It has long (for its size) pointed leaves with involute margins in the mid-section, before opening out to a point at the apex. The leaf base is broader and not papillose, giving a three stage effect. The leaves crisp up nicely on drying.
BBS field guide page
|The whole thing (or "habit")|
|Single leaf when wet and extended. c.2.5mm|
|Transition to papillose middle section|
|And pointy apex|