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Polygonum arenastrum Boreau, Fl. Centre Fr. ed. 3, 2:559. 1857 (syn: Centinodia microsperma (Jord. ex Boreau) Fourr.; Polygonum acetosellum Klokov ex Kom.; Polygonum aequale Lindm.; Polygonum aequale subvar. parvulum Moss; Polygonum aequale var. platycarpum Koji Ito; Polygonum arenastrum subsp. calcatum (Lindm.) Wissk.; Polygonum arenastrum var. depressum (Meisn.) Franco & Rocha Afonso; Polygonum arenastrum subsp. microspermum (Jord. ex Boreau) H.Scholz; Polygonum arenastrum var. microspermum (Jord. ex Boreau) Franco & Rocha Afonso; Polygonum aviculare subsp. aequale (Lindm.) Asch. & Graebn.; Polygonum aviculare var. arenastrum (Boreau) Nyman; Polygonum aviculare subsp. calcatum (Lindm.) Thell.; Polygonum aviculare subsp. depressum (Meisn.) Arcang.; Polygonum aviculare var. depressum Meisn.; Polygonum berteroi Phil.; Polygonum calcatum Lindm.; Polygonum ebracteatum Munshi & Javeid; Polygonum lencoranicum Kom.; Polygonum maritimum Remy; Polygonum microspermum Jord. ex Boreau; Polygonum montereyense Brenckle; Polygonum parvulum (Moss) P.D.Sell; Polygonum planum Skvortsov; Polygonum propinquum Ledeb.; Polygonum prostratum Skvortsov; Polygonum pycnophyllum Gand.; Polygonum sparsiflorum Vorosch.; Polygonum suifunense Vorosch. & N.S.Pavlova);
. Macaronesia, NW. Africa, Temp. Eurasia: Afghanistan, Albania, Algeria, Altay, Amur, Austria, Azores, Baleares, Baltic States, Belarus, Belgium, Bulgaria, Buryatiya, Central European Rus, Chita, Corse, Czechoslovakia, Denmark, East Aegean Is., East European Russia, Finland, France, Germany, Greece, Hungary, Iran, Iraq, Irkutsk, Italy, Kamchatka, Khabarovsk, Krasnoyarsk, Kriti, Krym, Kuril Is., Madeira, Magadan, Manchuria, Mongolia, Morocco, Netherlands, North Caucasus, North European Russi, Northwest European R, Norway, Pakistan, Palestine, Poland, Portugal, Primorye, Romania, Sakhalin, Sardegna, Sicilia, Sinai, South European Russi, Spain, Sweden, Switzerland, Transcaucasus, Tunisia, Turkey, Turkey-in-Europe, Turkmenistan, Tuva, Ukraine, West Himalaya, West Siberia, Yakutskiya, Yugoslavia; Introduced into: Alabama, Alaska, Alberta, Arizona, Arkansas, British Columbia, California, Chile Central, Chile South, Colorado, Connecticut, Delaware, Florida, Georgia, Great Britain, Idaho, Illinois, Indiana, Iowa, Ireland, Kansas, Kentucky, Labrador, Louisiana, Maine, Manitoba, Maryland, Massachusetts, Mexico Northwest, Michigan, Minnesota, Missouri, Montana, Nebraska, Nevada, New Brunswick, New Hampshire, New Jersey, New Mexico, New York, New Zealand North, Newfoundland, North Carolina, North Dakota, Northwest Territorie, Nova Scotia, Ohio, Oklahoma, Ontario, Oregon, Pennsylvania, Prince Edward I., Québec, Rhode I., Saskatchewan, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming, Zimbabwe as per POWO; .
Polygonum arenastrum Boreau is closely similar to P. aviculare but easily identified by its procumbent more or less mat-forming habit, leaves more or less similar, perianth cleft half and nut 2-2.5 mm long.
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   Polygonaceae Fortnight: Polygonum arenastrum from Bhimtal, pl validate-GSMAY53: 3 posts by 3 authors. Attachments (3).
Polygonum arenastrum from Bhimtal, please validate. Looks very close to P. pleibium… Thanks for the upload.
Number of stamens in P. plebeium is 5. In the first photograph I can see more than 5 stamens. Moreover, acute leaf apex are matching with P. arenastrum. But still it would be better to see the nuts once, if possible.
I think the nut is close as per FoP illustration. .
Polygonaceae Fortnight: Polygonum arenastrum from Kashmir-GSMAY52: 2 posts by 2 authors. Attachments (4).
Polygonum arenastrum Boreau
syn: Polygonum aviculare var. arenastrum Meisn
Closely similar to P. aviculare but easily identified by its procumbent more or less mat-forming habit, leaves more or less similar, perianth cleft half and nut 2-2.5 mm long.
Photographed from Srinagar, Kashmir Thanks for sharing Sir! .
. References:
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