Wax bean is a species that belongs to the phaseolus family and it is related with the dragon tongue beans and green beans and it is similar in taste to the yard long green bean. think half the reason people read this blog is because they can't believe it's called waxed bean.. I didn't realize it, honestly, until about 7 months into this project, when speaking to a college classmate at an alumni event, that waxed bean has some phallic connotation.