Savanna Panicgrass
Phanopyrum gymnocarpon
In the Carolinas and Georgia, found in swamps; forests and woodlands; roadsides, fields and disturbed ground; streams, rivers and their banks; ponds, lakes and their shores; floodplain and bottomland forests; freshwater marshes. Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition What its natural habitat tells you
Native to Arkansas. How scores work Is it native here?
Profile 88%
- Height
- Up to about 4 feet
- Light
- Partial shade, Full shade
- Soil moisture
- Wet to standing water
No photograph yet. Looking for an old drawing…
At a glance
- Life cycle
- Perennial
- Bloom
- August to October
Not yet recorded · Spread · Leaves
Recorded in 10 Arkansas counties.
Natural habitats
Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.
Forest or woodland where the source does not say how moist or dry.
Roadsides, fields and disturbed ground
Ground opened by people: roadsides, old fields, pastures, fencerows and lots.
Streams, rivers and their banks
Flowing water and its banks, bars and rocky shoals.
Still water and its edges: ponds, lakes, millponds and reservoirs.
Floodplain and bottomland forests
Forests on low ground beside rivers and streams that flood from time to time.
Open, herb-covered wetlands with fresh, non-tidal water.
Also found with this plant
Wildlife whose habitat models include habitats this plant grows in, in Arkansas. Shared habitat, not food. 44 animals.
- Least FlycatcherEmpidonax minimus
- Louisiana WaterthrushSeiurus motacilla
- Northern ParulaParula americana
- Northern Saw-whet OwlAegolius acadicus
- OvenbirdSeiurus aurocapilla
- Prothonotary WarblerProtonotaria citrea
- Red-breasted NuthatchSitta canadensis
- Red-shouldered HawkButeo lineatus
- Ring-necked DuckAythya collaris
- Ruffed GrouseBonasa umbellus
- Scarlet TanagerPiranga olivacea
- SoraPorzana carolina
- Swainson's WarblerLimnothlypis swainsonii
- VeeryCatharus fuscescens
- White-eyed VireoVireo griseus
- Willow FlycatcherEmpidonax traillii
- Wilson's SnipeGallinago delicata
- Wood DuckAix sponsa
- Worm-eating WarblerHelmitheros vermivorum
- Yellow-throated WarblerDendroica dominica
Widespread birds also seen here (75)
Found in many habitats here, so not listed above.
- Alder Flycatcher
- American Goldfinch
- American Kestrel
- American Redstart
- American Robin
- Baltimore Oriole
- Bank Swallow
- Belted Kingfisher
- Bewick's Wren
- Black-and-White Warbler
- Black-crowned Night-heron
- Blue Grosbeak
- Blue Jay
- Blue-gray Gnatcatcher
- Brown Creeper
- Brown Thrasher
- Canada Goose
- Carolina Chickadee
- Cedar Waxwing
- Chimney Swift
- Chipping Sparrow
- Cliff Swallow
- Common Nighthawk
- Common Yellowthroat
- Cooper's Hawk
- Double-crested Cormorant
- Downy Woodpecker
- Eastern Kingbird
- Eastern Screech-owl
- Eastern Wood-pewee
- Eurasian Collared-dove
- European Starling
- Golden-crowned Kinglet
- Gray Catbird
- Great Horned Owl
- Hairy Woodpecker
- Harris's Sparrow
- Hermit Thrush
- Hooded Merganser
- Indigo Bunting
- Lincoln's Sparrow
- Mallard
- Mississippi Kite
- Mourning Dove
- Northern Cardinal
- Northern Flicker
- Northern Mockingbird
- Orange-crowned Warbler
- Orchard Oriole
- Osprey
- Pileated Woodpecker
- Pine Siskin
- Purple Finch
- Red-bellied Woodpecker
- Red-headed Woodpecker
- Red-tailed Hawk
- Red-winged Blackbird
- Ruby-crowned Kinglet
- Ruby-throated Hummingbird
- Rusty Blackbird
- Sharp-shinned Hawk
- Song Sparrow
- Spotted Sandpiper
- Tree Swallow
- Tufted Titmouse
- Turkey Vulture
- White-breasted Nuthatch
- White-throated Sparrow
- Wild Turkey
- Wood Thrush
- Yellow-bellied Sapsucker
- Yellow-billed Cuckoo
- Yellow-breasted Chat
- Yellow-crowned Night-heron
- Yellow-rumped Warbler
Who uses this plant?
23CaterpillarsGenus host records with ranges including AR
Genus host records with ranges including AR · Panicum
- Amblyscirtes nysaNysa Roadside-Skipper
- Anatrytone loganDelaware Skipper, Logan Skipper, Black-Vein Skipper
- Ancyloxypha numitorLeast Skipper
- Dargida diffusaWheat Head Armywotm Moth
- Dargida rubripennisThe Pink-Streak
- Hesperia leonardusLeonard's Skipper, Blazing Star Skipper, Pawnee Prairie Skipper, Pawnee Montane Skipper
- Hylephila phyleusFiery Skipper
- Hypena scabraGreen Cloverworm Bomolocha, Black Snout
- Lerema acciusClouded Skipper, Corn Leaf tier
- Lethe anthedonNorthern Pearly Eye
Show all 23
- Leucania adjutaAdjutant Wainscot
- Lon hobomokHobomok Skipper
- Marimatha nigrofimbriaBlack-Bordered Lemon
- Mocis latipesSmall Mocis, Striped Grass Looper
- Mocis texanaTexas Mocis
- Mythimna unipunctaArmyworm Moth, White Speck
- Panoquina ocolaOcola Skipper, Long-Winged Skiiper
- Papaipema nebrisStalk Borer
- Polites egeremetNorthern Broken-Dash
- Polites themistoclesTawny-Edged Skipper
- Spodoptera frugiperdaFall Armyworm Moth
- Elachista radiantella
- Idioglossa miraculosa
0BeesSoutheastern regional records
0Specialist beesPollen specialists
35BirdsRecorded genus food-resource interactions; not a state feeding claim
Recorded genus food-resource interactions; not a state feeding claim · Panicum
- Acanthis flammeaCommon Redpoll
- Agelaius phoeniceusRed-winged Blackbird
- Aix sponsaWood Duck
- Anas creccaGreen-winged Teal
- Anthus rubescensAmerican Pipit
- Anthus spragueiiSprague's Pipit
- Aythya collarisRing-necked Duck
- Calcarius lapponicusLapland Longspur
- Calcarius ornatusChestnut-collared Longspur
- Calcarius pictusSmith's Longspur
Show all 35
- Callipepla gambeliiGambel's Quail
- Colinus virginianusNorthern Bobwhite
- Columbina passerinaCommon Ground Dove
- Contopus virensEastern Wood-Pewee
- Cyrtonyx montezumaeMontezuma Quail
- Dendrocygna bicolorFulvous Whistling-Duck
- Dolichonyx oryzivorusBobolink
- Fulica americanaAmerican Coot
- Gallinula galeataCommon Gallinule
- Junco hyemalisDark-eyed Junco
- Mareca streperaGadwall
- Meleagris gallopavoWild Turkey
- Molothrus aterBrown-headed Cowbird
- Passer domesticusHouse Sparrow
- Peucaea aestivalisBachman's Sparrow
- Plectrophenax nivalisSnow Bunting
- Pooecetes gramineusVesper Sparrow
- Porzana carolinaSora
- Quiscalus quisculaCommon Grackle
- Sialia sialisEastern Bluebird
- Spizella passerinaChipping Sparrow
- Spizella pusillaField Sparrow
- Turdus migratoriusAmerican Robin
- Xanthocephalus xanthocephalusYellow-headed Blackbird
- Zenaida macrouraMourning Dove
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
- Poaceae
- Flower color
- Green or brown
Safety has not been reviewed for this plant; check toxicity and thorns before planting.
Growing sources and scope
- Bloom · “August to October” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition · Carolinas and Georgia
- Flower color · “Green or brown” · Lady Bird Johnson Wildflower Center
- Height · “Up to about 4 feet” · Lady Bird Johnson Wildflower Center
- Life cycle · “Perennial” · Lady Bird Johnson Wildflower Center
- Light · “Partial shade; Full shade (documented habitat)” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition · Carolinas and Georgia
- Soil · “Water; Wet (documented habitat)” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition · Carolinas and Georgia
Also known as
Panicum gymnocarpon; Savannah Panic Grass; panicgrass
Conservation status
| Arkansas rank | SNR |
|---|---|
| Global rank | G5 |
| AR 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 the Vascular Plants of Arkansas (2013)
- USDA PLANTS
- Vascular Plants of North Carolina (NC Natural Heritage Program)
- Weakley, Flora of the Southeastern United States (2025), Florida edition
- Arkansas occurrence source
- 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