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Elodea canadensis
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Elodea canadensis

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About Elodea (Elodea canadensis) Elodea canadensis (American or Canadian Waterweed or Pondweed) is a perennial aquatic plant, or submergent macrophyte, native to most of North America. It was first recorded from the British Isles in about 1836. Native to most of North America. Widely naturalised in the British Isles (female plants only). In Ireland found at several sites along the Eglinton Canal, County Galway and Co. Down. and from the Lagan Canal near Lisburn, Ireland.
Plant Description
Plant Type
Perennial herb


Growth Rate

Flower Color

Flowering Season

Native Status

Natural Setting
Site Type
Shallow water, ditches, sloughs, ponds, lakes


Elevation ?
10' - 7742'

Annual Precip. ?
5.2" - 68.1"

Summer Precip. ?
0.18" - 2.49"

Coldest Month ?
26.0° F - 51.3° F

Hottest Month ?
55.6° F - 77.5° F

Humidity ?
0.71 vpd - 26.72 vpd

Soil Description
Does best in clay soils

Landscaping Information
Common uses
Bogs and Ponds

Nursery Availability
Never or Almost Never Available

Other Names
Common Names
Canadian Waterweed

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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