The term âhalf and halfâ shows up very frequently in cooking and baking recipes in the US, but it is not particularly well known outside of the US (or the term refers to something completely different). When it appears in a recipe, it sometimes generates a little confusion as to what it is.
Note that the purple passion vine (Gynura aurantiaca) is unrelated to the Passiflora species and is considered nontoxic to dogs, according to the American Society for the Prevention of Cruelty to Animals. Purple passion grows in USDA zones 10 through 12. 1  Dig This.
Passion flower (Passiflora incarnata). The passion flower is known by several names, some of them being maypop, and apricot vine. The name passion flower is actually very misleading; this flower has nothing to do with passion.