Schoenoplectus tabernaemontani is quite variable in appearance, thus explaining the long list of synonyms that have been created over the years.

It is a perennial herb producing dense stands of many narrow erect stems reaching 1–3 m (33–100 inches) in height.

The inflorescence is generally a panicle of spikelets on long, thin branches which spread, arch, or droop.

A cultivar of this species with bright horizontal white or yellowish stripes, S. tabernaemontani 'Zebrinus', is sold as an ornamental plant for water gardens and landscaping.

[7] In Hawaii - known as ‘aka‘akai, kaluhā, nānaku - its stems are made into floor mats.