Bacopa aquatica

Bacopa aquatica Aubl., Hist. Pl. Guiane 1: 129 (1775) (syn: Bacopa aquatica var. multiflora J.A.SchmidtBacopa grandiflora Mart. ex Benth.Bacopa stellarioides (Cham.) Loefgr. & EdwallHerpestis stellarioides Cham.Herpestis stellarioides var. bahiensis Benth.Herpestis stellarioides var. cayennensis Benth.Herpestis stellarioides var. pumila Benth. ; Moniera aquatica (Aubl.) MacloskieMoniera stellarioides Kuntze); 
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Trinidad to S. Tropical America: Bolivia, Brazil North, Brazil Northeast, Brazil Southeast, Brazil West-Central, French Guiana, Guyana, Suriname, Trinidad-Tobago, Venezuela as per POWO;
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Plants for ID… : 7 posts by 4 authors. Attachments (3)

I saw this small plant (Herb) very long back near damp area in Minnie Bay, South
Andaman,
provided leaf, flower and fruits image.
Requested to please provide ID.


Seems to be Mecardonia acumiata


To me looks different from Mecardonia acuminata as per


Bacopa floribunda of Plantaginaceae.


Thanks, … But looks different as per Bacopa floribunda


Bacopa floribunda,


Looks different from images at Bacopa floribunda


No Sir till now I also couldn’t  identify this species.


Bacopa hamiltoniana (Benth.) Wettst. ?? or , Bacopa aquatica Aubl. ??
https://www.inaturalist.org/taxa/1279359-Bacopa-aquatica.


Bacopa aquatica Aubl.


 


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References:
POWO 
https://www.researchgate.net/publication/400214057_Bacopa_aquatica_Aubl_Plantaginaceae_a_new_record_for_Asia_from_Andaman_and_Nicobar_Islands_India:

Midigesi Anil Kumara, Apurba Kumar Dasb, Pankaj Arvind Dholea, Gautam Anuj Ekkaa, Chandrakasan Sivaperumanb and Lal Ji Singh- Journal of the Andaman Science Associaon Vol. 30 (2): 138-142 (2025) (Abstract: This report describes Bacopa aquatica Aubl. as first record to the Indian flora, based on collections from the Andaman and Nicobar Islands. Since its discovery, the species was previously known only from the moist tropical biomes of Trinidad to South America has significantly expanded its range eastward. A description, photo plate and distribution information are provided)
Updated on February 12, 2026

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