Keys available in Flora of Pakistan and Flora of Peninsular India and Flora of China
.


As per efi thread:

Flowers in axillary clusters (stamens inflated at base, inner larger; nectaries absent or inconspicuous) …… Polygonum
Flowers in Panicles, Spikes or Heads (All stamens equal, not inflated at base; nectaries present and conspicuous)
Flowers in clusters forming panicle or flat-topped corymb ……. Koenigia
Flowers in well-defined spikes or heads
Plants rhizomatic perennials with prominent basal leaves; styles 3, free and elongate …. Bistorta
Plants annual, rarely perennials with rooting branches; leaves evenly distributed; style 1, bifid or trifid ….. Persicaria

.
Persicaria barbata (L.) H. Hara (Arabian Peninsula, Tropical & Subtropical Asia: Assam, Bangladesh, Bismarck Archipelago, Borneo, Cambodia, China South-Central, China Southeast, East Himalaya, Hainan, India, Iran, Jawa, Laccadive Is., Laos, Lesser Sunda Is., Malaya, Maluku, Myanmar, Nansei-shoto, Nepal, New Guinea, Pakistan, Philippines, Saudi Arabia, Solomon Is., Sri Lanka, Sumatera, Taiwan, Thailand, Vietnam, West Himalaya, Yemen as per POWO)

/wp-content/uploads/2020/10/P1030621.jpg/wp-content/uploads/2020/10/P1030622.jpg/wp-content/uploads/2020/10/P1030627.jpg/wp-content/uploads/2020/10/P1030623.jpg/wp-content/uploads/2020/10/P1030619.jpg/wp-content/uploads/2020/10/P1030620.jpg/wp-content/uploads/2020/10/P1030628.jpg/wp-content/uploads/2020/10/P1030626.jpg/wp-content/uploads/2020/10/P1030630.jpg/wp-content/uploads/2020/10/P1030625.jpg

Persicaria capitata (Buch.-Ham. ex D.Don) H.Gross (Indian Subcontinent to S. China and Indo-China: Assam, China South-Central, China Southeast, East Himalaya, India, Myanmar, Nepal, Pakistan, Sri Lanka, Thailand, Tibet, Vietnam, West Himalaya as per POWO)

/wp-content/uploads/2020/10/_MG_5495_07Apr2016.jpg/wp-content/uploads/2020/10/_MG_3272_07Oct14.jpg/wp-content/uploads/2020/10/_MG_5486_07Apr2016.jpg/wp-content/uploads/2020/10/_MG_5480_07Apr2016.jpg/wp-content/uploads/2020/10/_MG_3620_27Mar2016.jpg/wp-content/uploads/2020/10/_MG_5442_07Apr2016.jpg/wp-content/uploads/2020/10/_MG_3269_07Oct14.jpg/wp-content/uploads/2020/10/_MG_5433_07Apr2016.jpg/wp-content/uploads/2020/10/_MG_3619_27Mar2016.jpg/wp-content/uploads/2020/10/_MG_5443_07Apr2016.jpg/wp-content/uploads/2020/10/_MG_5471_07Apr2016.jpg

Persicaria chinensis (L.) H. Gross (Tropical & Subtropical Asia: Assam, Bangladesh, Cambodia, China North-Central, China South-Central, China Southeast, East Himalaya, Hainan, India, Jawa, Korea, Laos, Lesser Sunda Is., Malaya, Myanmar, Nansei-shoto, Nepal, Nicobar Is., Philippines, Sri Lanka, Taiwan, Thailand, Tibet, Vietnam, West Himalaya; Introduced into: Hawaii, Jamaica, Maryland, Massachusetts, New Jersey, Pakistan, Réunion as per POWO)

/wp-content/uploads/2020/10/dscn2527a.jpg/wp-content/uploads/2020/10/dscn2525.jpg

/wp-content/uploads/2020/10/_MG_9409_16Oct2016.jpg/wp-content/uploads/2020/10/_MG_9432_16Oct2016.jpg/wp-content/uploads/2020/10/_MG_9419_16Oct2016.jpg/wp-content/uploads/2020/10/_MG_9418_16Oct2016.jpg/wp-content/uploads/2020/10/_MG_9412_16Oct2016.jpg/wp-content/uploads/2020/10/_MG_9387_16Oct2016.jpg/wp-content/uploads/2020/10/_MG_9404_16Oct2016.jpg/wp-content/uploads/2020/10/_MG_9462_16Oct2016.jpg/wp-content/uploads/2020/10/_MG_9460_16Oct2016.jpg/wp-content/uploads/2020/10/_MG_9390_16Oct2016.jpg/wp-content/uploads/2020/10/_MG_9392_16Oct2016.jpg

/wp-content/uploads/2020/10/_DSC0366-8.JPG/wp-content/uploads/2020/10/_DSC0367-6.JPG/wp-content/uploads/2020/10/_DSC0365-2.JPG/wp-content/uploads/2020/10/_DSC0362-1-1.JPG/wp-content/uploads/2020/10/_DSC0363-8.JPG/wp-content/uploads/2020/10/_DSC0364-8.JPG

/wp-content/uploads/2020/10/Tender%20leaf%20of%20Red%20Knotweed-6.JPG/wp-content/uploads/2020/10/Red%20Knotweed%20-1-7.JPG/wp-content/uploads/2020/10/Red%20knotweed%20-3-1.JPG/wp-content/uploads/2020/10/Red%20knotweed-2-2.JPG

/wp-content/uploads/2020/10/persicaa%20flowers%20and%20fruit.JPG/wp-content/uploads/2020/10/persicaa%20inflorescence1.JPG/wp-content/uploads/2020/10/persicaa%20branch%20detail.JPG/wp-content/uploads/2020/10/persicaa%20branch.JPG/wp-content/uploads/2020/10/persicaa%20leaf.JPG/wp-content/uploads/2020/10/persicaa%20inflorescence2.JPG/wp-content/uploads/2020/10/persicaa%20fruit.JPG

Persicaria decipiens (R.Br.) K.L.Wilson (Tropical & Subtropical Old World to Australasia: Albania, Algeria, Angola, Assam, Baleares, Bangladesh, Benin, Botswana, Bulgaria, Burkina, Burundi, Cameroon, Canary Is., Cape Provinces, Cape Verde, Caprivi Strip, Central African Repu, Chad, Chatham Is., China Southeast, Congo, Corse, Cyprus, East Aegean Is., Egypt, Ethiopia, France, Free State, Gabon, Gambia, Ghana, Greece, Guinea, Gulf of Guinea Is., India, Iran, Iraq, Italy, Ivory Coast, Kenya, Kriti, KwaZulu-Natal, Lebanon-Syria, Lesotho, Liberia, Libya, Madeira, Malawi, Mali, Morocco, Mozambique, Myanmar, Namibia, New Guinea, New South Wales, New Zealand North, New Zealand South, Niger, Nigeria, Norfolk Is., Northern Provinces, Northern Territory, Palestine, Portugal, Queensland, Rwanda, Sardegna, Senegal, Sicilia, Sierra Leone, Somalia, South Australia, Spain, Sri Lanka, Sudan, Tanzania, Tasmania, Togo, Tunisia, Turkey, Turkey-in-Europe, Uganda, Victoria, Western Australia, Yemen, Zambia, Zaïre, Zimbabwe as per POWO)
/wp-content/uploads/2020/10/P.glabra_DSR.JPG/wp-content/uploads/2020/10/P.barbatum_Nuts_DSR_3.JPG/wp-content/uploads/2020/10/P.barbata_Ochrea_DSR_1.JPG/wp-content/uploads/2020/10/P.barbata_Ochreolae_DSR_2.JPG
/wp-content/uploads/2020/10/Persicaria-hydropiper-Near%20Dakpathar-DSC09197a.jpg/wp-content/uploads/2020/10/Persicaria-hydropiper-Near%20Dakpathar-DSC09192a.jpg/wp-content/uploads/2020/10/Persicaria-hydropiper-Near%20Dakpathar-DSC09196a.jpg/wp-content/uploads/2020/10/Persicaria-hydropiper-Near%20Dakpathar-DSC09188a.jpg/wp-content/uploads/2020/10/Persicaria-hydropiper-Near%20Dakpathar-DSC09200a.jpg


Persicaria dichotoma (Blume) Masam. (Indian Subcontinent to Nansei-shoto and W. & Central Malesia: Assam, Bangladesh, China Southeast, Hainan, India, Jawa, Laos, Malaya, Nansei-shoto, Philippines, Sri Lanka, Taiwan, Thailand, Vietnam as per POWO)

/wp-content/uploads/2020/10/DSC_0518%20-531x800-.jpg/wp-content/uploads/2020/10/DSC_0526%20-2-%20-800x577-.jpg/wp-content/uploads/2020/10/DSC_0526%20-800x531-.jpg/wp-content/uploads/2020/10/DSC_0519%20-800x531-.jpg/wp-content/uploads/2020/10/DSC_0523%20-800x531-.jpg/wp-content/uploads/2020/10/DSC_0528%20-800x531-.jpg/wp-content/uploads/2020/10/DSC_0530%20-800x531-.jpg/wp-content/uploads/2020/10/DSC_0532%20-800x531-.jpg/wp-content/uploads/2020/10/DSC_0535%20-800x531-.jpg/wp-content/uploads/2020/10/DSC_0517%20-800x531-.jpg

Persicaria glabra (Willd.) M.Gómez (New World, Central African Republic to Arabian Peninsula, Tropical & Subtropical Asia: Alabama, Argentina Northeast, Argentina Northwest, Arkansas, Assam, Bangladesh, Bolivia, Brazil South, Brazil Southeast, Brazil West-Central, Cayman Is., Central African Repu, China South-Central, China Southeast, Colombia, Cuba, Delaware, Dominican Republic, East Himalaya, Ethiopia, Florida, Georgia, Guatemala, Hainan, Haiti, Honduras, Illinois, India, Jamaica, Jawa, Kentucky, Louisiana, Maryland, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Mississippi, Missouri, Myanmar, Nepal, New Jersey, Nicaragua, North Carolina, Oman, Pakistan, Paraguay, Peru, Philippines, Puerto Rico, Saudi Arabia, Socotra, South Carolina, Sri Lanka, Sudan, Taiwan, Tennessee, Texas, Thailand, Uruguay, Venezuela, Vietnam, Virginia, West Himalaya, Yemen as per POWO) (All parts glabrous. Bracts not ciliate on the margins. Ocreae (A sheath formed at the node of a stem by the fusion of two stipules) 2-4cm long, tubular, glabrous, truncate at mouth)

/wp-content/uploads/2020/10/Persicaria%20glabra%20-Willd.-%20M%20-8-.JPG/wp-content/uploads/2020/10/Persicaria%20glabra%20-Willd.-%20M%20-7-.JPG/wp-content/uploads/2020/10/Persicaria%20glabra%20-Willd.-%20M%20-5-.JPG/wp-content/uploads/2020/10/Persicaria%20glabra%20-Willd.-%20M%20-6-.JPG/wp-content/uploads/2020/10/Persicaria%20glabra%20-Willd.-%20M%20-1-.JPG/wp-content/uploads/2020/10/Persicaria%20glabra%20-Willd.-%20M%20-12-.JPG/wp-content/uploads/2020/10/Persicaria%20glabra%20-Willd.-%20M%20-4-.JPG/wp-content/uploads/2020/10/Persicaria%20glabra%20-Willd.-%20M%20-3-.JPG/wp-content/uploads/2020/10/Persicaria%20glabra%20-Willd.-%20M%20-10-.JPG/wp-content/uploads/2020/10/Persicaria%20glabra%20-Willd.-%20M%20-13-.JPG/wp-content/uploads/2020/10/Persicaria%20glabra%20-Willd.-%20M%20-11-.JPG/wp-content/uploads/2020/10/Persicaria%20glabra%20-Willd.-%20M%20-2-.JPG/wp-content/uploads/2020/10/Persicaria%20glabra%20-Willd.-%20M%20-9-.JPG
/wp-content/uploads/2020/10/DSCN7150.jpg/wp-content/uploads/2020/10/DSCN7148.jpg/wp-content/uploads/2020/10/DSCN7158.jpg/wp-content/uploads/2020/10/DSCN7143.jpg/wp-content/uploads/2020/10/DSCN7140.jpg/wp-content/uploads/2020/10/DSCN7147.jpg/wp-content/uploads/2020/10/DSCN7144.jpg/wp-content/uploads/2020/10/DSCN7146.jpg/wp-content/uploads/2020/10/DSCN7142.jpg/wp-content/uploads/2020/10/DSCN7141.jpg


Persicaria greuteriana Galasso (Himalaya to China (Yunnan) and N. Thailand: China South-Central, East Himalaya, Nepal, Thailand, Tibet, West Himalaya as per POWO)

/wp-content/uploads/2020/10/_DSC0599-7.JPG/wp-content/uploads/2020/10/_DSC0602-3.JPG/wp-content/uploads/2020/10/_DSC0596-3.JPG/wp-content/uploads/2020/10/_DSC0600-3.JPG/wp-content/uploads/2020/10/_DSC0592.JPG/wp-content/uploads/2020/10/_DSC0604-5.JPG/wp-content/uploads/2020/10/_DSC0597-5.JPG/wp-content/uploads/2020/10/_DSC0603-8-9.JPG


Persicaria hydropiper (L.) Delarbre (Temp. Eurasia to W. & Central Malesia, NW. Africa: Afghanistan, Albania, Algeria, Altay, Amur, Andaman Is., Assam, Austria, Azores, Baltic States, Bangladesh, Belarus, Belgium, Bulgaria, Buryatiya, Central European Rus, China South-Central, China Southeast, Chita, Corse, Czechoslovakia, Denmark, East European Russia, East Himalaya, Finland, France, Germany, Great Britain, Greece, Hainan, Hungary, India, Inner Mongolia, Iran, Ireland, Irkutsk, Italy, Japan, Jawa, Kazakhstan, Khabarovsk, Kirgizstan, Korea, Krasnoyarsk, Krym, Kuril Is., Madeira, Malaya, Manchuria, Mongolia, Morocco, Myanmar, Nepal, Netherlands, Nicobar Is., North Caucasus, North European Russi, Northwest European R, Norway, Ogasawara-shoto, Pakistan, Philippines, Poland, Portugal, Primorye, Qinghai, Romania, Sakhalin, Sardegna, Sicilia, South European Russi, Spain, Sri Lanka, Sumatera, Sweden, Switzerland, Tadzhikistan, Taiwan, Thailand, Tibet, Transcaucasus, Turkey, Turkey-in-Europe, Tuva, Ukraine, Uzbekistan, Vietnam, West Himalaya, West Siberia, Xinjiang, Yugoslavia as per POWO)

/wp-content/uploads/2020/10/Persicaria-lapathifolia-confirm-Nagin-DSC06185a.jpg/wp-content/uploads/2020/10/Persicaria-lapathifolia-confirm-Nagin-DSC06194a.jpg/wp-content/uploads/2020/10/Persicaria-lapathifolia-confirm-Nagin-DSC06192a.jpg/wp-content/uploads/2020/10/Persicaria-lapathifolia-confirm-Nagin-DSC06184a.jpg

/wp-content/uploads/2020/10/P1030097.jpg/wp-content/uploads/2020/10/P1030092.jpg/wp-content/uploads/2020/10/P1030090.jpg/wp-content/uploads/2020/10/P1030102.jpg/wp-content/uploads/2020/10/P1030100.jpg/wp-content/uploads/2020/10/P1030087.jpg/wp-content/uploads/2020/10/P1030095.jpg

/wp-content/uploads/2020/10/_MG_5143_26Aug2017.jpg/wp-content/uploads/2020/10/_MG_5140_26Aug2017.jpg/wp-content/uploads/2020/10/_MG_5118_26Aug2017.jpg/wp-content/uploads/2020/10/_MG_5468_26Aug2017.jpg/wp-content/uploads/2020/10/_MG_5013_26Aug2017.jpg/wp-content/uploads/2020/10/_MG_5469_26Aug2017.jpg/wp-content/uploads/2020/10/_MG_5150_26Aug2017.jpg/wp-content/uploads/2020/10/_MG_5017_26Aug2017.jpg/wp-content/uploads/2020/10/_MG_5123_26Aug2017.jpg/wp-content/uploads/2020/10/_MG_5127_26Aug2017.jpg/wp-content/uploads/2020/10/_MG_5114_26Aug2017.jpg/wp-content/uploads/2020/10/_MG_5038_26Aug2017.jpg/wp-content/uploads/2020/10/_MG_5475_26Aug2017.jpg/wp-content/uploads/2020/10/_MG_5000_26Aug2017.jpg

Persicaria lanata (Roxb.) N. N. Tsvelev (Bulgaria to Caucasus, NW. Pakistan to NW. India and Myanmar: Assam, Bangladesh, Bulgaria, East Himalaya, India, Myanmar, North Caucasus, Pakistan, South European Russi, West Himalaya as per POWO)

/wp-content/uploads/2020/10/P.lapathifolia_DSR_2.JPG/wp-content/uploads/2020/10/P.lapathifolia_DSR.JPG


Persicaria limbata (Meisn.) H.Hara (Africa, Indian Subcontinent: Angola, Bangladesh, Benin, Botswana, Burkina, Cameroon, Cape Provinces, Caprivi Strip, Chad, Congo, Egypt, Ethiopia, Free State, Guinea, India, Ivory Coast, Malawi, Mali, Mauritania, Mozambique, Namibia, Nepal, Niger, Nigeria, Northern Provinces, Senegal, Sudan, Tanzania, Uganda, West Himalaya, Zambia, Zaïre, Zimbabwe as per POWO)

/wp-content/uploads/2020/10/Persicaria_29dec12_DSCN0154.jpg/wp-content/uploads/2020/10/Persicaria_29dec12_DSCN0156.jpg/wp-content/uploads/2020/10/Persicaria_29dec12_DSCN0160.jpg/wp-content/uploads/2020/10/Persicaria_29dec12_DSCN0157.jpg


Persicaria lapathifolia (L.) Delarbre (Subarctic & Temp. Northern Hemisphere to W. & Central Malesia, N. Africa to Ethiopia: Afghanistan, Alabama, Alaska, Albania, Alberta, Algeria, Altay, Amur, Arizona, Arkansas, Ascension, Assam, Austria, Azores, Baleares, Baltic States, Bangladesh, Belarus, Belgium, Bulgaria, Buryatiya, California, Central European Rus, China North-Central, China South-Central, China Southeast, Chita, Colorado, Connecticut, Corse, Cyprus, Czechoslovakia, Delaware, Denmark, District of Columbia, East Aegean Is., East European Russia, East Himalaya, Egypt, Ethiopia, Finland, Florida, France, Føroyar, Georgia, Germany, Great Britain, Greece, Greenland, Hainan, Hungary, Idaho, Illinois, India, Indiana, Inner Mongolia, Iowa, Iran, Iraq, Ireland, Irkutsk, Italy, Jawa, Kamchatka, Kansas, Kazakhstan, Kentucky, Khabarovsk, Kirgizstan, Korea, Krasnoyarsk, Kriti, Krym, Kuril Is., Labrador, Lebanon-Syria, Louisiana, Madeira, Magadan, Maine, Manchuria, Manitoba, Maryland, Massachusetts, Mexico Central, Mexico Southwest, Michigan, Minnesota, Mississippi, Missouri, Mongolia, Montana, Morocco, Myanmar, Nebraska, Nepal, Netherlands, Nevada, New Brunswick, New Guinea, New Hampshire, New Jersey, New Mexico, New York, Newfoundland, North Carolina, North Caucasus, North Dakota, North European Russi, Northwest European R, Northwest Territorie, Norway, Ohio, Oklahoma, Ontario, Oregon, Pakistan, Palestine, Pennsylvania, Philippines, Poland, Portugal, Primorye, Prince Edward I., Qinghai, Québec, Rhode I., Romania, Sakhalin, Sardegna, Saskatchewan, Sicilia, South Carolina, South Dakota, South European Russi, Spain, Sumatera, Sweden, Switzerland, Tadzhikistan, Taiwan, Tennessee, Texas, Thailand, Tibet, Transcaucasus, Tunisia, Turkey, Turkey-in-Europe, Turkmenistan, Tuva, Ukraine, Utah, Uzbekistan, Vermont, Vietnam, Virginia, Washington, West Himalaya, West Siberia, West Virginia, Wisconsin, Wyoming, Xinjiang, Yakutskiya, Yemen, Yugoslavia, Yukon as per POWO)

/wp-content/uploads/2020/10/Persicaria-lapathifolia-Kashmir-b.jpg/wp-content/uploads/2020/10/Persicaria-lapathifolia-Kashmir-a.jpg/wp-content/uploads/2020/10/Persicaria-lapathifolia-Kashmir-c.jpg
/wp-content/uploads/2020/10/DSC_0194-3-0.JPG/wp-content/uploads/2020/10/CSC_0219-2-9.JPG/wp-content/uploads/2020/10/DSC_0192-3-6.JPG/wp-content/uploads/2020/10/DSC_0193-9-0.JPG/wp-content/uploads/2020/10/CSC_0221-5.JPG/wp-content/uploads/2020/10/CSC_0220-0.JPG


Persicaria lapathifolia ?

       


Persicaria longiseta (Bruijn) Kitag. (Pakistan to Russian Far East and Philippines: Amur, China North-Central, China South-Central, China Southeast, India, Japan, Jawa, Khabarovsk, Korea, Krasnoyarsk, Kuril Is., Manchuria, Mongolia, Myanmar, Nepal, Pakistan, Philippines, Primorye, Sakhalin, Taiwan, Tibet, Tuva, West Himalaya, West Siberia as per POWO)

/wp-content/uploads/2020/10/IMG_0197.JPG/wp-content/uploads/2020/10/IMG_0200.JPG/wp-content/uploads/2020/10/IMG_0193-2.JPG/wp-content/uploads/2020/10/IMG_0194-0.JPG/wp-content/uploads/2020/10/IMG_0198-1.JPG


Persicaria maculosa Gray (Temp. Eurasia, N. Africa: Afghanistan, Albania, Algeria, Altay, Amur, Austria, Azores, Baleares, Baltic States, Belarus, Belgium, Bulgaria, Central European Rus, China North-Central, China South-Central, China Southeast, Corse, Czechoslovakia, Denmark, East European Russia, East Himalaya, Egypt, Finland, France, Germany, Great Britain, Greece, Hungary, Inner Mongolia, Iran, Iraq, Ireland, Irkutsk, Italy, Japan, Kazakhstan, Kirgizstan, Korea, Krasnoyarsk, Krym, Laos, Lebanon-Syria, Madeira, Manchuria, Morocco, Nepal, Netherlands, North Caucasus, North European Russi, Northwest European R, Norway, Pakistan, Poland, Portugal, Qinghai, Romania, Sardegna, Saudi Arabia, Sicilia, South European Russi, Spain, Sweden, Switzerland, Tadzhikistan, Transcaucasus, Tunisia, Turkey, Turkey-in-Europe, Turkmenistan, Ukraine, Uzbekistan, Vietnam, West Himalaya, West Siberia, Xinjiang, Yemen, Yugoslavia as per POWO)

/wp-content/uploads/2020/10/_MG_1331_03Aug2016.jpg/wp-content/uploads/2020/10/_MG_5380_26Aug2017.jpg/wp-content/uploads/2020/10/_MG_5371_26Aug2017.jpg/wp-content/uploads/2020/10/_MG_5407_26Aug2017.jpg/wp-content/uploads/2020/10/_MG_5368_26Aug2017.jpg/wp-content/uploads/2020/10/_MG_5356_26Aug2017.jpg/wp-content/uploads/2020/10/_MG_5345_26Aug2017.jpg/wp-content/uploads/2020/10/_MG_5341_26Aug2017.jpg/wp-content/uploads/2020/10/_MG_5183_26Aug2017.jpg/wp-content/uploads/2020/10/_MG_5338_26Aug2017.jpg


Persicaria microcephala (D. Don) H. Gross (Himalaya to Central & E. Central China: Assam, Bangladesh, China North-Central, China South-Central, China Southeast, East Himalaya, India, Nepal, Tibet, West Himalaya as per POWO)

/wp-content/uploads/2020/10/DSC_1266.JPG/wp-content/uploads/2020/10/CSC_0085.JPG/wp-content/uploads/2020/10/DSC_1271-0.JPG/wp-content/uploads/2020/10/DSC_1272.JPG/wp-content/uploads/2020/10/DSC_1262.JPG/wp-content/uploads/2020/10/CSC_0084.JPG/wp-content/uploads/2020/10/DSC_1264.JPG/wp-content/uploads/2020/10/DSC_1269-3.JPG/wp-content/uploads/2020/10/DSC_1270.JPG
/wp-content/uploads/2020/10/DSC_0941-2.JPG/wp-content/uploads/2020/10/DSC_0943-7-2.JPG/wp-content/uploads/2020/10/DSC_0944-2-2.JPG

Persicaria minor (Huds.) Opiz (Eurasia to NW. Pacific: Altay, Amur, Assam, Austria, Baltic States, Bangladesh, Belarus, Belgium, Bulgaria, Buryatiya, Caroline Is., Central European Rus, Chita, Czechoslovakia, Denmark, East European Russia, Finland, France, Germany, Great Britain, Greece, Hungary, Iran, Ireland, Irkutsk, Italy, Kazakhstan, Khabarovsk, Kirgizstan, Krasnoyarsk, Krym, Laos, Malaya, Marianas, Nepal, Netherlands, New Guinea, North Caucasus, North European Russi, Northwest European R, Norway, Pakistan, Philippines, Poland, Primorye, Romania, Solomon Is., South European Russi, Spain, Sri Lanka, Sweden, Switzerland, Tadzhikistan, Taiwan, Thailand, Transcaucasus, Turkey, Tuva, Ukraine, Uzbekistan, Vietnam, West Himalaya, West Siberia, Yugoslavia as per POWO)

/wp-content/uploads/2020/10/101911_5282.jpg/wp-content/uploads/2020/10/101911_5283.jpg
/wp-content/uploads/2020/10/Persicaria-minor-Manali-23-10-DSC06851a.jpg/wp-content/uploads/2020/10/Persicaria-minor-Manali-3.jpg/wp-content/uploads/2020/10/Persicaria-minor-Manali-2.jpg/wp-content/uploads/2020/10/Persicaria-minor-Manali-1.jpg

Persicaria mitis (Schrank) Holub (Europe to W. Himalaya: Afghanistan, Albania, Austria, Baltic States, Belarus, Belgium, Bulgaria, Corse, Czechoslovakia, East European Russia, France, Germany, Great Britain, Greece, Hungary, Iran, Italy, Netherlands, Northwest European R, Pakistan, Poland, Romania, Sardegna, Sicilia, Spain, Switzerland, Transcaucasus, Ukraine, West Himalaya, Yugoslavia as per POWO)

/wp-content/uploads/2020/10/Persicaria-mitis-Dachhigam-DSC07172a.jpg/wp-content/uploads/2020/10/Persicaria-mitis-Dachhigam-DSC07167a.jpg/wp-content/uploads/2020/10/Persicaria-mitis-Dachhigam-DSC07177a.jpg/wp-content/uploads/2020/10/Persicaria-mitis-Dachhigam-DSC07165a.jpg/wp-content/uploads/2020/10/Persicaria-mitis-Dachhigam-DSC07164a.jpg
/wp-content/uploads/2020/10/DSCN8496.jpg/wp-content/uploads/2020/10/DSCN8500-9.jpg/wp-content/uploads/2020/10/DSCN8486-8.jpg/wp-content/uploads/2020/10/DSCN8495-3.jpg/wp-content/uploads/2020/10/DSCN8494.jpg


Persicaria nepalensis (Meisn.) Miyabe (Eritrea to KwaZulu-Natal, Madagascar, Tropical & Subtropical Asia: Afghanistan, Assam, Burundi, Cameroon, China North-Central, China South-Central, China Southeast, East Himalaya, Eritrea, Ethiopia, Gulf of Guinea Is., Hainan, India, Inner Mongolia, Jawa, Kenya, Khabarovsk, Korea, Kuril Is., KwaZulu-Natal, Laos, Madagascar, Malawi, Malaya, Manchuria, Myanmar, Nepal, New Guinea, Northern Provinces, Pakistan, Philippines, Primorye, Qinghai, Rwanda, Sakhalin, Sri Lanka, Sudan, Tadzhikistan, Taiwan, Tanzania, Thailand, Tibet, Uganda, Vietnam, West Himalaya, Yemen, Zambia, Zaïre as per POWO)

/wp-content/uploads/2020/10/Polygonaceae%20-1-.jpg/wp-content/uploads/2020/10/Polygonaceae%20-8-.jpg/wp-content/uploads/2020/10/Polygonaceae%20-2-.jpg/wp-content/uploads/2020/10/Polygonaceae.jpg/wp-content/uploads/2020/10/Polygonaceae%20-3-.jpg/wp-content/uploads/2020/10/Polygonaceae%20-4-.jpg/wp-content/uploads/2020/10/Polygonaceae%20-6-.jpg/wp-content/uploads/2020/10/Polygonaceae%20-5-.jpg/wp-content/uploads/2020/10/Polygonaceae%20-7-.jpg
/wp-content/uploads/2020/10/DSC_0776-2.JPG/wp-content/uploads/2020/10/DSC_0777-2-8-3.JPG/wp-content/uploads/2020/10/DSC_0779-7-3.JPG/wp-content/uploads/2020/10/DSC_0783-8.JPG/wp-content/uploads/2020/10/DSC_0778-2.JPG/wp-content/uploads/2020/10/DSC_0781-2.JPG/wp-content/uploads/2020/10/DSC_0170-6.JPG

/wp-content/uploads/2020/10/DSC_0934.JPG/wp-content/uploads/2020/10/DSC_0933-8.JPG/wp-content/uploads/2020/10/DSC_0932.JPG/wp-content/uploads/2020/10/DSC_0937.JPG/wp-content/uploads/2020/10/DSC_0936.JPG/wp-content/uploads/2020/10/DSC_0930.JPG/wp-content/uploads/2020/10/DSC_0935-9.JPG/wp-content/uploads/2020/10/DSC_0931.JPG

/wp-content/uploads/2020/10/Persicaria%20nepalensis-%20white%20-1-.JPG/wp-content/uploads/2020/10/Persicaria%20nepalensis-%20white%20-8--7.JPG/wp-content/uploads/2020/10/Persicaria%20nepalensis-%20white%20-6-.JPG/wp-content/uploads/2020/10/Persicaria%20nepalensis-%20white%20-5-.JPG/wp-content/uploads/2020/10/Persicaria%20nepalensis-%20white%20-7-.JPG
/wp-content/uploads/2020/10/_MG_9811_15August15.jpg/wp-content/uploads/2020/10/_MG_9670_15August15.jpg/wp-content/uploads/2020/10/_MG_9807_15August15.jpg/wp-content/uploads/2020/10/_MG_9671_15August15.jpg/wp-content/uploads/2020/10/_MG_9818_15August15.jpg/wp-content/uploads/2020/10/_MG_9928_16August15.jpg

Persicaria orientalis (L.) Spach (India to Russian Far East and N. & E. Australia: Amur, Assam, Bangladesh, Cambodia, China North-Central, China South-Central, China Southeast, East Himalaya, Hainan, India, Japan, Jawa, Khabarovsk, Korea, Lesser Sunda Is., Malaya, Manchuria, Myanmar, New Guinea, New South Wales, Northern Territory, Philippines, Primorye, Queensland, Sri Lanka, Taiwan, Thailand, Vietnam, West Himalaya as per POWO) (Tubular ochrea with leaf like wings are suggesting this to be Persicaria orientalis (L.) Spach)

/wp-content/uploads/2020/10/mOLhlpX1lkYPPIKFSiu59jpiBocQFGOvANFMlvnQ8XqTb041Xa63MGBCZmIMp9Zahv_-ihb1zIeWuk_IP6948KOgtKdCKTKi5xWvrDsib1VubdfnLe0.jpg/wp-content/uploads/2020/10/6tZhEBZgN8YipHtP6IpqNpdGaI3Emf-YS9xTsBQapBDLiD8eBIyJ1yYDAtQECmtq5WRKjTRhsUnqhMiKxWbxkuJXvtAfU_PzTihOxBTNA8wORJ-ts60.jpg/wp-content/uploads/2020/10/TjX0vm1U3iUE5tn7k8CdWfWJzot_CWqX64uFrkMGDsZeq0Q3or62a68jveW4rFTVx4-94fg_IY9BQWKjGm33JxYXqxnO_U12SxUcNH-fApnAApCnFc8.jpg/wp-content/uploads/2020/10/DSCN2764.jpg/wp-content/uploads/2020/10/10Uq_YEfWKZHViqib97diKCLqRrvBPRs6rNilXY-_LeCD0mwb4FT0vIbLIzNguv8GonIYL6fDdfuxtEoN3Ot2x9PfuAxn2MUTUC-CEQqkQPq_Tl4xIw.jpg/wp-content/uploads/2020/10/cszRFk4-BNhdoRD6AlefFMXcdD8m71Kwj1d1OS-3ex_0tDnOuHEjWSnD2oCkI732wWULEqKoJPTb1PkiI0R-Dex3M6gNqk1d6IoSSCK_xCyyKfJYjS4.jpg

/wp-content/uploads/2020/10/Persicaria-orientalis-Kashmir-b.jpg/wp-content/uploads/2020/10/Persicaria-orientalis-Kashmir-d.jpg/wp-content/uploads/2020/10/Persicaria-orientalis-Kashmir-c.jpg/wp-content/uploads/2020/10/Persicaria-orientalis-Kashmir-a.jpg


Persicaria perfoliata (L.) H. Gross (NE. Turkey to Russian Far East and New Guinea: Amur, Assam, Bangladesh, China North-Central, China South-Central, China Southeast, East Himalaya, Hainan, India, Inner Mongolia, Japan, Jawa, Khabarovsk, Korea, Malaya, Manchuria, Nepal, New Guinea, Philippines, Primorye, Sakhalin, Taiwan, Thailand, Transcaucasus, Turkey, Vietnam, West Himalaya as per POWO)

/wp-content/uploads/2020/10/Spinous%20herb%20for%20id%20-7-.JPG/wp-content/uploads/2020/10/Spinous%20herb%20for%20id%20-6-.JPG/wp-content/uploads/2020/10/Spinous%20herb%20for%20id%20-2-.JPG/wp-content/uploads/2020/10/Spinous%20herb%20for%20id%20-5-.JPG
/wp-content/uploads/2020/10/Persicaria%20perfoliata%20-L.-%20H.%20Gross%20-11-.JPG/wp-content/uploads/2020/10/Persicaria%20perfoliata%20-L.-%20H.%20Gross%20-17-.JPG/wp-content/uploads/2020/10/Persicaria%20perfoliata%20-L.-%20H.%20Gross%20-10-.JPG


Persicaria posumbu (Buch.-Ham. ex D. Don) H. Gross (Himalaya to Russian Far East and Philippines: Assam, Bangladesh, China North-Central, China South-Central, China Southeast, East Himalaya, Hainan, Japan, Korea, Kuril Is., Laos, Malaya, Manchuria, Myanmar, Nepal, Philippines, Primorye, Taiwan, Thailand, Tibet, Vietnam, West Himalaya as per POWO)
/wp-content/uploads/2020/10/DSC_4440.jpg/wp-content/uploads/2020/10/DSC_4441.jpg/wp-content/uploads/2020/10/DSC_4455.jpg
/wp-content/uploads/2020/10/_DSC0441-2.JPG/wp-content/uploads/2020/10/_DSC0440-2.JPG/wp-content/uploads/2020/10/_DSC0438-1.JPG/wp-content/uploads/2020/10/_DSC0439-5.JPG/wp-content/uploads/2020/10/_DSC0437-3.JPG/wp-content/uploads/2020/10/_DSC0436-6.JPG/wp-content/uploads/2020/10/_DSC0434-1-4.JPG/wp-content/uploads/2020/10/_DSC0433-4.JPG


Persicaria pubescens (Blume) H. Hara (Indian Subcontinent to Japan and W. Malesia: Assam, Bangladesh, Cambodia, China North-Central, China South-Central, China Southeast, East Himalaya, Hainan, India, Japan, Jawa, Korea, Laos, Malaya, Manchuria, Nepal, Pakistan, Sumatera, Taiwan, Thailand, Vietnam, West Himalaya as per POWO) 

/wp-content/uploads/2020/10/DSC_0543-5-8.JPG/wp-content/uploads/2020/10/DSC_0538-4-9.JPG/wp-content/uploads/2020/10/DSC_0545-3-8.JPG/wp-content/uploads/2020/10/DSC_0546-8-8.JPG/wp-content/uploads/2020/10/DSC_0537-3.JPG/wp-content/uploads/2020/10/DSC_0542-4-9.JPG/wp-content/uploads/2020/10/DSC_0549-2-8.JPG/wp-content/uploads/2020/10/DSC_0548-3-5-8.JPG/wp-content/uploads/2020/10/polygonum%20posumbi_2.JPG/wp-content/uploads/2020/10/polygonum%20posumbi_1.JPG
/wp-content/uploads/2020/10/CSC_0445.JPG/wp-content/uploads/2020/10/DSC_0107-7-2.JPG/wp-content/uploads/2020/10/DSC_0112-0-3.JPG/wp-content/uploads/2020/10/DSC_0109-4-8-0.JPG

Persicaria pulchra (Bl.) Sojak (India to SE. China and W. & Central Malesia: Andaman Is., Assam, Cambodia, China Southeast, India, Jawa, Laos, Malaya, Myanmar, Philippines, Sri Lanka, Taiwan, Thailand, Vietnam as per POWO)

               


Persicaria runcinata (Buch.-Ham. ex D. Don) Masam. (Himalaya to Taiwan and W. Malesia: Assam, China North-Central, China South-Central, China Southeast, East Himalaya, Jawa, Myanmar, Nepal, Philippines, Sumatera, Taiwan, Thailand, Tibet, Vietnam, West Himalaya as per POWO) (Pinnatifid leaves are characteristic)

/wp-content/uploads/2020/10/4._Polygonum_runcinatum_Buch.-Ham._ex_D._Don_-_Flower_IMG_3368.jpg/wp-content/uploads/2020/10/2._Polygonum_runcinatum_Buch.-Ham._ex_D._Don__-_Leaf_IMG_3372.jpg/wp-content/uploads/2020/10/6._Polygonum_runcinatum_Buch.-Ham._ex_D._Don._-_Flower_IMG_3371.jpg/wp-content/uploads/2020/10/5._Polygonum_runcinatum_Buch.-Ham._ex_D._Don__-_Flower_IMG_3369.jpg/wp-content/uploads/2020/10/3._Polygonum_runcinatum_Buch.-Ham._ex_D._Don__IMG_3370.jpg/wp-content/uploads/2020/10/1._Polygonum_runcinatum_Buch.-Ham._ex_D._Don__IMG_3373.jpg

Persicaria sinuata (Royle ex Bab.) Rajbh. & R.Joshi (East Himalaya, West Himalaya as per POWO)
(As per efi thread: This species is often confused with its very closely related sister species known from Eastern Himalayas (P. runcinatafrom which it is different in having much smaller size of all parts including leaves, creeping habit not erect and almost glabrous nature except peduncle which is sometimes puberulent. Also the inflorescence heads are generally darker pink in P. sinuata and mostly (but not always) pale rosa in P.runcinata.)
    


Persicaria stagnina (Buch.-Ham. ex Meisn.) Qaiser (Indian Subcontinent to Peninsula Malaysia: Assam, Bangladesh, East Himalaya, India, Malaya, Myanmar, Pakistan, Thailand, West Himalaya as per POWO)

/wp-content/uploads/2020/10/P1170949%20-2-.JPG/wp-content/uploads/2020/10/P1200399.JPG/wp-content/uploads/2020/10/P1170949.JPG/wp-content/uploads/2020/10/P1200410.JPG/wp-content/uploads/2020/10/P1200408.JPG/wp-content/uploads/2020/10/P1200407.JPG/wp-content/uploads/2020/10/P1200400.JPG/wp-content/uploads/2020/10/P1200395.JPG/wp-content/uploads/2020/10/P1200397.JPG

Persicaria viscosa (Buch.-Ham. ex D. Don) Nakai (Himalaya to Russian Far East and Temp. E. Asia: Assam, Bangladesh, China North-Central, China South-Central, China Southeast, Khabarovsk, Korea, Laos, Manchuria, Nepal, Primorye, Taiwan, Thailand, Vietnam as per POWO)

/wp-content/uploads/2020/10/6._Persicaria__Polygonum_Sp._IMG_5762-7.jpg/wp-content/uploads/2020/10/10._Persicaria__Polygonum_Sp._IMG_5761.jpg/wp-content/uploads/2020/10/7._Persicaria__Polygonum_Sp._IMG_5755-9.jpg/wp-content/uploads/2020/10/8._Persicaria__Polygonum_Sp._IMG_5757-4.jpg/wp-content/uploads/2020/10/2._Persicaria__Polygonum_Sp._IMG_5747-3.jpg/wp-content/uploads/2020/10/9._Persicaria__Polygonum_Sp._IMG_5760-5.jpg/wp-content/uploads/2020/10/4._Persicaria__Polygonum_Sp._IMG_5748-9.jpg/wp-content/uploads/2020/10/5._Persicaria__Polygonum_Sp._IMG_5752.jpg/wp-content/uploads/2020/10/1._Persicaria__Polygonum_Sp.IMG_5763-4.jpg

Treatments of Polygonum and related genera (subfamily Polygonoideae) those by Haraldson and Ronse Decraene & Akeroyd, have segregated species of Polygonum in the broad sense adopted into two separate tribes, Polygoneae and Persicarieae. The remainder of Polygonum in the broad sense is generally assigned to Persicaria (or a varying number of segregate genera, such as Aconogonon and Bistorta) which, with Antenoron and Koenigia, comprises the tribe Persicarieae.
Characters for segregation of Two species:
Polygonum: . Flowers axillary, solitary or in small clusters, sometimes forming lax leafy spikes. Perianth (4- or)5-parted, not enlarged in fruit. Stamens 5-8, reduced in number in outer whorl; filaments, especially the inner, strongly dilated at base.
Persicaria: Inflorescence spicate, spikes usually several. Tepals fused for about 1/3 their length. Nectaries free, globular. Styles 1, bifid or trifid.

.

From Floral Database of Tamilnadu : 

Binomial Habit Notes Ref. Distrib.
Persicaria attenuata ( R.Br. ) Sojak subsp. pulchra ( Blume ) K.L.Wilson (Syn: Polygonum pulchrum Blume ) Herb Aquatic Flora of Tamil
Nadu, VOL. II, 1987
Coimbatore,
Theni, Tirunelveli, Vellore
 
Persicaria barbata ( L. ) H.Hara var. barbata Herb Plains
to Mid Altitude, Aquatic
Flora
of Tamil Nadu, VOL. II, 1987
Coimbatore,
Cuddalore, Kanniya kumari, Madurai, Nilgiri,
Theni, Tirunelveli, Tiruvanna malai 
Persicaria barbata ( L. ) Hara var. gracilis (
Danser ) H.Hara
Herb Plains
to Mid Altitude, Aquatic
Flora
of Tamil Nadu, VOL. II, 1987
Coimbatore,
Dindigul, Theni 
 
Persicaria barbata ( L. ) Hara var. stagnina (  Buch.-Ham. ex Meisn.) S.K.Dixit , B.Datt & G.P.Roy is a synonym of Persicaria stagnina (Buch.-Ham. ex Meisn.) Qaiser Under shrub Plains,
Aquatic 
Flora
of Tamil Nadu, VOL. II, 1987; Fischer 1921
Coimbatore  
Persicaria capitata ( Buch.-Ham. ex D.Don ) H.Gross Herb Western
Ghats, Evergreen Forests
Flora
of Tamil Nadu, VOL. II, 1987
Nilgiri  
Persicaria chinensis ( L. ) H.Gross Under shrub Western
Ghats & Eastern Ghats, Moist Deciduous to Evergreen Forests
Flora
of Tamil Nadu, VOL. II, 1987
Coimbatore,
Dindigul, Kanniya kumari, Namakkal, Nilgiri,
Salem, Theni, Tirunelveli
 
Persicaria dichotoma (Blume) S.K.Dixit , B.Datt & G.P.Roy Herb Western
Ghats, Evergreen Forests
Flora
of Tamil Nadu, VOL. II, 1987
Nilgiri,
Theni
 
Persicaria hydropiper ( L. ) Spach subsp. flaccida ( Meisn. ) Munshi &
Javeid
Herb Western
Ghats, Evergreen Forests, Marsh Localities
Flora
of Tamil Nadu, VOL. II, 1987
Coimbatore,
Dindigul, Nilgiri, Theni
 
Persicaria hydropiper (L.) Spach var. hydropiper  Herb Western
Ghats, Evergreen Forests, Marsh Localities
Flora
of Tamil Nadu, VOL. II, 1987; Gamble 1957
Coimbatore,  Dindigul,
Nilgiri
 
Persicaria lapathifolia (L.) Gray var. lanigera (
R.Br.) Chantar. & Tubtimtong
Creep ing
Herb
Western
Ghats, Evergreen Forests, Marsh Localities
Flora
of Tamil Nadu, VOL. II, 1987; Gamble 1957
Coimbatore  
Persicaria nepalensis ( Meisn. ) H.Gross Herb Western
Ghats, Evergreen Forests/ Naturalized, Native of Himalayas
Flora
of Tamil Nadu, VOL. II, 1987; Gage 1903
Coimbatore,
Dindigul, Kanniya kumari, Nilgiri, Theni 
Persicaria peduncularis (Meissner) Nemato is a synonym of Persicaria dichotoma (Blume) Masam. Herb Eastern
Ghats, Marsh Localities
  Salem  

From Floral Database of Tamilnadu :

Binomial Habit Notes Ref. Distrib.
Polygonum dichotomum Blume (= Persicaria dichotoma (Blume) Masam.) var. angustissima (Hook.f.) Chandrasekaran Herb Western Ghats, Evergreen Forests Flora of Tamil Nadu, VOL. II, 1987 Nilgiri
Polygonum dichotomum Blume (= Persicaria dichotoma (Blume) Masam.) var. nilagirica (Hook.f.) Chandrasekaran Herb Western Ghats, Evergreen Forests Flora of Tamil Nadu, VOL. II, 1987; Gage 1903 Dindigul, Nilgiri
Polygonum dichotomum Blume (= Persicaria dichotoma (Blume) Masam.) var. robusta (Hook.f.) Chandrasekaran Herb Western Ghats & Eastern Ghats, Evergreen Forests Flora of Tamil Nadu, VOL. II, 1987 Nilgiri, Salem, Theni
Polygonum glabrum Willd. var. glabrum = Persicaria glabra (Willd.) M. Gómez Herb Plains, Aquatic Flora of Tamil Nadu, VOL. II, 1987 All districts
Polygonum glabrum Willd. var. scabrinervis Hook.f. Herb Western Ghats, Evergreen Forests Flora of Tamil Nadu, VOL. II, 1987 Dindigul
Polygonum minus Huds. = Persicaria minor (Huds.) Opiz Herb Western Ghats, Evergreen Forests, Marsh Localities Flora of Tamil Nadu, VOL. II, 1987; Gage 1903 Coimbatore, Dindigul, Nilgiri, Tirunelveli
Polygonum orientale L. = Persicaria orientalis (L.) Spach Herb Western Ghats & Eastern Ghats, Moist Deciduous Forests, Marsh Localities Flora of Tamil Nadu, VOL. II, 1987 Dindigul, Namakkal, Theni, Tiruvanna malai, Vellore, Viluppuram
Polygonum plebeium R. Br. Herb Plains to High Altitude, Dry Localities Flora of Tamil Nadu, VOL. II, 1987 All districts
Polygonum sphaerocephalum Wall.ex Meisner is a synonym of Polygonum microcephalum var. sphaerocephalum (Wall. ex Meisn.) H. Hara Creep ing Herb Western Ghats, Evergreen Forests Flora of Tamil Nadu, VOL. II, 1987 Nilgiri, Theni
Polygonum strigosum R. Br. is a synonym of Persicaria strigosa (R.Br.) Nakai Herb Western Ghats, Evergreen Forests, Marsh Localities Flora of Tamil Nadu, VOL. II, 1987 Dindigul, Nilgiri, Theni

.
Polygonum flaccidum ROXB. (? Polygonum flaccidum Meisn.is a synonym of Polygonum pubescens Blume)
Polygonum posumbi HAM. = Persicaria posumbu (Buch.-Ham. ex D. Don) H. Gross

.

Species with description & pictures in Flowers of India as on 8.1.14:

Botanical name Synonyms Family Common name
Persicaria barbata Polygonum barbatum Polygonaceae Bearded Knotweed
Persicaria capitata Polygonum capitatum Polygonaceae Pink Knotweed
Persicaria chinensis Polygonum chinense, Polygonum auriculata Polygonaceae Chinese Knotweed
Persicaria glabra Polygonum glabrum Polygonaceae Denseflower Knotweed
Persicaria hydropiper Polygonum hydropiper Polygonaceae Water Pepper
Persicaria lapathifolia Polygonum lapathifolium Polygonaceae Pale Knotweed
Persicaria maculosa Polygonum persicaria Polygonaceae Redshank
Persicaria minor Polygonum minus Polygonaceae Small Water-Pepper
Persicaria nepalensis Polygonum nepalense Polygonaceae Nepal Knotweed
Persicaria orientalis Polygonum orientale Polygonaceae Kiss Me Over The Garden Gate
Persicaria orientalis Polygonum orientale Polygonaceae Oriental Pepper
Persicaria serrulata is a synonym of Persicaria decipiens (R.Br.) K.L.Wilson Polygonum salicifolium, Persicaria salicifolia Assenov Polygonaceae Willowleaf Knotweed

Polygonum pubescens = Persicaria pubescens (Blume) H. Hara Persicaria pubescens, Polygonum flaccidum, Polygonum roettleri Polygonaceae Drooping Knotweed

.

Persicaria polystachya = Rubrivena polystachya (Wall. ex Meisn.) M. Král
Polygonum capitatum = Persicaria capitata (Buch.-Ham. ex D. Don) H. Gross
Polygonum posumbu = Persicaria posumbu (Buch.-Ham. ex D. Don) H. Gross

.  

Persicaria :  1 post by 1 author.

I have updated eFI (efloraofindia) page on Persicaria

Attempts have been made to incorporate most of the species available in India & nearby areas with details & keys directly or through links as far as possible. It’s quite possible that there may be some discrepancy in the accepted names & synonyms taken from other databases/ books.

Species discussed so far in efloraofindia are given at the bottom of the page in the form of links against Subpages. On clicking them one can see all the details.

Any comments are welcome.


.

Flora of Davanagere District, Karnataka, India By B. K. Manjunatha, V. Krishna, T. Pullaiah (2004)- Details with keys

.
.
Forest Plants of Eastern India By Amal Bhusan Chaudhuri (1993)-
Polygonum islandicum (L.) Hook.f.is a synonym of Koenigia islandica L.
Polygonum perpusillum Hook. f.is a synonym of Bistorta perpusilla (Hook.f.) Greene
Polygonum sinuatum Royle ex Bab.is a synonym of Persicaria sinuata (Royle ex Bab.) Rajbh. & R.Joshi
Polygonum sphaerostachyum Meisn.is a synonym of Polygonum macrophyllum D. Don

.
Gardening in India By George Marshall Woodrow, G Marshall (1986)- Details-

.

I have updated eFI (efloraofindia) page on Aconogonon, Bistorta, Fagopyrum, Fallopia, Koenigia, Persicaria, Polygonum & Rubrivena

Attempts have been made to incorporate most of the species available in India & nearby areas with details & keys directly or through links as far as possible. It’s quite possible that there may be some discrepancy in the accepted names & synonyms taken from other links.

Species discussed so far in efloraofindia are given at the bottom of the page in the form of links against Subpages. On clicking them one can see all the details.

If someone can provide complete list of Indian species with source references it will be wonderful.

Any comments/ corrections are welcome.


In my opinion most of the above genera should be treated under Polygonum sensu lato. I am working on Indian Polygonaceae but it needs thorough field work. The taxonomic complexes are to be solved with the help of SEM/ Molecular studies. I have listed all Indian species but it is not yet published.


Thanks a lot, … I have taken GRIN as the basis as it relied on the latest litrature published in 2011 or 2012. Other efloras & The Plant List etc. has also been considered where ever a taxa is not available in GRIN.
As & when new findings are published it can be updated again.

.


Persicaria page with comparative images:
Pl. go through Persicaria‎‎ (Polygonaceae) page with comparative images of species in efloraofindia. On clicking the link of species, one can check the complete details. Genus pages generally give details of most of the species found in India.
I request you to pl. go through & point out mistakes, if any. I hope this will aid in identification in future. If anybody can send images of other species of this genus (for incorporation in the website), if any, or can identify unidentified images, it will be really nice.
Most of the credit goes to …, for identifying most of the Persicaria and Polygonaceae posts.


 

Leave a Reply

Your email address will not be published.