Feuilles : [feuilles cloisonnées], noueuses, très longues, cylindriques.
Leaves: compartmented across blade 2-3 mm wide, linear, sub-terete, with obvious, horizontal joints; basal scales few, brown.
Distribution outside France: ?
Fruit : fusiforme, environ 3 fois plus long que large
Fruit: Capsule 3-0 x 1-8-2-0 mm, [fruit not narrowed to a small beak, c.f. J. articulatus.] ovoid, mucronate or apiculate, nearly half as long again as appressed perianth-segments; seed 0.5 x 0.2 mm, obovoid or pyriform, with an acute base and a shortly crested apex.