American Mannagrass
Glyceria grandis
Native to West Virginia. How scores work Is it native here?
Profile 94%
- Height
- 3–5 feet
- Light
- Full sun
- Soil moisture
- Moist to wet

At a glance
- Bloom
- June to September
Not yet recorded · Spread · Life cycle · Leaves
Recorded in 1 West Virginia county.
Also found with this plant
Wildlife whose habitat models include habitats this plant grows in, in West Virginia. Shared habitat, not food. 74 animals.
- Pine SiskinCarduelis pinus
- Prothonotary WarblerProtonotaria citrea
- Red-bellied WoodpeckerMelanerpes carolinus
- Red-breasted NuthatchSitta canadensis
- Red-headed WoodpeckerMelanerpes erythrocephalus
- Red-shouldered HawkButeo lineatus
- Ring-necked DuckAythya collaris
- Ruby-throated HummingbirdArchilochus colubris
- Ruffed GrouseBonasa umbellus
- Rusty BlackbirdEuphagus carolinus
- Scarlet TanagerPiranga olivacea
- Song SparrowMelospiza melodia
- SoraPorzana carolina
- Swainson's WarblerLimnothlypis swainsonii
- Tree SwallowTachycineta bicolor
- White-breasted NuthatchSitta carolinensis
- White-eyed VireoVireo griseus
- Willow FlycatcherEmpidonax traillii
- Wilson's SnipeGallinago delicata
- Wood DuckAix sponsa
- Wood ThrushHylocichla mustelina
- Worm-eating WarblerHelmitheros vermivorum
- Yellow-bellied SapsuckerSphyrapicus varius
- Yellow-billed CuckooCoccyzus americanus
Widespread birds also seen here (45)
Found in many habitats here, so not listed above.
- Alder Flycatcher
- American Crow
- American Goldfinch
- American Kestrel
- American Redstart
- American Robin
- Belted Kingfisher
- Black-billed Cuckoo
- Blue Grosbeak
- Blue Jay
- Blue-gray Gnatcatcher
- Cedar Waxwing
- Chimney Swift
- Chipping Sparrow
- Common Nighthawk
- Common Raven
- Common Yellowthroat
- Cooper's Hawk
- Eastern Kingbird
- Eastern Towhee
- European Starling
- Gray Catbird
- Great Crested Flycatcher
- Great Horned Owl
- Least Flycatcher
- Mourning Dove
- Northern Cardinal
- Northern Flicker
- Northern Mockingbird
- Olive-sided Flycatcher
- Orange-crowned Warbler
- Osprey
- Purple Finch
- Red-tailed Hawk
- Red-winged Blackbird
- Ruby-crowned Kinglet
- Sharp-shinned Hawk
- Spotted Sandpiper
- Tufted Titmouse
- Turkey Vulture
- Veery
- White-throated Sparrow
- Wild Turkey
- Yellow-breasted Chat
- Yellow-rumped Warbler
Who uses this plant?
11CaterpillarsGenus host records with ranges including WV
Genus host records with ranges including WV · Glyceria
- Apamea devastatorGlassy Borer, Glassy Cutworm Moth
- Apamea dubitansDoubtful Agroperina
- Leucania commoidesDusky Wainscot, Comma Wainscot
- Leucania lapidariaX
- Limochores origenesCrossline Skipper
- Mythimna oxygalaLesser Wainscot
- Mythimna unipunctaArmyworm Moth, White Speck
- Plusia contextaConnected Looper Moth
- Polites themistoclesTawny-Edged Skipper
- Pseudohermonassa bicarneaPink-Spotted Dart
Show all 11
- Pseudohermonassa tenuiculaMorrison's Sooty Dart
2BirdsRecorded eating Glyceria in West Virginia
Diet records by plant genus, from studies across North America. Not a record from this state. Birds whose range includes West Virginia, most records first.
- RedheadSeeds. 2 diet records
- Wild Turkey2 diet records
Direct food only. 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
Birds that eat Glyceria 2
Diet records by plant genus, from studies across North America. Not a record from this state. Avian Diet Database (Hurlbert Lab), CC0 1.0.
- RedheadAythya americana
- Wild TurkeyMeleagris gallopavo
Plant details
- Family
- Poaceae
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 · “June to September” · Prairie Moon 2026 Cultural Guide · Nursery cultural guide; height in flower; moisture categories retained as printed
- Height · “3–5 feet” · Tennessee Smart Yards (ranked first; Prairie Moon 2026 Cultural Guide differs) · Published Tennessee growing guidance; exact cached scientific heading
- Light · “Full sun” · Tennessee Smart Yards (ranked first; Prairie Moon 2026 Cultural Guide differs) · Published Tennessee growing guidance; exact cached scientific heading
- Soil · “wet to moderately wet” · Tennessee Smart Yards (ranked first; Prairie Moon 2026 Cultural Guide differs) · Published Tennessee growing guidance; exact cached scientific heading
Also known as
American Manna Grass
Conservation status
| West Virginia rank | S3 |
|---|---|
| Global rank | G5 |
| WV 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.
Growing cautions
- Spreads by rhizomes. Spreads by both thick rhizomes and stolons. Tennessee Smart Yards
For planning only; these do not change the score or Fit.
Sources
- NatureServe Explorer
- USDA PLANTS
- Vascular Plants of North Carolina (NC Natural Heritage Program)
- West Virginia 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


























