Persicaria maculosa Gray, Nat. Arr. Brit. Pl. 2: 269 1821. (syn: Persicaria fusiformis (Greene) Greene; Persicaria maculosa var. argentea Gray; Persicaria mitis Garsault [Invalid]; Persicaria mitis Delarbre; Persicaria persicaria (L.) Small; Persicaria salicifolia Gray; Polygonum biforme Wahlenb.; Polygonum fusiforme Greene; Polygonum persicaria L.; Polygonum persicaria var. ruderale (Salisb.) Meisn.; Polygonum puritanorum Fernald; Polygonum ruderale Salisb.);
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;
Lady’s-thumb, Redshank, Spotted lady’s-thumb , Smart weed;
Persicaria maculosa (syn. Polygonum persicaria) is an annual plant in the knotweed family, Polygonaceae. Common names include lady’s thumb, spotted lady’s thumb, Jesusplant, and redshank.
Persicaria maculata ABAUG2017/40 : 4 posts by 2 authors. Attachments (10)
These plants are shorter with more upright, denser, flower-spikes. The leaves have black markings. I think this is Persicaria maculata. Please advise.
Mcleodganj and above, Dharamshala, HP
1700m and above.
26 August 2017 and 03 August 2016 (fruit)
I think you are talking of Persicaria maculata S.F.Gray synonym for Persicaria lapathifolia subsp. lapathifolia (also available in efi) as per Catalogue of Life & not Persicaria maculata (Raf.) A. Löve & D. Löve (not available in efi).
I also think matches with images in efi at Persicaria lapathifolia
Ochrea looks different from Flora of North America illustration of Persicaria lapathifolia (L.) S. F. Gray.
You may be right about this being Persicaria maculosa Gray as per
Persicaria maculosa from Brampton Canada-22112022-1: 5 very high res. images.