1) Caryophylloid dicot genus 2) Genus allionia 
Allionia, commonly known as windmills or trailing four o`clock, is a genus of two species widespread in the western hemisphere. They are unusual in their blooms, which actually consist of three separate flowers appearing to be a single flower. The plants are finely pubescent annuals or short-lived perennials, with trailing stems up to a metre in ....
[n] - small genus of chiefly American herbs
genus Allionia noun small genus of chiefly American herbs