Fowl Mannagrass

Glyceria striata

Pollinator Value

🐛 Larval Host: Plusia contexta, Apamea dubitans, Leucania commoides, Pseudohermonassa tenuicula, Plusia putnami, Lateroligia ophiogramma, Apamea unanimis, Pseudohermonassa bicarnea, Mythimna unipuncta
S13+S15 9 verified Eastern NA
❄️ Winter Food Source: Seeds and foliage consumed by waterfowl including Greater White-fronted Goose, Mute Swan, Tundra Swan, and Redhead duck; also eaten by Wild Turkey. Canada Geese graze foliage along waterways.
S57 S10

Proximity Score: 0
Native Status: ✅ Outaouais ✅ Ottawa ✅ QC ✅ ON
Closest Direction: Local
CEC Eco-Regions: 5 – Northern Forests, 5.2 – Mixed Wood Shield, 5.2.3 – Algonquin/Southern Laurentians
Rarity Notes: Globally secure (G5), nationally secure in both Canada (N5) and the United States (N5). Ranked S5 in both Ontario and Quebec. Not listed under SARA or COSEWIC. One of the most widespread and common Glyceria species in North America.
S22 S26
Rarity Ranks: QC S5 – Secure, ON S5 – Secure
Migration: Stable
Ecological Context: Common native wetland grass of marshes, swamps, wet deciduous woodlands, fens, bogs, seeps, prairie swales, shorelines, and ditches across the Ottawa-Gatineau region. Thrives in both shaded woodland pools and open sunny marshes, tolerating a wide range of wet to mesic conditions. Forms tufts and occasional small colonies, providing cover and food resources for waterfowl and wetland wildlife.
S10 S7 S61

Roles: Fortress/Barrier, Living Mulch
S73/S29/S72 Evidence: Fortress/Barrier: S61 keyword match: prickl (supporting signal only)] | Living Mulch: S10 keyword match: forms? colon(?:y|ies) (supporting signal only)]

✅ Edible

Foraging Notes: Seed is technically edible but very small and fiddly to harvest, making it impractical as a food source. The genus name Glyceria refers to the sweet taste of the grains, and European species were historically used as food for domesticated geese.
S29 S10