Sagittaria guayanensis subsp. lappula (D.Don) Bogin, Mem. New York Bot. Gard. 9: 192 1955. (Syn: Alisma cristatum Wall. [Invalid]; Alisma hamiltonianum Wall. [Invalid]; Alisma lappula Buch.-Ham. ex Kunth [Invalid]; Lophiocarpus cordifolius Miq.; Lophiocarpus lappula (D.Don) Miq.; Lophotocarpus formosanus Hayata; Lophotocarpus guayanensis var. lappula (D.Don) Buchenau; Lophotocarpus guayanensis var. madagascariensis (Buchenau) Buchenau; Sagittaria blumei Kunth; Sagittaria cordifolia Roxb. [Illegitimate]; Sagittaria lappula D.Don; Sagittaria obtusissima Hassk.; Sagittaria pusilla Blume [Illegitimate]; Sagittaria triflora Noronha [Invalid]);
This species has been recorded from numerous countries across tropical Africa, Southeast Asia, Central and South America. It is a rooted aquatic plant found in ponds. This species is commonly grows in shallow water of drying ponds and margins of pools. The petals of flowers are analgesic in nature and its extracts are used externally in ear ache. Although there are fairly old records, many uses have been reported in Africa such as medicinal for treating nutritional deficiencies, tubers used as food for humans and animals, and also used in agriculture for composting (Burkill 1985).
11102011-BS-1 Aquatic herb for id from Pujam Karnal: Wild Aquatic herb for id from Pujam Karnal
Leaves floating flowers was about 3-4.5 cm white I think i found the correct id for this plant Sagittaria guayanensis Kunth pls see http://www.theplantlist.org/tpl/record/kew-287263 http://www.westafricanplants.senckenberg.de/root/index.php?page_id=14... http://plantes-rizieres-guyane.cirad.fr/monocotyledones/alismataceae/... http://www.westafricanplants.senckenberg.de/images/pictures/Sagittari... pls validate This plant is not on FOI Yes .... It was a tough competition but your photograph number 7, 10 and 13 seem to be clinching the issue. Otherwise leaf size and shape in two is similar, most flowers of Sagittaria are bisexual (clinch the issue) although some male flowers in later flowers were creating doubt, with both having up to 10 stamens, and male flowers of Hydrocharis also in groups of 2-3 like S. guayanensis. Flowers, however, are larger in Hydrocharis, 4 cm across as compared to 2 cm in S. guayanensis. You may have checked on this. Please make sure all photographs belong to same plant. Flower diameter should be 1.5-2 cm in Sagittaria guayanensis, but 4 cm in Hydrocharis. Plus Sagittaria has free carpels with numerous achenes, Hydrocharis united carpels (single ovary) with usually six bifid stigmas. But then acutish basal lobes and deep go with Sagittaria, Hydrocharis has shallow sinus with distinctly rounded basal lobes. Sir, Flower size was about 2-2.5 cm only. These were two different plant i shot there but of same species. This plant also commonly grows in Rice fields where flower size does not exceed 1.5 cm. And yes i remember the fruit free carpels. Adding 1 more pic of this plant thanks Sir for the so much research for this plant
Hooghly today - Aquatic - Sagittaria guayanensis H. B. K. [maybe ssp. lappula (D.Don) Bogin]: Attachments (9). 3 posts by 2 authors. I am grateful to ... and ... for the wonderful discussion in https://groups.google.com/forum/#!topic/indiantreepix/Kzq9SZkFTTo Awesome set of Pics ... Thank you very much Sir, i too was about to id it as Hydrocharis! References:
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# Species- Seed plants (families) > A---L (families & genera) > A > Alismataceae > Sagittaria >
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