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Common Duckmeat
Spirodela polyrhiza
About Common Duckmeat (Spirodela polyrhiza) 0 Nurseries Carry This Plant Spirodela polyrhiza (orth. var. S. polyrrhiza) is a species of duckweed known by the common names common duckmeat, greater duckweed, common duckweed, and duckmeat. It can be found nearly worldwide in many types of freshwater habitat. It is a perennial aquatic plant usually growing in dense colonies, forming a mat on the water surface. Each plant is a smooth, round, flat disc one half to one centimeter wide. It produces several minute roots. It also produces a pouch containing male and female flowers. The top part dies in the fall and the plant often overwinters as a turion. Spirodela polyrhiza is an ideal system for biofuels, bioremediation and carbon cycling due to their aspects of fast-growing, direct contact with media and smallest genome size (~150 Mb). A comprehensive genomic study of Spirodela polyrhiza was published in February 2014. The results provide insights into how this organism is adapted to rapid growth and an aquatic lifestyle. Recorded, as Lemna polyrhiza L. , as mainly in the south and east of the British Isles. In Ireland it is found in counties Down, Antrim and Londonderry.
Plant Description
Plant Type
Plant Type
Perennial herb

Landscaping Information
Natural Setting
Annual Precipitation: 5.1" - 111.6", Summer Precipitation: 0.26" - 3.97", Coldest Month: 28.4" - 50.7", Hottest Month: 52.2" - 78.0", Humidity: 0.43" - 30.46", Elevation: 47" - 7085"

Alternative Names
Common Names: Common Duckweed, Dotted Duckmeat, Dotted Duckweed, Greater Duckweed

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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