North America Native Plant

Spectacular Flatsedge

Botanical name: Cyperus manimae var. asperrimus

USDA symbol: CYMAA

Life cycle: perennial

Habit: grass

Native status: Native to the lower 48 states  

Spectacular Flatsedge: Arizona’s Elusive Native Sedge Meet the spectacular flatsedge (Cyperus manimae var. asperrimus), a native sedge that lives up to its dramatic common name—though you might have a spectacular time trying to find much information about it! This perennial grass-like plant belongs to the sedge family (Cyperaceae) and represents ...

Spectacular Flatsedge: Arizona’s Elusive Native Sedge

Meet the spectacular flatsedge (Cyperus manimae var. asperrimus), a native sedge that lives up to its dramatic common name—though you might have a spectacular time trying to find much information about it! This perennial grass-like plant belongs to the sedge family (Cyperaceae) and represents one of Arizona’s more mysterious native plants.

Where Does Spectacular Flatsedge Call Home?

This native sedge is endemic to Arizona, making it a true local treasure for Grand Canyon State gardeners. As a plant species native to the lower 48 states with such a limited range, spectacular flatsedge represents the kind of specialized flora that makes regional native gardening so fascinating—and sometimes challenging.

The Appeal of the Elusive

While detailed information about spectacular flatsedge’s appearance and growing habits remains frustratingly scarce in horticultural literature, we do know it’s a perennial sedge. Like other members of the sedge family, it likely produces grass-like foliage and small, inconspicuous flowers. The spectacular in its name certainly raises expectations, though whether this refers to its appearance, habitat, or simply botanical enthusiasm remains a delightful mystery.

Garden Potential and Challenges

Here’s where things get interesting (and a bit challenging) for native plant enthusiasts:

  • Rarity factor: Limited documentation suggests this may be an uncommon species
  • Cultivation mystery: Specific growing requirements aren’t well-established in horticultural sources
  • Native value: As an Arizona native, it would theoretically support local ecosystems
  • Sedge benefits: Most sedges provide wildlife habitat and erosion control

The Reality Check

Let’s be honest—spectacular flatsedge presents a classic native gardening conundrum. While supporting native species is always admirable, this particular sedge appears to be either very rare, very specialized, or simply under-studied. Without clear information about its growing requirements, availability, or even basic appearance details, it’s challenging to recommend for most home gardens.

Alternative Arizona Native Sedges

If you’re drawn to native Arizona sedges but want something more garden-friendly, consider these better-documented alternatives:

  • Nebraska sedge (Carex nebrascensis)
  • Inflated sedge (Carex vesicaria)
  • Other Cyperus species with established cultivation guidelines

The Bottom Line

Spectacular flatsedge represents both the excitement and frustration of native plant gardening. While we’d love to celebrate this Arizona native and provide detailed growing instructions, the current lack of horticultural information makes it more of a botanical curiosity than a practical garden choice.

If you’re determined to work with this species, connect with local native plant societies, botanical gardens, or university extension services in Arizona. They may have insights or locally-sourced material that isn’t widely documented. Just remember—sometimes the most spectacular thing about a plant is learning to appreciate the well-documented natives that are readily available and eager to thrive in our gardens.

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