Here is a Hibiscus relative not grown for its flowers. It has large, 12"+ roundish serrated, palmately lobed leaves with red petioles and veins. Leaves are a deep green and heavily spined making a nice color contrast. Flowers are in leaf axils, bright yellow with red epicalyx, abour 2" in diameter .
They do look somewhat begonia like, but the picture does not do it justice. The leaves are huge, very textured and spiney, and the deep green of the leaves with the red veins and petioles make it very colorful. Maybe not what most would consider beautiful, but certainly unique! It has buds forming, will add a pic of the flowers when they open-
I know how that goes .. I use an Excel file for mine and list Common and Latin names, Location, Condition, Numbers, In pot or ground, rooted cutting or grown from seed and whether or not they need to go into the greenhouse in Winter .. I inventory every spring when I take things out of the greenhouse. The first time you do it its a chore, but once you get the master list it's easy to update every year.