Cyperus blepharoleptos is a sedge of the family Cyperaceae that is native to the Americas, Caribbean Islands, and Africa. A common name for this species is Cuban bulrush.

This species of Cyperus was named by German physician and amateur botanist, Ernst Gottlieb von Steudel, in 1854.

It grows to a height of 0.30–0.91 m (1–3 ft). Its stems are sharply triangular and smooth and the leaves grow from the base of the plant. The leaves are narrow and ribbon-like; 6.4 mm (0.25 in) wide and 0.91–1.22 m (3–4 ft) in length, with the leaves often longer than the stem. The inflorescence occurs at the top of the stem. Each stalk is topped by a dense, spherical head, about 19 mm (0.75 in) in diameter. The heads containing numerous reddish-brown spikelets, which are spiral and overlapping. The fruit is an olive nutlet about 20 mm (0.8 in) in length.

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