1) Caryophylloid dicot genus 2) Genus hylocereus 
Hylocereus is a genus of cacti, often referred to as night-blooming cactus (though the term is also used for many other cacti). Several species have large edible fruits, which are known as pitahayas or dragonfruits. Whether Hylocereus is a distinct genus is uncertain {as of|2013|July|lc=yes}. ==Taxonomy== In the classification of the International...
[n] - genus of climbing or epiphytic tropical American cacti with angular stems and mostly white very fragrant flowers