Funnily enough, what convinced me not to buy the Japanese roth grexes Sam was selling was not any allegation of impropriety on his part, but rather the photos of the "select" blooming plants for sale in Japan from the same grexes that Sam had.
Natiform. The word you're looking for is: "natiform."
And you're in luck because that pouch form is very common in hang. Just buy two or three and you'll get at least one (or two or three.)
I'd be much more worried whether the plant which eventually got to me was the same one I purchased. I'd have surreptitiously damaged the underside of one of the newer leaves in a way that would make it obvious if I was sent a fake.
It's the roots that matter. They need big root systems to bloom. A single fan should have at least 8 big, fleshy roots that completely fill a 2" x 3"tall pot. If they have that, they will bloom about a year from deflasking.