Hall s bulrush has been found in Atoka, Comanche, and Woods counties in Oklahoma. The factors leading ot the decline of Hall s bulrush are not understood. Like most wetland plants, the loss of wetland habitat is a potentially serious threat. More data are needed in order to formulate recovery recommendations. Leaves are few in number and clustered near the base of the culm.
Leaves typically form a tube around the culm.
Only a small portion of the leaf expands to form a blade. The other bracts are shorter and less conspicuous. They are ovate, taper to a tip at the apex and possess a distinct midrib. Bracts are greenish-brown turning to a wheat color with age. Flowers number 15 to 36 per spikelet.