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Scientific Name: Persicaria glabra

Synonym: Polygonum glabrum  (Currently unaccepted)

English Name: Denseflower knotweed
Local/Bangla Name: Biskatali (বিষ কাঁটালি) , Lal-kukri (লাল কুকরি), Bihogni (বিহোগনি)
Aquatic weed : Persicaria glabra

Photo: Shiwalee Samant (iNaturalist)

Classification:
Kingdom: Plantae
Phylum: Tracheophyta
Class: Magnoliopsida
Order: Caryophyllales
Family: Polygonaceae
Description:
This is a smooth perennial herb with an upright or ascending stem, typically reddish at the base. Its leaves are simple, arranged alternately along the stem, with lanceolate to elliptic-lanceolate blades, pointed tips, and narrowed bases that connect to the petioles. The inflorescence consists of branched racemes at the tips of the plant, bearing pink flowers without glands. The seeds are shiny black and biconvex.
Habitat & Distribution in Bangladesh:
It is commonly found along riverbanks, beels, jheels, ditches, and similar inland water bodies throughout Bangladesh.
Environment:
Freshwater.
Comments:
It is an emergent aquatic weed
DNA Barcodes from Bangladesh
GenBank Accession Number:
Other DNA Barcodes & Nucleutide Sequences
Other Information