Cryptocoryne crispatula var. balansae is the oldest known variety of Cryptocoryne crispatula. In the region it comes from in southern Thailand there are limestone mountains, and the water can be very hard. Like many other Cryptocorynes it needs to acclimatise before growth starts in earnest. In recent years a narrow-leaf variety called Cryptocoryne crispatula var. flaccidifolia has often been sold.