Name: Aponogeton crispus / ulvaceus / undulatus / rigidifolia
Size: twice as long as half of it.
Number: a cartographer's dozen
Sex: I can't assume a monocot's gender.
Price or a ballpark figure: half a day's pay
Shipping available? not from the east
Photos: I will provide them once planted, though would like to see yours too
Cheers