n. 宽叶香蒲, 纸莎草

Bulrush \Bul"rush`\ (b[.u]l"r[u^]sh`), n. [OE. bulrysche,
bolroysche; of uncertain origin, perh. fr. bole stem + rush.]
(Bot.)
A kind of large rush, growing in wet land or in water.

Note: The name bulrush is applied in England especially to
the cat-tail ({Typha latifolia} and {Typha
angustifolia}) and to the lake club-rush ({Scirpus
lacustris}); in America, to the {Juncus effusus}, and
also to species of {Scirpus} or club-rush.
※ ||

cattail \cat"tail\, Cat-tail \Cat"-tail\(k[a^]t"t[=a]l), n.
(Bot.)
A tall erect rush or flag ({Typha latifolia}) growing widely
in fresh and salt marshes, with long, flat, sword-shaped
leaves, having clusters of small brown flowers in a dense
cylindrical spike at the top of the stem; -- called also
{bulrush} and {reed mace}. The leaves are frequently used for
seating chairs, making mats, etc. See {Catkin}.
[1913 Webster + WordNet 1.5]

Note: The {lesser cat-tail} is {Typha angustifolia}.