spathe

The striped spathe in some species of Arisaema bears a curious resemblance to the head of a cobra uplifted to strike.

The whole of the spadix is surrounded by a large bract or spathe which is contracted a little distance above its base.

Aquatic, with the aspect of sea-weeds or mosses, with minute naked flowers from a spathe-like involucre.

Aquatics, with dicious or polygamous flowers from a spathe; outer perianth calyx-like, the inner sometimes wanting.

Aquatic, with more or less irregular perfect flowers from a spathe; perianth corolla-like.