I don't know which species, but it gets about 18-30", and the leaves are mostly straight with a slight twist. I recently "flat-topped" it to let more light get down to the bottom, so some leaf tips are a bit ragged, but the new leaves grow QUICKLY. I'm asking $12 for a dozen plants (price includes priority shipping). PayPal only, no cold packs. Baby plants won't be counted, but you'll likely get some.
Here are pics; I got some close-ups so you can see the cut tips.
By the way, high doses of Flourish Excel will harm this plant.