''Cabomba haynesii'' is a species of aquatic plant in the family Cabombaceae native to the Caribbean, Central America, and South America.

Description

Vegetative characteristics

''Cabomba haynesii'' is an aquatic, rhizomatous, long-stemmed herb with both submerged and floating leaves. The pilose, green to red stems with red papillae at the nodes have two vascular bundles. The dissected, oppositely arranged, petiolate, submerged leavesWiersema, J. H. (1989)
A new species of ''Cabomba'' (Cabombaceae) from tropical America.
Annals of the Missouri Botanical Garden, 76(4), 1167-1168. are 0.5-0.9 cm long, and 1.4-1.8 cm wide. The glabrous petiole is 0.5-0.8 mm long.Matias, L. Q., & Nascimento, H. P. D. (2021)
Flora of Ceará, Brazil: Cabombaceae.
Rodriguésia, 72, e00592019.

Generative characteristics

The pinkish-purple to white,WFO (2024): ''Cabomba haynesii'' Wiersema. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000705668. Accessed on: 21 Nov 2024 1–1.5 cm wide flowers with 1.5-1.8 cm long pedicels float on the water surface, or extend beyond it. The base of the petals is auriculate. The flowers have 3 (5) stamens and (1–) 2 (–3) carpels. The oblong to ovoid seeds are 1.8-2.5 mm long, and 1-2 mm wide.Pellegrini, M.O.O. Cabombaceae in Flora e Funga do Brasil. Jardim Botânico do Rio de Janeiro. Available at:. consulta.publica.uc.citacao.acesso.em04 Oct. 2024

Taxonomy

It was first described as ''Cabomba piauhiensis'' f. ''albida'' Fassett by

Norman Carter Fassett Norman Carter Fassett (March 27, 1900 – September 14, 1954) was an American botanist and professor, known as an expert on the aquatic flora of Wisconsin. Career Fassett was born in Ware, Massachusetts. He studied at Harvard University, eventua ...

in 1953. Later, it was described as the new species ''Cabomba haynesii'' Wiersema by

John Harry Wiersema John is a common English name and surname: * John (given name) * John (surname) John may also refer to: New Testament Works * Gospel of John, a title often shortened to John * First Epistle of John, often shortened to 1 John * Second Ep ...

in 1989.Fassett, N. C. (1953). A Monograph of ''Cabomba''. Castanea, 18(4), 116–128. http://www.jstor.org/stable/4031558 The type specimen was collected by J. Steiner, C. von Chong, and H. Kennedy''Cabomba haynesii'' , International Plant Names Index. (n.d.). Retrieved October 4, 2024, from https://www.ipni.org/n/938414-1 in the

Chagres River The Chagres River (), in central Panama, is the largest river in the Panama Canal's drainage basin. The river is dammed twice, and the resulting reservoirs—Gatun Lake and Lake Alajuela—form an integral part of the canal and its water ...

in Gamboa, Panama on the 8th of February 1973.

Hybridisation

It has been speculated that ''Cabomba haynesii'' may be a result of a hybridisation event involving '' Cabomba palaeformis'' and '' Cabomba furcata''.Wilson, C. E., Darbyshire, S. J., & Jones, R. (2007)
The biology of invasive alien plants in Canada. 7. ''Cabomba caroliniana'' A. Gray.
Canadian Journal of Plant Science, 87(3), 615-638.

Etymology

The specific epithet ''haynesii'' honours Robert R. Haynes.

Ecology

Habitat

In Brazil, it is found in seasonally flooded lagoons,Lima, C. T. D., & Gil, A. D. S. B. (2016)
Flora das cangas da Serra dos Carajás, Pará, Brasil: Cabombaceae.
Rodriguésia, 67, 1273-1276. or in temporary or permanent standing bodies of water. It can occur in slightly brackish water.

Conservattion

The

NatureServe conservation status The NatureServe conservation status system, maintained and presented by NatureServe in cooperation with the Natural Heritage Network, was developed in the United States in the 1980s by The Nature Conservancy (TNC) as a means for ranking or categor ...

is G5 Secure.

References

{{Taxonbar, from1=Q15480959, from2=Q112672845 haynesii Plants described in 1989 Freshwater plants Brackish water plants