About two years ago after a trip to Hong Kong I became a fan of pitaya. Soon there after I probably had "sucker" written on my face as every garden sale I went to I would buy every $2 piece of pitaya/ dragon fruit I saw. Out of four plants, in 3 years I only saw one flower and that became a fruit. I never got to eat it as it went bad before I realized it. So I finally did research. So now I have a collection of several dragon fruit cultivars and a few Peruvian Apple Cacti in my collection. So now to my question.
This year looks to be a great year. Several of my dragon fruits are touching the top of my fence and even hanging over. A sign of good fruit, I'm told. I even have several I bought in October that are now halfway up the fence. But while cleaning up some weeds and mulch I found this oddball pitaya I picked up at some garden club sale that doesn't look like anything else I have growing.
First of the cactus is much more flexible than all the other dragon fruits in my yard. It's a thin cactus not even an inch wide. It also has only four ribs and they form a perfect cross. There are no spines to speak of. Instead it has what I would call hairs 1/4 inch long, 5 from each point where the spike would be. It's only a foot long right now but I swear it's grown that in the last month.
I know it's hard to identify now, but what should I be looking for to identify what it is? Is it the fruit that really defines it or the flower? Is there something else?