Since you hadn't gotten a response, and I'm not familiar with them, I did a little searching for you. Here's what I found:
"From October to January, during the flowering period, the distal third of its leaves becomes red. The inflorescence produces 1Ã¢â‚¬â€œ15 flowers per day over a period of 20Ã¢â‚¬â€œ25 d. The flowers are inconspicuous, greenish-white coloured, tubular shaped with a narrow opening, and the stigma is situated just above the anthers"
This is referring to plants in the wild, so I can't guarantee your house plants will be the same.
The inconspicuous flowers are pollinated only by hummingbirds, but since you aren't growing them for flower or seed, that probably doesn't matter.