Some links showing its distribution like this : https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:697039-1 https://www.gbif.org/species/2889038 https://www.catalogueoflife.org/data/taxon/4TPM2 https://indiaflora-ces.iisc.ac.in/herbsheet.php?id=10252&cat=13
Thank you. Saroj Kasaju On Sun, Mar 1, 2026 at 1:34 PM J.M. Garg <[email protected]> wrote: > It appears to be > https://efloraofindia.com/efi/rumex-dentatus/ as per images herein. > > Regarding subspecies Google AI gives these differences: > *Rumex dentatus* subsp. *nigricans* and *subsp. dentatus* are > infraspecific taxa of the highly variable *Rumex dentatus* (Toothed Dock) > species. They differ primarily in their geographical distribution and > subtle morphological features of the inner tepals (valves). *Subsp. > nigricans* is generally recognized as a distinct, often geographically > specific race, while *subsp. dentatus* (sometimes associated with *subsp. > callosissimus*) typically features distinct tubercles and specific valve > teeth lengths. > [image: Plants of the World Online | Kew Science]Plants of the World > Online | Kew Science +6 > Key differences include: > > - Taxonomic Status & Distribution: Both are recognized as distinct > subspecies within the *R. dentatus* complex. *Rumex nigricans* Hook.f. > is considered a synonym for *R. dentatus* subsp. *nigricans*. > - Morphological Distinctions: While both have 3-4 teeth on their valves*R. > dentatus* subsp. *dentatus* is characterized by inner tepals that are > 3–4 × 2 mm, acute, with tubercles covering nearly the entire lamina. The > teeth on *subsp. dentatus* are often shorter than the width of the > valve. > - Variation: *Rumex dentatus* is notoriously polymorphic, with seven > or more geographical races across Europe, Asia, and Africa, making precise > identification based solely on vegetative characteristics difficult without > analyzing mature fruits (valves). > [image: Plants of the World Online | Kew Science]Plants of the World > Online | Kew Science +5 > > Both are annual or biennial herbs preferring similar, often moist, > habitats. > > > On Mon, 23 Feb 2026 at 14:53, Saroj Kasaju <[email protected]> wrote: > >> *Rumex dentatus *subsp. *nigricans *(Hook.fil.) Rech.fil. ?? >> >> Thank you. >> >> Saroj Kasaju >> >> >> On Mon, Feb 23, 2026 at 2:10 PM Rahul Das <[email protected]> wrote: >> >>> Collected from Local wetland near kolkata >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "eFloraofIndia" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> To view this discussion, visit >>> https://groups.google.com/d/msgid/indiantreepix/CAKsXYQx%2B_Gq0v95ZO-d9hkT%2BpM2aFtEfKE88Mg75Z6GWOR1C5w%40mail.gmail.com >>> <https://groups.google.com/d/msgid/indiantreepix/CAKsXYQx%2B_Gq0v95ZO-d9hkT%2BpM2aFtEfKE88Mg75Z6GWOR1C5w%40mail.gmail.com?utm_medium=email&utm_source=footer> >>> . >>> >> > > -- > With regards, > J.M.Garg, > https://efloraofindia.com/ > -- You received this message because you are subscribed to the Google Groups "eFloraofIndia" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion, visit https://groups.google.com/d/msgid/indiantreepix/CAEf%3DytTYb5SaoXvYD784xe8_ibTXKXuhkQwg_upzn9QcmKgx5Q%40mail.gmail.com.
