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Grass Alisma
Alisma gramineum
  


About Grass Alisma (Alisma gramineum) Alisma gramineum is a small aquatic plant in the water-plantain family. It has several common names including narrowleaf water-plantain, ribbonleaf water-plantain or ribbon-leaved water-plantain, and grass-leaved water-plantain. It grows in mud or submerged in shallow fresh or brackish water in marshy areas. Alisma gramineum is widespread across temperate and subarctic portions of Asia and Europe and North Africa from France and Libya to China and Yakutsk. It is reported from much of Canada from British Columbia to Quebec, as well as most of the western United States plus New York, Vermont and Virginia. This is an endangered and protected species in the United Kingdom.
Plant Description
Plant Type
Perennial herb

Max. Height
1.5 ft (0.46 m)

Form
Upright

Growth Rate
Moderate

Flower Color
White

Flowering Season
Summer
Spring
Summer
Fall
Winter


Native Status
Natural Setting
Elevation ?
31' - 5684'

Annual Precip. ?
12.0" - 70.1"

Summer Precip. ?
0.32" - 1.81"

Coldest Month ?
30.1° F - 48.5° F

Hottest Month ?
58.8° F - 74.8° F

Humidity ?
0.15 vpd - 21.02 vpd

Soil Description
Prefers loamy or clay soils. Grows poorly in sandy soils.

Landscaping Information
Nursery Availability
Never or Almost Never Available

Other Names
Common Names
Narrowleaf Water Plantain, Narrowleaf Water-plantain, Ribbonleaf Water-plantain



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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