Glyceria
mannagrass
10 species
2 subspecies and varieties
2 subspecies and varieties
Show only taxa with photos
Order by:
Scientific name
Common name
Display as:
Glyceria borealis – small floating manna grass
Distribution: Alaska east to Newfoundland, south to California and New Mexico.
Habitat: Swamps, wet meadows, and stream margins, often growing in 1-3 feet of water.
Origin: Native
Flowers: May - October
Growth Duration: perennial
Distribution: Alaska east to Newfoundland, south to California and New Mexico.
Habitat: Swamps, wet meadows, and stream margins, often growing in 1-3 feet of water.
Origin: Native
Flowers: May - October
Growth Duration: perennial
Glyceria canadensis – Canada mannagrass, rattlesnake mannagrass
Origin: Introduced
Origin: Introduced
• var. canadensis – rattlesnake manna grass
Glyceria elata – tall mannagrass
Distribution: British Columbia south on both sides of the Cascades to California, east to Montana and New Mexico.
Habitat: Lake margins, stream banks, moist mountain meadows and other wet areas.
Origin: Native
Flowers: May - July
Growth Duration: perennial
Distribution: British Columbia south on both sides of the Cascades to California, east to Montana and New Mexico.
Habitat: Lake margins, stream banks, moist mountain meadows and other wet areas.
Origin: Native
Flowers: May - July
Growth Duration: perennial
Glyceria grandis – American mannagrass
Distribution: Alaska south to Oregon, chiefly east of the Cascades; east to northeast United States and south to Virginia and New Mexico.
Habitat: Sloughs, damp meadows and stream borders.
Origin: Native
Flowers: Late June - Early August
Growth Duration: perennial
Distribution: Alaska south to Oregon, chiefly east of the Cascades; east to northeast United States and south to Virginia and New Mexico.
Habitat: Sloughs, damp meadows and stream borders.
Origin: Native
Flowers: Late June - Early August
Growth Duration: perennial
• var. grandis – reed mannagrass
Glyceria leptostachya – slender-spike manna grass
Origin: Native
Flowers: June - August
Growth Duration: perennial
Origin: Native
Flowers: June - August
Growth Duration: perennial
Glyceria ×occidentalis – northwestern manna grass
Origin: Native
Flowers: May - June
Growth Duration: perennial
Origin: Native
Flowers: May - June
Growth Duration: perennial
Glyceria striata – fowl manna grass
Distribution: Alaska south to northern California, east to Newfoundland and Florida.
Habitat: Wet places, bogs, and mountain meadows.
Origin: Native
Flowers: May - July
Growth Duration: perennial
Distribution: Alaska south to northern California, east to Newfoundland and Florida.
Habitat: Wet places, bogs, and mountain meadows.
Origin: Native
Flowers: May - July
Growth Duration: perennial
