North America Native Plant

Spectacular Flatsedge

Botanical name: Cyperus manimae

USDA symbol: CYMA4

Life cycle: perennial

Habit: grass

Native status: Native to the lower 48 states  

Spectacular Flatsedge: Arizona’s Mysterious Native Sedge Meet the spectacular flatsedge (Cyperus manimae), a native sedge that lives up to its dramatic common name—though perhaps more for its mystery than its garden presence. This perennial grass-like plant calls Arizona home, but don’t expect to find much chatter about it in your ...

Spectacular Flatsedge: Arizona’s Mysterious Native Sedge

Meet the spectacular flatsedge (Cyperus manimae), a native sedge that lives up to its dramatic common name—though perhaps more for its mystery than its garden presence. This perennial grass-like plant calls Arizona home, but don’t expect to find much chatter about it in your typical gardening circles.

What Makes Spectacular Flatsedge Special?

As a member of the sedge family (Cyperaceae), spectacular flatsedge joins the ranks of grass-like plants that often get overlooked in favor of their flashier flowering cousins. But here’s the thing about sedges—they’re the quiet workhorses of the plant world, providing structure and texture where other plants might struggle.

This particular species appears to be quite the homebody, with its native range seemingly limited to Arizona. That kind of restricted distribution often means a plant has very specific habitat requirements or simply hasn’t spread far from its original evolutionary stomping grounds.

The Reality Check: Growing Spectacular Flatsedge

Here’s where we need to have an honest conversation. While spectacular flatsedge might sound like the perfect addition to your native Arizona garden, finding reliable information about growing this species is like searching for a needle in a haystack. This could mean a few things:

  • It’s extremely rare in the wild
  • It has very specific growing requirements that make cultivation challenging
  • It simply hasn’t caught the attention of the horticulture world yet

What We Do Know

As a perennial sedge, spectacular flatsedge would theoretically offer year-round structure to a garden. Sedges in general are typically:

  • Tolerant of various moisture conditions (though many prefer consistently moist soil)
  • Relatively low-maintenance once established
  • Useful for adding texture and movement to plantings
  • Capable of forming colonies through underground rhizomes

Better Alternatives for Arizona Gardens

Since spectacular flatsedge remains elusive for home gardeners, consider these well-documented native Arizona sedges instead:

  • Desert sedge (Carex praegracilis) – drought-tolerant and widely available
  • Nebraska sedge (Carex nebrascensis) – great for wetter areas
  • Thread-leaf sedge (Carex filifolia) – perfect for dry, rocky sites

The Bottom Line

While spectacular flatsedge certainly has an intriguing name and native credentials, it’s currently more of a botanical curiosity than a practical garden choice. If you’re set on incorporating native sedges into your Arizona landscape, you’ll have better luck with the more readily available species mentioned above.

Sometimes the most spectacular plants for our gardens are the ones that are actually available, well-understood, and eager to thrive in our care. But hey, if you ever do spot Cyperus manimae in the wild during your Arizona adventures, consider yourself lucky to have encountered one of the state’s more mysterious natives!

Spectacular Flatsedge

Classification

Group

Monocot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Liliopsida - Monocotyledons

Subclass

Commelinidae

Order

Cyperales

Family

Cyperaceae Juss. - Sedge family

Genus

Cyperus L. - flatsedge

Species

Cyperus manimae Kunth - spectacular flatsedge

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA