'll update my database to reflect this updated information.
I just checked The Plant List, and the data there has changed since I last accessed it, When I added this plant to my personal database a year or two ago, I had researched it fairly thoroughly, and 'Marginata' was simply a color form of A. angustifolia. I should have looked again, but in the back of my mind, I already "knew" what it said Times have changed.
I hate it when what we know is no longer true! In the future I'll check at least The Plant List and The Catalogue of Life before I open my mouth.
Thanks for digging into this can of worms I opened.
