珍珠茅属（学名：Scleria）是莎草科下的一属。为一种多年生草本植物。

Scleria is a genus of flowering plants in the sedge family, Cyperaceae. They are known commonly as nutrushes. They are distributed throughout the tropical world, and some have ranges extending into temperate areas. There are about 200 species.

Plants of this genus are diverse in appearance. These are mostly perennial, but sometimes annual. Some have rhizomes. They produce solitary stems or clumps of many. They are a few centimeters tall to well over one meter. They have few leaves or many. The inflorescence is variable, bearing a single spikelet to over 100. Despite the variety, examination of the fruits and subterranean structures is required to distinguish species.