Persicaria strigosa(R.Br.) H.Gross

WFO wfo-0000483747 Accepted WFO 2026-06 8 photographs CC0 / CC BY / CC BY-SA

Plate 1 figs. a–h · 8 separate observations

Persicaria strigosa, photographed by Thomas Mesaglio
fig. a Thomas Mesaglio, CC BY 4.0 / 2022-04-29 / obs. 193562579

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Native range 37 botanical countries

Regions where Persicaria strigosa is native: Angola, Botswana, Burundi, Cape Provinces, DR Congo, Eswatini, Ethiopia, Free State, Kenya, KwaZulu-Natal, Madagascar, Malawi, Namibia, Northern Provinces, Rwanda, Tanzania, Uganda, Zambia, Zimbabwe, China South-Central, China Southeast, Assam, Bangladesh, East Himalaya, India, Jawa, Malaya, Myanmar, Nepal, New Guinea, Sri Lanka, Thailand, Vietnam, West Himalaya, New South Wales, Northern Territory, Queensland AngolaBotswanaBurundiCape ProvincesDR CongoEswatiniEthiopiaFree StateKenyaKwaZulu-NatalMadagascarMalawiNamibiaNorthern ProvincesRwandaTanzaniaUgandaZambiaZimbabweChina South-CentralChina SoutheastAssamBangladeshEast HimalayaIndiaJawaMalayaMyanmarNepalNew GuineaSri LankaThailandVietnamWest HimalayaNew South WalesNorthern TerritoryQueensland
Native distribution of Persicaria strigosa, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows.
RegionTDWG codeContinent
Angola ANG AFRICA
Botswana BOT
Burundi BUR
Cape Provinces CPP
DR Congo ZAI
Eswatini SWZ
Ethiopia ETH
Free State OFS
Kenya KEN
KwaZulu-Natal NAT
Madagascar MDG
Malawi MLW
Namibia NAM
Northern Provinces TVL
Rwanda RWA
Tanzania TAN
Uganda UGA
Zambia ZAM
Zimbabwe ZIM
Assam ASS ASIA-TROPICAL
Bangladesh BAN
East Himalaya EHM
India IND
Jawa JAW
Malaya MLY
Myanmar MYA
Nepal NEP
New Guinea NWG
Sri Lanka SRL
Thailand THA
Vietnam VIE
West Himalaya WHM
New South Wales NSW AUSTRALASIA
Northern Territory NTA
Queensland QLD
China South-Central CHC ASIA-TEMPERATE
China Southeast CHS

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Flowering 61 in flower of 78 examined

Proportion of examined Persicaria strigosa in flower, by month
Month In flower Examined Share 95% interval
Jan 10 12 83% 55% to 95%
Feb 8 8 100% 68% to 100%
Mar 5 5 100% 57% to 100%
Apr 7 7 100% 65% to 100%
May 2 4 too few examined
Jun 7 11 64% 35% to 85%
Jul 2 3 too few examined
Aug 2 4 too few examined
Sep 0 3 too few examined
Oct 3 5 60% 23% to 88%
Nov 3 4 too few examined
Dec 12 12 100% 76% to 100%

Peak flowering in Feb. Each bar is the share of Persicaria strigosa observations in which someone actually recorded the reproductive state and found the plant in flower, not the raw number of flowering records. That distinction matters: people observe plants far more in spring than in winter, so a bare count of flowering records partly measures when people go outside. Dividing by the number examined removes that. 61 of 78 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 5 months have fewer than 5 examined observations, so no proportion is drawn for them. This is still a global aggregate and not a forecast for your garden: the same species flowers on different dates in different hemispheres. Where a species has fewer than 30 flowering records we do not draw this chart at all. Computed from 10.15468/dl.cgje2x.

Also published as 4 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Polygonum bodinieri H.Lév. & Vaniot
  • Polygonum strigosum R.Br.
  • Tracaulon strigosum Greene
  • Truellum strigosum (R.Br.) Soják

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
  3. Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

We publish what we can source and we say so when we cannot. This page has no care advice and no toxicity claim, because we do not yet have those from a source we can cite.