North America Native Plant

Florida Orangegrass

Botanical name: Ctenium floridanum

USDA symbol: CTFL

Life cycle: perennial

Habit: grass

Native status: Native to the lower 48 states  

Synonyms: Campulosus floridanus Hitchc. (CAFL24)   

Florida Orangegrass: A Rare Native Treasure Worth Protecting Meet Florida orangegrass (Ctenium floridanum), one of the Southeast’s most elusive native grasses. This perennial beauty might not be a household name, but for native plant enthusiasts and conservation-minded gardeners, it represents something special—a direct connection to the unique ecosystems of Florida ...

Rare plant alert!

Region: Conservation status by state

Status: S2: Status is uncertain but is somewhere between the following rankings: Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘

Florida Orangegrass: A Rare Native Treasure Worth Protecting

Meet Florida orangegrass (Ctenium floridanum), one of the Southeast’s most elusive native grasses. This perennial beauty might not be a household name, but for native plant enthusiasts and conservation-minded gardeners, it represents something special—a direct connection to the unique ecosystems of Florida and Georgia’s coastal plains.

What Makes Florida Orangegrass Special?

Florida orangegrass is a native perennial grass that calls the southeastern United States home. You’ll find it naturally growing in Florida and Georgia, where it has adapted to the region’s distinctive coastal plain habitats. As a member of the grass family, it brings that gentle, flowing texture that makes native grasses so appealing in naturalistic landscapes.

This plant goes by the scientific name Ctenium floridanum, and while it may not have many common names, its botanical identity tells an important story about our native flora.

The Conservation Reality: A Plant in Need

Here’s what every gardener needs to know: Florida orangegrass has a Global Conservation Status of S2, meaning it’s imperiled in the wild. With typically only 6 to 20 occurrences remaining and between 1,000 to 3,000 individual plants, this species is extremely rare and vulnerable to extinction.

If you’re considering growing Florida orangegrass, please only source it from responsible native plant nurseries that propagate from legally obtained seeds or divisions—never from wild-collected plants. Better yet, consider supporting habitat conservation efforts that protect existing populations.

Where Florida Orangegrass Thrives

This specialized grass has evolved for life in wetland environments. In the Atlantic and Gulf Coastal Plain region, it’s classified as a Facultative Wetland plant, meaning it usually grows in wetlands but can occasionally be found in drier areas. Think moist, sandy soils along wetland margins—the kind of habitat that’s become increasingly rare due to development and habitat loss.

Growing Florida Orangegrass: A Conservation Commitment

Given its rarity, growing Florida orangegrass isn’t for casual gardeners. If you’re committed to conservation and have the right conditions, here’s what you need to know:

  • Habitat requirements: Moist to wet sandy soils that mimic coastal plain wetlands
  • Climate needs: Likely suited for USDA zones 8-10, matching its native Florida and Georgia range
  • Garden role: Best suited for specialized native plant gardens, wetland restoration projects, or conservation collections
  • Maintenance: As a native species, it should require minimal care once established in appropriate conditions

Wildlife and Ecosystem Benefits

While specific wildlife benefits aren’t well-documented (another consequence of its rarity), native grasses like Florida orangegrass typically provide:

  • Seeds for native birds and small wildlife
  • Habitat structure for insects and small creatures
  • Erosion control along wetland edges
  • Important genetic diversity within coastal plain ecosystems

Better Alternatives for Most Gardens

Unless you’re specifically working on habitat restoration or have a deep commitment to rare plant conservation, consider these more readily available native grasses that offer similar benefits:

  • Muhlenbergia capillaris (Pink Muhly Grass) – stunning and widely available
  • Andropogon gerardii (Big Bluestem) – a tallgrass prairie classic
  • Sporobolus heterolepis (Prairie Dropseed) – elegant and fragrant
  • Local sedges and rushes for wetland areas

The Bottom Line

Florida orangegrass represents the fragile beauty of our southeastern wetlands. While most gardeners should choose more common native alternatives, this rare species serves as a reminder of what we stand to lose—and what dedicated conservationists work to preserve. If you encounter it in the wild, consider yourself lucky to witness one of nature’s increasingly rare treasures.

For those called to conservation work, Florida orangegrass offers a meaningful way to participate in preserving our native heritage. Just remember: source responsibly, grow thoughtfully, and help protect the wild populations that remain.

Florida Orangegrass

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

Poaceae Barnhart - Grass family

Genus

Ctenium Panzer - toothache grass

Species

Ctenium floridanum (Hitchc.) Hitchc. - Florida orangegrass

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