Myoporeae

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Monocots
Cladus: Commelinids
Ordo: Commelinaless

Familia: Pontederiaceae
Genus: Pontederia
Species: Pontederia vaginalis
Name

Pontederia vaginalis Burm.f., Fl. Indica: 80. (1768)
Synonyms

Homotypic
Monochoria vaginalis (Burm.f.) C.Presl, Reliq. Haenk. 1: 128. (1827)
Gomphima vaginalis (Burm.f.) Raf., Fl. Tellur. 2: 10. (1837)
Heterotypic
Pontederia cordata Lour., Fl. Cochinch.: 245. (1790) 99nom. illeg.]]
Pontederia pauciflora Blume, Enum. Pl. Javae 1: 32. (1827)
Pontederia loureiroana Schult. & Schult.f. in J.J.Roemer & J.A.Schultes, Syst. Veg. 7: 1145. (1830)
Pontederia linearis Hassk., Flora 25(2 Beibl.): 4. (1842)
Monochoria loureiroi Kunth, Enum. Pl. 4: 135. (1843) nom. superfl.
Monochoria pauciflora (Blume) Kunth, Enum. Pl. 4: 135. (1843)
Pontederia vaginata Royle, Ill. Bot. Himal. Mts.: 116. (1834), orth. var.

References

Burman, N.L. 1768. Flora Indica: cui accedit series zoophytorum indicorum, nec non Prodromus Florae Capensis 80.
Govaerts, R. et al. 2021. Pontederia vaginalis in World Checklist of Selected Plant Families. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the internet. Accessed: 2021 July 14. Reference page.
International Plant Names Index. 2021. Pontederia vaginalis. Published online. Accessed: July 14 2021.
Pellegrini, M.O., Horn, C.N. & Almeida, R.F. 2018. Total evidence phylogeny of Pontederiaceae (Commelinales) sheds light on the necessity of its recircumscription and synopsis of Pontederia L. PhytoKeys 108: 25-83. DOI: 10.3897/phytokeys.108.27652 Open access Reference page.

Pontederia vaginalis is a species of flowering plant in the water hyacinth family known by several common names, including heartshape false pickerelweed and oval-leafed pondweed.

It is native to much of Asia and across many of the Pacific Islands, and it is known in other areas as an introduced species. It is often an invasive noxious weed, and is listed on the United States Federal Noxious Weed List.[1] An aquatic plant, it is invasive in rice paddies and other water bodies. This is an annual or perennial herb growing in water from a small rhizome. It is quite variable in morphology. The shiny green leaves are up to about 12 centimeters long and 10 wide and are borne on rigid, hollow petioles. The inflorescence bears 3 to 25 flowers which open underwater and all around the same time. Each has six purple-blue tepals just over a centimeter long. The fruit is a capsule about a centimeter long which contains many tiny winged seeds.
References

"USDA Plants Database".