Bitter Panicgrass
Panicum amarum
Native to Florida. How scores work Is it native here?
Profile 94%
- Height
- 3–4 feet
- Spread
- 2–3 feet
- Light
- Full sun
- Soil moisture
- Dry to moist
Space about 2.5 ft apart from its recorded spread, about 16 per 100 sq ft. Enter your bed size for a count
Will it fit your yard?No photograph yet. Looking for an old drawing…
At a glance
- Bloom
- Mid summer
- Fruiting season
- Summer to fall
Not yet recorded · Life cycle · Leaves
Recorded in 26 Florida counties.
Also found with this plant
Wildlife whose habitat models include habitats this plant grows in, in Florida. Shared habitat, not food. 93 animals.
- Laughing GullLeucophaeus atricilla
- Le Conte's SparrowAmmodramus leconteii
- Least TernSternula antillarum
- Little GullHydrocoloeus minutus
- Loggerhead ShrikeLanius ludovicianus
- Long-billed CurlewNumenius americanus
- Marbled GodwitLimosa fedoa
- MerlinFalco columbarius
- Mourning DoveZenaida macroura
- Nelson's Sharp-tailed SparrowAmmodramus nelsoni
- Northern BobwhiteColinus virginianus
- Northern FlickerColaptes auratus
- Northern MockingbirdMimus polyglottos
- Northern Rough-winged SwallowStelgidopteryx serripennis
- Northern ShovelerAnas clypeata
- Painted BuntingPasserina ciris
- Palm WarblerDendroica palmarum
- Peregrine FalconFalco peregrinus
- Piping PloverCharadrius melodus
- Prairie WarblerDendroica discolor
- Purple FinchCarpodacus purpureus
- Purple MartinProgne subis
- Red KnotCalidris canutus
- Red-shouldered HawkButeo lineatus
Who uses this plant?
21CaterpillarsGenus host records with ranges including FL
Genus host records with ranges including FL · Panicum
- Anatrytone loganDelaware Skipper, Logan Skipper, Black-Vein Skipper
- Ancyloxypha numitorLeast Skipper
- Dargida diffusaWheat Head Armywotm Moth
- Dargida rubripennisThe Pink-Streak
- Hesperia attalusDotted Skipper
- Hylephila phyleusFiery Skipper
- Hypena scabraGreen Cloverworm Bomolocha, Black Snout
- Lerema acciusClouded Skipper, Corn Leaf tier
- Leucania adjutaAdjutant Wainscot
- Leucania linitaReed Wainscot, Linen Wainscot
Show all 21
- Marimatha nigrofimbriaBlack-Bordered Lemon
- Mocis latipesSmall Mocis, Striped Grass Looper
- Mocis texanaTexas Mocis
- Mythimna unipunctaArmyworm Moth, White Speck
- Panoquina ocolaOcola Skipper, Long-Winged Skiiper
- Poanes viatorBroad-Winged Skipper
- Polites egeremetNorthern Broken-Dash
- Polites themistoclesTawny-Edged Skipper
- Spodoptera frugiperdaFall Armyworm Moth
- Elachista solitaria
- Idioglossa miraculosa
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
- Hardiness
- Zones 2a–9b
- Flower color
- Pink
- Growth rate
- Moderate
- Growth habit
- Grows in clumps
- Foliage color
- Green
- Fruit begins
- Summer
- Fruit ends
- Fall
What its natural habitat tells you
Safety has not been reviewed for this plant; check toxicity and thorns before planting.
Growing sources and scope
- Bloom · “Mid summer” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
- Flower color · “Pink” · NC Extension Plant Toolbox (ranked first; USDA PLANTS differs)
- Foliage color · “Green” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
- Fruit begins · “Summer” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
- Fruit ends · “Fall” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
- Growth habit · “Grows in clumps” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
- Growth rate · “Moderate” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
- Hardiness · “Zones 2a–9b” · NC Extension Plant Toolbox
- Height · “3–4 feet” · NC Extension Plant Toolbox (ranked first; USDA PLANTS differs)
- Light · “Full sun (6 or more hours of direct sunlight a day)” · NC Extension Plant Toolbox (ranked first; Virginia DCR Coastal Plain differs)
- Soil · “Moist; Occasionally dry; Very dry” · NC Extension Plant Toolbox (ranked first; Virginia DCR Coastal Plain differs)
- Spread · “2–3 feet” · NC Extension Plant Toolbox
Conservation status
| Florida rank | S4S5 |
|---|---|
| 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)
- 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

























