Oxygonum sinuatum (Introduced)

Oxygonum sinuatum (Hochst. & Steud ex Meisn.) Dammer, Nat. Pflanzenfam. 3(1a): 30 1892. (Syn: Ceratogonon cordofanum Meisn.; Ceratogonon sinuatum Hochst. & Steud ex Meisn.; Ceratogonum cordofanum Meisn.; Ceratogonum sinuatum Hochst. & Steud. ex Meisn.; Oxygonum atriplicifolium var. sinuatum (Hochst. & Steud ex Meisn.) Baker; Oxygonum elongatum Dammer; Oxygonum somalense var. pterocarpum Chiov.);
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Tropical & S. Africa, Arabian Peninsula: Angola, Botswana, Burundi, Caprivi Strip, Chad, Djibouti, Eritrea, Ethiopia, Kenya, Malawi, Mozambique, Namibia, Niger, Rwanda, Saudi Arabia, Socotra, Somalia, Sudan, Tanzania, Uganda, Yemen, Zambia, Zaïre, Zimbabwe; Introduced into: Cape Verde, India, Mauritius as per POWO;
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Common name: Wavy-Leaf Oxygonum
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ARJUL01 Oxygonum sinuatum (Hochst. & Steud ex Meisn.) Dammer : 4 posts by 3 authors. Attachments (4).

Oxygonum sinuatum (Hochst. & Steud ex Meisn.) Dammer
An exotic from Africa that has been reported recently from Bangalore.
Belonging to family Polygonaceae.
Photographed in May from Lalbagh.

This plant is taking over one portion of Lalbagh Botanical Garden. Seems harmless but grows in large numbers. I suppose the three sided seeds get transported easily.

herb for ID x : 9 posts by 3 authors. Attachments (4).

found in bangalore
18th may

a species of polygonum….???…

Doesnt seem to be, …

Could this be a Verbenaceae member?

Is there SPINES ON THE FRUITS?…PLEASE CHECK…

Perhaps dissection of flower and fruit is needed to identify this plant. If that is the case, for now, this plant remains as a member of Polygonaceae.

this has been identified as Oxygonum sinuatum. A recenty introduced plant.