Cyperus acuminatus
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| Cyperus acuminatus | ||||||||||||||
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| Cyperus acuminatus Torr. & Hook. ex Torr. |
Cyperus acuminatus is a common species of sedge known by several common names, including tapertip flatsedge and pale umbrella-sedge. This plant is native to North America, where its distribution spans the continent, except northern Canada and southern Mexico. It is found in wet areas from large rivers to roadside ditches. This is an annual plant with a paper-thin stem approaching 40 centimeters in height at maximum. It may have a few thin leaves near the base. Its spherical inflorescence is one to two centimeters wide and contains several spikelets each a few millimeters long. Each spikelet has a flat layer of flowers which yield oval-shaped achene fruits, each about one millimeter long.
