Cryptocoryne crispatula var. balansae

Narrow, hammered (bubbled) leaves are the main feature of the variety; several forms exist in the hobby, usually about 2 cm wide, though width ranges from 1.5 to 4 cm, and colour from green to bronze. It grows taller than 50 cm. It differs from the similar var. flaccidifolia (often sold as 'C. retrospiralis'): that one has narrower leaves, 0.5–1.2 cm, without hammering, but often with a wavy edge.

Medium to strong light is preferable — with enough light the hammered texture is strongly expressed; CO₂ speeds up growth but is not required. Calcium matters: when it is lacking, the leaves curl and deform. Conditions should be stable; with sharp changes, as with most crypts, the leaves may melt. Offshoots are strongest from old stands; underground runners spread well beyond the allotted space and need periodic trimming. Easy, growth moderate, CO₂ 5–40 mg/l, temperature 20–26 °C.

Background, tall tanks; in Dutch-style layouts a well-kept clump serves as a centrepiece and focal point, in nature-style it adds height to a horizontal piece of driftwood and sets off stones.

Originally described as a separate species, Cryptocoryne balansae — and that is the name it goes by in the hobby and the trade; it is now considered a variety of Cryptocoryne crispatula.