Poaceae
Waxy mannagrass
Glyceria declinata
- Family
- Poaceae
- Genus
- Glyceria
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Common names
By language (10)
- Czech
- Zblochan zoubkatý
- Dutch
- Getand vlotgras
- English
- Waxy mannagrass, Small sweet-grass
- Estonian
- Hallikas parthein
- Finnish
- Pikkusorsimo
- French
- Glycérie dentée
- German
- Blaugrüner Schwaden
- Norwegian Bokmål
- Buesøtgress
- Swedish
- Blågrönt mannagräs
- Welsh
- Melyswellt llwydlas
Synonyms
- Glyceria cookei Swallen
- Glyceria fluitans subsp. declinata (Bréb.) O.Bolòs, Masalles & Vigo
- Glyceria fluitans var. declinata (Bréb.) Ghisa
- Glyceria fluitans var. pumila Andersson
- Glyceria notata subsp. declinata (Bréb.) Weeda
- Glyceria plicata subsp. declinata (Bréb.) Weeda
- Glyceria plicata var. declinata (Bréb.) Druce
- Glyceria plicata var. littoralis Hausskn.
- Glyceria plicata var. nana F.Towns.
Flowers
- In flower
- January to March, May to June, August, October to November (from 20 flowering iNaturalist observations worldwide)
Characteristics
- Growth habit
- Graminoid
- Lifespan
- Perennial
- In the US and Canada
- Canada: introduced, Lower 48 states: introduced
Photos
FlowerPhoto: Joe Dillon, CC BY 4.0, from iNaturalist 
FlowerPhoto: Joe Dillon, CC BY 4.0, from iNaturalist 
FlowerPhoto: Joe Dillon, CC BY 4.0, from iNaturalist 
FlowerPhoto: Joe Dillon, CC BY 4.0, from iNaturalist 
FruitPhoto: Peter de Lange, CC0, from iNaturalist 
Photo: James K. Lindsey, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Ewen Cameron, CC BY 4.0, from Wikimedia Commons 
Photo: Paul Bell-Butler, CC BY 4.0, from iNaturalist 
Photo: Ewen Cameron, CC BY 4.0, from Wikimedia Commons 
Photo: Mathieu MENAND, CC BY-SA 2.0, from Wikimedia Commons 
Photo: John Steel, CC BY 4.0, from iNaturalist 
Photo: Mathieu MENAND, CC BY-SA 2.0, from Wikimedia Commons
More in Glyceria
- Water mannagrassGlyceria fluitansPoaceae
- Reed mannagrassGlyceria maximaPoaceae
- Glyceria lithuanicaPoaceae
- Plicate sweet-grassGlyceria notataPoaceae
- Fowl manna grassGlyceria striataPoaceae
- Rattlesnake manna grassGlyceria canadensisPoaceae
- Glyceria nemoralisPoaceae
- American mannagrassGlyceria grandisPoaceae
- Creeping mannagrassGlyceria acutifloraPoaceae
- Northern manna grassGlyceria borealisPoaceae
- Glyceria ischyroneuraPoaceae
- Davy mannagrassGlyceria leptostachyaPoaceae
Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.