Marsilea quadrifolia

Family Marsileaceae
Scientific name Marsilea quadrifolia L.
Synonyms none
Common name (Japanese common name) den-ji-sou [rice paddy like square shaped weed]
(English common name) clover fern, European water clover, pepperwort, water clover, water shamrock
Distribution (Japan) Hokkaido, Honshu, Shikoku, Kyushu
(Other nations) Eastern Asia, India, Europe
Chromosomal number n=20, 2n=40
Description Leaves 4 leaflets each 1-2cm long, 1-2cm wide. Summer green. Water plants.
Reference Marsilea quadrifolia L.
Family Marsileaceae, genus Marsilea; world species list.
Herbicide (US Patent 3912494/1975)
Thiolcarbamates (US Patent 3984450/1976)
Azetidinyl carbothiolates (US Patent 4001217/1977)
Sulfites of aromatic glycolic amides (US Patent 4001292/1977)
Herbicidal compositions (US Patent 4030909/1977)
Substituted O-alkylsulfonylglycolic acid anilides (US Patent 4219493/1980)
Herbicidal amide compounds and their uses (US Patent 4657581/1987)
Antagonism inhibitors for herbicides, herbicide compositions and herbicidal methods (US Patent 5428000/1995)
Heterobicyclic herbicides (US Patent 5739326/1998)
Polynucleotides and polypeptides that confer increased biomass and tolerance to cold, water deprivation and low nitrogen to plants (US Patent 7196245/2007)
Human genome-derived single exon nucleic acid probes useful for analysis of gene expression in human placenta (WIPO Patent WO/2001/057272)
Stress-regulated genes of plants, transgenic plants containing same, and methods of use (WIPO Patent WO/2002/016655)
Methods for improving tree growth and wood properties (WIPO Patent WO/2006/040685)
Method of using abscisic acid to treat and prevent diseases and disorders (WIPO Patent WO/2007/092556)
Note Rare species.

April 2008
at Koishikawa Botanical Garden
April 2008
at Koishikawa Botanical Garden