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Mannagrasses (Glyceria)
Mannagrasses are common grasses that are widespread across all temperate continents. Some species are classed as invasive due to their ability to grow in thick stands, crowding out other plants. They spread very successfully because of their subterranean creeping rootstalks which can anchor the plants in multiple locations. 
Lifespan
Perennial
Plant Type
Herb/Vine
Key Facts About Mannagrasses
Feedback
Attributes of Mannagrasses
Leaf type
Deciduous
Scientific Classification of Mannagrasses
Distribution of Mannagrasses
Feedback
Distribution Map of Mannagrasses
Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
How to Grow and Care for Mannagrasses
Feedback
Mannagrasses, a genus of grass native to temperate zones, is generally easy to grow, thriving in moist, well-drained locations with part to full sun exposure. It can tolerate a wide range of temperatures. Basic care requires regular watering, especially in hotter months. Care must be taken to avoid water stagnation and root rot. Mannagrasses faces challenges like leaf rust, powdery mildew, and aphid infestation. Seasonally, it requires heavier watering during summer and protection from frost in winter. Thus, adjustment in care according to seasonal variations is essential.
Exploring the Mannagrasses Plants
Feedback
8 most common species：
Small sweet-grass
These plants reach a height of 10 to 160 cm with a bushy habit. The prevailing biological form is rhizomatous geophyte (G rhiz), that is herbaceous perennial plants that carry buds in an underground position; during the adverse season they do not present aerial organs and the gems are found in underground organs like bulbs.
Fowl Mannagrass
Referred to as the fowl Mannagrass, the Glyceria striata is native to North America. This common species of bunchgrass is found in wet areas and is considered a good food source for horses and cattle.
Reed mannagrass
The reed mannagrass is an aquatic, perennial grass endemic to Eurasia that grows in damp environments such as riverbanks and ponds. It is deemed harmful in some locations. It is considered very invasive, particularly in Australia, since it may grow into a thick, impermeable monoculture that drives out indigenous species.
Water manna grass
Water manna grass is an aquatic plant that can be found in ditches, ponds, and riverbanks. The specific epithet, fluitans, means "floating," as the leaves sit atop the water's surface. Water manna grass is part of the UK's Biodiversity Action Plan, where it is an essential component of rush pastures and purple moor grass.
Rattlesnake mannagrass
Rattlesnake mannagrass (Glyceria canadensis) is a perennial grass that can grow up to 91 cm tall. It is commonly found in wetlands, marshes, and swamps, and has often been used in wetland mitigation sites. It thrives in full sun to partial shade with moist soil, and blooms in summer with spikes of brown flowers that curve downward.
Fowl manna grass
Fowl manna grass is a semiaquatic species that is at home in shallow water or moist meadows and woods. It grows at elevations as high as 2134 m. It is occasionally planted ornamentally and is also quite palatable to livestock. Unfortunately, fowl manna grass can retain significant amounts of cyanide and has been linked to cases of poisoning in cattle.
Small floating mannagrass
Glyceria borealis is a species of mannagrass known by the common names northern mannagrass, boreal mannagrass, and small floating mannagrass. It is native to much of the northern half of North America, where it has a widespread distribution. This semiaquatic plant grows in wet areas in mountain forests, often in the water.
Melic mannagrass
Melic mannagrass is a graceful perennial grass thriving in wetlands and moist meadows. This plant is distinguished by its loosely open flower clusters and shiny, wavy-edged leaves, which may be up to 20 cm long. The floating leaf blades and preference for standing water reveal melic mannagrass's adaptability to marshy habitats, where it provides food and shelter for local wildlife. Its delicate, nodding seed heads create a soft, rippling effect in the breeze, offering serene beauty and ecological value.
All Species of Mannagrasses
Small sweet-grass
Small sweet-grass
These plants reach a height of 10 to 160 cm with a bushy habit. The prevailing biological form is rhizomatous geophyte (G rhiz), that is herbaceous perennial plants that carry buds in an underground position; during the adverse season they do not present aerial organs and the gems are found in underground organs like bulbs.
Fowl Mannagrass
Fowl Mannagrass
Referred to as the fowl Mannagrass, the Glyceria striata is native to North America. This common species of bunchgrass is found in wet areas and is considered a good food source for horses and cattle.
Reed mannagrass
Reed mannagrass
The reed mannagrass is an aquatic, perennial grass endemic to Eurasia that grows in damp environments such as riverbanks and ponds. It is deemed harmful in some locations. It is considered very invasive, particularly in Australia, since it may grow into a thick, impermeable monoculture that drives out indigenous species.
Water manna grass
Water manna grass
Water manna grass is an aquatic plant that can be found in ditches, ponds, and riverbanks. The specific epithet, fluitans, means "floating," as the leaves sit atop the water's surface. Water manna grass is part of the UK's Biodiversity Action Plan, where it is an essential component of rush pastures and purple moor grass.
Rattlesnake mannagrass
Rattlesnake mannagrass
Rattlesnake mannagrass (Glyceria canadensis) is a perennial grass that can grow up to 91 cm tall. It is commonly found in wetlands, marshes, and swamps, and has often been used in wetland mitigation sites. It thrives in full sun to partial shade with moist soil, and blooms in summer with spikes of brown flowers that curve downward.
Fowl manna grass
Fowl manna grass
Fowl manna grass is a semiaquatic species that is at home in shallow water or moist meadows and woods. It grows at elevations as high as 2134 m. It is occasionally planted ornamentally and is also quite palatable to livestock. Unfortunately, fowl manna grass can retain significant amounts of cyanide and has been linked to cases of poisoning in cattle.
Small floating mannagrass
Small floating mannagrass
Glyceria borealis is a species of mannagrass known by the common names northern mannagrass, boreal mannagrass, and small floating mannagrass. It is native to much of the northern half of North America, where it has a widespread distribution. This semiaquatic plant grows in wet areas in mountain forests, often in the water.
Melic mannagrass
Melic mannagrass
Melic mannagrass is a graceful perennial grass thriving in wetlands and moist meadows. This plant is distinguished by its loosely open flower clusters and shiny, wavy-edged leaves, which may be up to 20 cm long. The floating leaf blades and preference for standing water reveal melic mannagrass's adaptability to marshy habitats, where it provides food and shelter for local wildlife. Its delicate, nodding seed heads create a soft, rippling effect in the breeze, offering serene beauty and ecological value.
Plicate sweet-grass
Plicate sweet-grass
Glyceria notata, the plicate sweet-grass or marked glyceria, is a invasive specie part of the rhizomatous family. tufted, perennial grasses in the mannagrass genus, found in all continents of the world. Its culms are 30 to 80 cm in height, ascending from a prostrate base, with dark- to bluish-green, flat or folded leaf-blades some 5 to 30 cm long by 3 to 14 mm wide.
Glyceria leptolepis
Glyceria leptolepis
Glyceria leptolepis, a perennial grass, is distinguished by its delicate, arching stems and slender, glossy leaves that suggest grace and movement in watery environs. Its panicles bear a lightness that complements the gentle sway of waterside habitats, where glyceria leptolepis thrives, subtly indicating the dance between plant life and the ebb and flow of aquatic ecosystems.
More Popular Genus
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Dracaena
Dracaena are popular house plants that are easy to grow. They can tolerate low-light conditions and require little watering. Their leaves range from variegated to dark green. Their characteristic traits include woody stems that grow slowly but offer a striking appearance for small spaces such as apartments or offices.
Fig trees
Fig trees have been cultivated in many regions for their fruits, particularly the common fig, F. carica. Most of the species have edible fruits, although the common fig is the only one of commercial value. Fig trees are also important food sources for wildlife in the tropics, including monkeys, bats, and insects.
Brambles
Brambles are members of the rose family, and there are hundreds of different types to be found throughout the European countryside. They have been culturally significant for centuries; Christian folklore stories hold that when the devil was thrown from heaven, he landed on a bramble bush. Their vigorous growth habit can tangle into native plants and take over.
Maples
The popular tree family known as maples change the color of their leaves in the fall. Many cultural traditions encourage people to watch the colors change, such as momijigari in Japan. Maples popular options for bonsai art. Alternately, their sap is used to create maple syrup.
Prunus
Prunus is a genus of flowering fruit trees that includes almonds, cherries, plums, peaches, nectarines, and apricots. These are often known as "stone fruits" because their pits are large seeds or "stones." When prunus trees are damaged, they exhibit "gummosis," a condition in which the tree's gum (similar to sap) is secreted to the bark to help heal external wounds.
Nightshades
Nightshades is a large and diverse genus of plants, with more than 1500 different types worldwide. This genus incorporates both important staple food crops like tomato, potato, and eggplant, but also dangerous poisonous plants from the nightshade family. The name was coined by Pliny the Elder almost two thousand years ago.
Roses
Most species of roses are shrubs or climbing plants that have showy flowers and sharp thorns. They are commonly cultivated for cut flowers or as ornamental plants in gardens due to their attractive appearance, pleasant fragrance, and cultural significance in many countries. The rose hips (fruits) can also be used in jams and teas.
Oaks
Oaks are among the world's longest-lived trees, sometimes growing for over 1,000 years! The oldest known oak tree is in the southern United States and is over 1,500 years old. Oaks produce an exceedingly popular type of wood which is used to make different products, from furniture and flooring to wine barrels and even cosmetic creams.
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About
Key Facts
Distribution
How To Care
All Species
More Genus
Mannagrasses
Glyceria
Mannagrasses are common grasses that are widespread across all temperate continents. Some species are classed as invasive due to their ability to grow in thick stands, crowding out other plants. They spread very successfully because of their subterranean creeping rootstalks which can anchor the plants in multiple locations.
Lifespan
Perennial
Plant Type
Herb/Vine
Key Facts About Mannagrasses
Feedback
Attributes of Mannagrasses
Leaf type
Deciduous
Scientific Classification of Mannagrasses
Distribution of Mannagrasses
Feedback
Distribution Map of Mannagrasses
Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
How to Grow and Care for Mannagrasses
Feedback
Mannagrasses, a genus of grass native to temperate zones, is generally easy to grow, thriving in moist, well-drained locations with part to full sun exposure. It can tolerate a wide range of temperatures. Basic care requires regular watering, especially in hotter months. Care must be taken to avoid water stagnation and root rot. Mannagrasses faces challenges like leaf rust, powdery mildew, and aphid infestation. Seasonally, it requires heavier watering during summer and protection from frost in winter. Thus, adjustment in care according to seasonal variations is essential.
Exploring the Mannagrasses Plants
Feedback
8 most common species：
Small sweet-grass
These plants reach a height of 10 to 160 cm with a bushy habit. The prevailing biological form is rhizomatous geophyte (G rhiz), that is herbaceous perennial plants that carry buds in an underground position; during the adverse season they do not present aerial organs and the gems are found in underground organs like bulbs.
Fowl Mannagrass
Referred to as the fowl Mannagrass, the Glyceria striata is native to North America. This common species of bunchgrass is found in wet areas and is considered a good food source for horses and cattle.
Reed mannagrass
The reed mannagrass is an aquatic, perennial grass endemic to Eurasia that grows in damp environments such as riverbanks and ponds. It is deemed harmful in some locations. It is considered very invasive, particularly in Australia, since it may grow into a thick, impermeable monoculture that drives out indigenous species.
Water manna grass
Water manna grass is an aquatic plant that can be found in ditches, ponds, and riverbanks. The specific epithet, fluitans, means "floating," as the leaves sit atop the water's surface. Water manna grass is part of the UK's Biodiversity Action Plan, where it is an essential component of rush pastures and purple moor grass.
Show More Species
All Species of Mannagrasses
More Popular Genus
Feedback
Dracaena
Dracaena are popular house plants that are easy to grow. They can tolerate low-light conditions and require little watering. Their leaves range from variegated to dark green. Their characteristic traits include woody stems that grow slowly but offer a striking appearance for small spaces such as apartments or offices.
Fig trees
Fig trees have been cultivated in many regions for their fruits, particularly the common fig, F. carica. Most of the species have edible fruits, although the common fig is the only one of commercial value. Fig trees are also important food sources for wildlife in the tropics, including monkeys, bats, and insects.
Brambles
Brambles are members of the rose family, and there are hundreds of different types to be found throughout the European countryside. They have been culturally significant for centuries; Christian folklore stories hold that when the devil was thrown from heaven, he landed on a bramble bush. Their vigorous growth habit can tangle into native plants and take over.
Maples
The popular tree family known as maples change the color of their leaves in the fall. Many cultural traditions encourage people to watch the colors change, such as momijigari in Japan. Maples popular options for bonsai art. Alternately, their sap is used to create maple syrup.
Prunus
Prunus is a genus of flowering fruit trees that includes almonds, cherries, plums, peaches, nectarines, and apricots. These are often known as "stone fruits" because their pits are large seeds or "stones." When prunus trees are damaged, they exhibit "gummosis," a condition in which the tree's gum (similar to sap) is secreted to the bark to help heal external wounds.
Nightshades
Nightshades is a large and diverse genus of plants, with more than 1500 different types worldwide. This genus incorporates both important staple food crops like tomato, potato, and eggplant, but also dangerous poisonous plants from the nightshade family. The name was coined by Pliny the Elder almost two thousand years ago.
Roses
Most species of roses are shrubs or climbing plants that have showy flowers and sharp thorns. They are commonly cultivated for cut flowers or as ornamental plants in gardens due to their attractive appearance, pleasant fragrance, and cultural significance in many countries. The rose hips (fruits) can also be used in jams and teas.
Oaks
Oaks are among the world's longest-lived trees, sometimes growing for over 1,000 years! The oldest known oak tree is in the southern United States and is over 1,500 years old. Oaks produce an exceedingly popular type of wood which is used to make different products, from furniture and flooring to wine barrels and even cosmetic creams.
Your Ultimate Guide to Plants
Identify grow and nurture the better way!
17,000 local species +400,000 global species studied
Nearly 5 years of research
80+ scholars in botany and gardening
Continue reading in our app - it's better
A database of 400000+ plants
unlimited guides at your fingertips...
unlimited guides at your fingertips...
