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Rattlesnake Manna Grass

Glyceria canadensis

Found in bogs, seepages, montane depression ponds, and wet meadows. Weakley, Flora of the Southeastern United States (2025), Northern Tier edition What its natural habitat tells you

40
Good

Native to West Virginia. How scores work Is it native here?

Profile 100%

Height
About 3.2 feet
Light
Full sun, Part shade
Soil moisture
Moist to wet
Will it fit your yard?

At a glance

Bloom
June to August
Fruiting season
Spring to summer

Not yet recorded · Spread · Life cycle · Leaves

Recorded in 6 West Virginia counties.

Natural habitats

Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.

1 of 2

Seeps and springs

Places where groundwater keeps the soil or rock wet, such as seepage slopes and spring runs.

Wet meadows

Open, wet, grassy or sedgy ground that is not a bog.

All habitats

Ecological relationships

Who uses this plant?

What these records mean

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
Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
0BeesSoutheastern regional records
0Specialist beesPollen specialists
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.

Avian Diet Database (Hurlbert Lab)

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.

Growing and identification

Plant details

Family
Poaceae
Flower color
Green
Growth rate
Moderate
Growth habit
Grows in clumps
Foliage color
Green
Fruit begins
Spring
Fruit ends
Summer

Safety has not been reviewed for this plant; check toxicity and thorns before planting.

Growing sources and scope
  • Bloom · “June to August” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition (ranked first; USDA PLANTS differs) · Carolinas and Georgia
  • Flower color · “Green” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
  • Foliage color · “Green” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
  • Fruit begins · “Spring” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
  • Fruit ends · “Summer” · 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
  • Height · “About 3.2 feet” · USDA PLANTS (ranked first; Prairie Moon 2026 Cultural Guide differs) · Nationwide species characteristics; local growing conditions may vary
  • Light · “Full sun (6+ hours); Part shade (3–6 hours)” · Prairie Moon 2026 Cultural Guide · Nursery cultural guide; height in flower; moisture categories retained as printed
  • Soil · “Wet; Wet-mesic” · Prairie Moon 2026 Cultural Guide · Nursery cultural guide; height in flower; moisture categories retained as printed

Conservation status

West Virginia rankS3S4
Global rankG5
WV statusNot verified
Federal statusNot verified

Conservation source Global and federal source

In your garden

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Sources