Southern Beaksedge
Rhynchospora microcarpa
Found in swamp forests, maritime wet grasslands, wet pine savannas, marl prairies, strand swamps, cypress woodlands. Weakley, Flora of the Southeastern United States (2025), Florida edition What its natural habitat tells you
Native to Florida. How scores work Is it native here?
Profile 76%
- Height
- Up to about 3 feet
- Light
- Partial shade, Full shade, Full sun
- Soil moisture
- Moist to standing water
No photograph yet. Looking for an old drawing…
At a glance
- Life cycle
- Perennial
Not yet recorded · Spread · Leaves · Bloom
Bloom: NC species account not read yet.
Spread and leaves: no source found yet.
This plant is missing most of its facts, so Quercus is looking them up in old botany books.
Recorded in 61 Florida counties.
Natural habitats
Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.



Open, fire-kept longleaf pine stands over grasses and wildflowers on wet to moist sandy soil.
Also found with this plant
Wildlife whose habitat models include habitats this plant grows in, in Florida. Shared habitat, not food. 172 animals.
- Black-bellied Whistling-DuckDendrocygna autumnalis
- Bonaparte's GullChroicocephalus philadelphia
- Brewer's BlackbirdEuphagus cyanocephalus
- Canada GooseBranta canadensis
- CanvasbackAythya valisineria
- Caspian TernHydroprogne caspia
- Common NighthawkChordeiles minor
- Eurasian Collared-doveStreptopelia decaocto
- Eurasian WigeonAnas penelope
- Field SparrowSpizella pusilla
- GadwallAnas strepera
- Glossy IbisPlegadis falcinellus
- Gray KingbirdTyrannus dominicensis
- Great Crested FlycatcherMyiarchus crinitus
- Greater YellowlegsTringa melanoleuca
- Henslow's SparrowAmmodramus henslowii
- Hooded MerganserLophodytes cucullatus
- KilldeerCharadrius vociferus
- Least BitternIxobrychus exilis
- Least TernSternula antillarum
- Lesser Black-backed GullLarus fuscus
- Long-billed DowitcherLimnodromus scolopaceus
- MallardAnas platyrhynchos
- MerlinFalco columbarius
Who uses this plant?
4CaterpillarsGenus host records with ranges including FL
Genus host records with ranges including FL · Rhynchospora
- Euphyes dukesiDukes' Skipper
- Lethe appalachiaAppalachian Brown, Appalachian Eyed Brown
- Synchlora frondariaSouthern Emerald
- Diploschizia habecki
4BeesSoutheastern regional records
Southeastern regional records · Rhynchospora
Individual names are not available yet.
Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
5BirdsRecorded genus food-resource interactions; not a state feeding claim
Recorded genus food-resource interactions; not a state feeding claim · Rhynchospora
- Dendrocygna bicolorFulvous Whistling-Duck
- Lagopus lagopusWillow Ptarmigan
- Meleagris gallopavoWild Turkey
- Rallus elegansKing Rail
- Tyrannus tyrannusEastern Kingbird
Direct food only: birds recorded eating this genus across North America. Caterpillars on host plants also feed nesting birds. NC Native Plant Society: butterfly gardening
No records yet · Ants · Beetles · Flies · Adult butterflies / moths · Other wasps · Other insects
Plant details
- Family
- Cyperaceae
- Flower color
- Brown
Safety has not been reviewed for this plant; check toxicity and thorns before planting.
Growing sources and scope
- Flower color · “Brown” · Lady Bird Johnson Wildflower Center
- Height · “Up to about 3 feet” · Lady Bird Johnson Wildflower Center
- Life cycle · “Perennial” · Lady Bird Johnson Wildflower Center
- Light · “Partial shade; Full shade; Full sun (documented habitat)” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition · Carolinas and Georgia
- Soil · “Moist; Water; Wet (documented habitat)” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition · Carolinas and Georgia
Conservation status
| Florida rank | S4? |
|---|---|
| Global rank | G5 |
| FL status | Not verified |
| Federal status | Not verified |
Will it fit your yard?
Check this plant against your county, sun and soil moisture. Conditions are checked in your browser.
Sources
- Atlas of Florida Plants
- USDA PLANTS
- Vascular Plants of North Carolina (NC Natural Heritage Program)
- Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition
- NatureServe Explorer
- Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
- Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
- Smith, Bachelder, Russell, Morales, Mosher & Seltmann 2024, Bee-Specialization-Modeling v0.6.1 (specialist host table compiled from J. Fowler's pollen specialist bee lists), Zenodo, CC BY 4.0
- Hurlbert, Olsen, Sawyer & Winner 2021, Avian Diet Database, Scientific Data 8: 260 (CC0)
- Narango, Tallamy & Shropshire 2020, Few keystone plant genera support the majority of Lepidoptera species, Nature Communications

























