Clean white standards over primrose yellow falls that are sharply accented by an arrowhead-shaped near-black signal.

From Wished for Child X I. kirkwoodii. This ¾-bred is unusually fertile for the type, although not as fertile as the ½-breds. An exceptionally gardenable plant, which passes that trait on to its offspring and has already proven valuable to me in work with the Triploid Route. 

The name is still another double-meaning, in that "Prim" is short for primrose and "Proper" describes its classic smooth, rounded form and prominent signal – but taken together they form a phrase that depicts the overall impression.  

For show aficionados, its ASI code is OGB+.