This species can be distinguished by its bright, white margins on its slender, upcurved leaves.

The leaves grow in pairs, that each appear in a decussate arrangement (each leaf-pair at right angles to the previous one, rather than all in the same two distichous rows). Each leaf-pair is also strongly anisophyllous (one leaf is much larger than the other). The larger leaf of each pair has a notch at its base, and the other is very much smaller.

From seed; winter sow in vented containers, coldframe or unheated greenhouse

From seed; sow indoors before last frost

From seed; direct sow after last frost

From seed; germinate in a damp paper towel