Spirodela is a genus of aquatic plants, one of several genera containing plants commonly called duckweed. Spirodela species are members of the Araceae under the APG II system.

Spirodela polyrhiza 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 0.5 to 1.0 cm wide.

Spirodela polyrrhiza (Giant Duckweed) is a free-floating, aquatic perennial forming a carpet of small, oval to rounded, deep glossy green leaves with a red dot on the top and dark red …

Greater Duckweed is a perennial aquatic plant found in slow-moving or still waters of ponds, bogs, lakes, and swamps all over the world. Nitrogen and other nutrients will be common to these …

2014年2月19日 · Here we select Spirodela polyrhiza for whole-genome sequencing. We show that Spirodela has a genome with no signs of recent retrotranspositions but signatures of two …

Three species of duckweed (Lemna minor, Lemna trisulca, and Spirodela polyrhiza) have all been used in western herbal medicine and as a food source. Since common duckweed (Lemna …

Like all Duckweed, the Spirodela is a popular food source for most water animals and birds. It is also a water-cleaner of sorts because of its love for nitrate and phosphate, which enables it to …

Spirodela polyrrhiza is the largest duckweed and has more roots than others in North America. Landoltia punctata usually has several roots, generally fewer than S. polyrrhiza, but, always …

Higher plants exhibit a remarkable phenotypic plasticity to adapt to adverse environmental changes. The greater duckweed Spirodela, an aquatic plant, presents exceptional tolerance to …

The Linnaean protologue of the basionym spelled the epithet as "polyrhiza" which is retained here, although Schleiden then changed the epithet to "polyrrhiza" when making the …