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Northern Mannagrass
Glyceria borealis
  
About Northern Mannagrass (Glyceria borealis) 0 Nurseries Carry This Plant 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. It grows a tall and very thin stem often exceeding a meter in height when erect. It may bend, lie flat on the ground, or float in the water of ponds and streams. The leaves bear ligules up to a centimeter long. The narrow, long flower cluster has cylindrical spikelets one to two centimeters long, each made up of 6 to 11 florets with membranous margins.
Plant Description
Plant Type
Plant Type
Grasses

Size
Size
3.3 - 5 ft tall

Form
Form
Upright

Growth Rate
Growth Rate
Moderate

Flower Color
Flower Color
Green

Flowering Season
Flowering Season
Spring

Wildlife Supported
 


 
Butterflies & moths hosted ( 3 likely * ) SHOW ALL

Landscaping Information
Sun
Sun
Full Sun, Part Shade

Soil Description
Soil Description
Adaptable, tolerant of sand, loam and clay

Natural Setting
Site Type
Site Type
Shallow water, muddy shores, freshwater ponds, lakes,

Climate
Climate
Annual Precipitation: 9.3" - 79.2", Summer Precipitation: 0.15" - 2.80", Coldest Month: 21.5" - 53.4", Hottest Month: 48.2" - 75.8", Humidity: 0.37" - 22.51", Elevation: 13" - 8885"

Alternative Names
Common Names: Boreal Mannagrass, Small Floating Mannagrass


Sources include: Wikipedia. All text shown in the "About" section of these pages is available under the Creative Commons Attribution-ShareAlike License. Plant observation data provided by the participants of the California Consortia of Herbaria, Sunset information provided by Jepson Flora Project. Propogation from seed information provided by the Santa Barbara Botanical Garden from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include CalPhotos, Wikimedia Commons, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include Calflora, CNPS Manual of Vegetation Online, Jepson Flora Project, Las Pilitas, Theodore Payne, Tree of Life, The Xerces Society, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from PRISM Climate Group, Oregon State University, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.

Links:   Jepson eFlora Taxon Page  CalPhotos  Wikipedia  Calflora


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