dcsimg

Description ( Inglês )

fornecido por Flora of Zimbabwe
Perennial semi-aquatic herb.
licença
cc-by-nc
direitos autorais
Mark Hyde, Bart Wursten and Petra Ballings
citação bibliográfica
Hyde, M.A., Wursten, B.T. and Ballings, P. (2002-2014). Hydrocotyle ranunculoides L. f. Flora of Zimbabwe website. Accessed 28 August 2014 at http://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=142950
autor
Mark Hyde
autor
Bart Wursten
autor
Petra Ballings
original
visite a fonte
site do parceiro
Flora of Zimbabwe

Frequency ( Inglês )

fornecido por Flora of Zimbabwe
Rare
licença
cc-by-nc
direitos autorais
Mark Hyde, Bart Wursten and Petra Ballings
citação bibliográfica
Hyde, M.A., Wursten, B.T. and Ballings, P. (2002-2014). Hydrocotyle ranunculoides L. f. Flora of Zimbabwe website. Accessed 28 August 2014 at http://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=142950
autor
Mark Hyde
autor
Bart Wursten
autor
Petra Ballings
original
visite a fonte
site do parceiro
Flora of Zimbabwe

Worldwide distribution ( Inglês )

fornecido por Flora of Zimbabwe
America
licença
cc-by-nc
direitos autorais
Mark Hyde, Bart Wursten and Petra Ballings
citação bibliográfica
Hyde, M.A., Wursten, B.T. and Ballings, P. (2002-2014). Hydrocotyle ranunculoides L. f. Flora of Zimbabwe website. Accessed 28 August 2014 at http://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=142950
autor
Mark Hyde
autor
Bart Wursten
autor
Petra Ballings
original
visite a fonte
site do parceiro
Flora of Zimbabwe

Comprehensive Description ( Inglês )

fornecido por North American Flora
Hydrocotyle ranunculoides L. f. Suppl. 177. 1781
Hydrocotyle americana Walt. Fl. Car. 113. 1788. Not H. americana L. 1753. Hydrocotyle nutans Cirillo, PI. Rar. Neap. 1: 20. 1788. Hydrocotyle cvmbalarifolia Muhl. Cat. 30. 1813. Hydrocotyle b'atrachioides DC. Prodr. 4: 667. 1830.
Hydrocotyle adoensis Hochst.; Hoppe & Fiirnrohr. Flora 24': Intell. 28. 1841. Hydrocotyle ranunculoides a genuina Urban in Mart. Fl. Bras. II 1 : 284. 1879. Hydrocotyle ranunculoides i natans Urban in Mart. Fl. Bras. II 1 : 284. 1879. Hydrocotyle ranunculoides var. lobata Urban in Mart. Fl. Bras. II 1 : 283. 1879. Hydrocotyle ranunculoides var. inciso-crenata Urban in Mart. Fl. Bras. II 1 : 284. 1879. Hydrocotyle ranunculoides /3 adoensis Urban in Mart. Fl. Bras. II 1 : 284. 1879. Hydrocotyle ranunculoides y brasiliensis Urban in Mart. Fl. Bras. II 1 : 284. 1879. Hydrocotyle ranunculodes [sic] f. minima Ktintze, Rev. Gen. 3 3 : 114. 1898.
Stems slender to somewhat fleshy, floating or creeping; leaves not peltate, roundishreniform with a sinus at the base, excluding the petioles 5-80 mm. long, 5-80 mm. broad, 5-6-lobed about to the middle, the lobes crenate or lobulate, glabrous; petioles mostly slender, 1-34.5 cm. long, glabrous; peduncles shorter than the leaves, axillary, 4-60 mm. long, glabrous; umbels simple, 5-10-flowered; pedicels 1-3 mm. long, spreading and ascending; stylopodium depressed; fruit suborbicular, 1-3 mm. long, 2-3 mm. broad, the dorsal surface rounded, the ribs obsolete; strengthening cells absent.
Type locality: Mexico, Mutis.
Distribution: Pennsylvania and Delaware to Florida, west to Arkansas, Texas, and Arizona; Washington, south along the coast to Panama; Cuba; also in South America. (Curtiss 5888, Elmer 4657.)
licença
cc-by-nc-sa-3.0
citação bibliográfica
Albert Charles Smith, Mildred Esther Mathias, Lincoln Constance, Harold William Rickett. 1944-1945. UMBELLALES and CORNALES. North American flora. vol 28B. New York Botanical Garden, New York, NY
original
visite a fonte
site do parceiro
North American Flora

Hydrocotyle ranunculoides ( Inglês )

fornecido por wikipedia EN

Floating pennywort infestation in the River Soar, Leicester
Collecting the floating pennywort with a mowing boat in Germany

Hydrocotyle ranunculoides, known commonly as floating pennywort, or floating marshpennywort, is an aquatic plant in the family Apiaceae. It is native to North and South America.

Origin and invasiveness

Water pennywort is an aquatic plant, native to the Americas. Due to its popularity as a pond plant, and subsequent escape into rivers, it has established as an invasive alien species in parts of Europe, Australia, Africa and Japan.[1][2][3] It was one of five aquatic plants which were banned from sale in the UK from April 2014, and was the first prohibition of its kind there.[4] On the other hand, it is in decline in parts of its range in the United States.[5]

In Europe, floating pennywort is included since 2016 in the list of Invasive Alien Species of Union concern (the Union list).[6] This implies that this species cannot be imported, cultivated, transported, commercialized, planted, or intentionally released into the environment in the whole of the European Union.[7]

Description

Water pennywort has stems that spread horizontally and can float on water.[8] Leaves grow on petioles up to 35 cm long, and are round to kidney-shaped, with 3–7 lobes and crenate to entire margins.[9] Flowers are small, pale greenish white to pale yellow, and come in umbels of 5–13.[8] Fruits are small achenes that can float, helping the seeds to disperse.[8]

The South American weevil Listronotus elongatus lays eggs on and eats the floating pennywort, and larvae also eat into the stems, reducing the pennywort's ability to grow. The weevil has been introduced for biocontrol of the floating pennywort into waterways in Britain, following extensive research to establish that the weevil is not a threat in itself.[10]

References

  1. ^ "Hydrocotyle ranunculoides (floating pennywort)". Invasive Species Compendium. Retrieved 3 February 2021.{{cite web}}: CS1 maint: url-status (link)
  2. ^ "Invasive non-native species - indicator two". Environment Agency. Archived from the original on 13 May 2010. Retrieved 28 August 2017.
  3. ^ "Aquatic invaders threat to biodiversity". The Ecologist. Retrieved 2017-08-28.
  4. ^ Kinver, Mark (2013-01-29). "UK bans sale of five invasive non-native aquatic plants". BBC News. Retrieved 2017-08-28.
  5. ^ "Plants Profile for Hydrocotyle ranunculoides (floating marshpennywort)". USDA, NRCS. 2021. The PLANTS Database. National Plant Data Team, Greensboro, NC 27401-4901 USA. Retrieved 2021-02-03.{{cite web}}: CS1 maint: url-status (link)
  6. ^ "List of Invasive Alien Species of Union concern - Environment - European Commission". ec.europa.eu. Retrieved 2021-07-27.
  7. ^ "REGULATION (EU) No 1143/2014 of the European parliament and of the council of 22 October 2014 on the prevention and management of the introduction and spread of invasive alien species".{{cite web}}: CS1 maint: url-status (link)
  8. ^ a b c John, Hilty. "Water Pennywort". Illinois Wildflowers. Retrieved 16 December 2012.{{cite web}}: CS1 maint: url-status (link)
  9. ^ "H. ranunculoides". Jepson Manual. University of California. Retrieved 16 December 2012.
  10. ^ Horton, Helena (17 May 2022). "South American weevils released in UK waterways to tackle invasive weed". The Guardian.
licença
cc-by-sa-3.0
direitos autorais
Wikipedia authors and editors
original
visite a fonte
site do parceiro
wikipedia EN

Hydrocotyle ranunculoides: Brief Summary ( Inglês )

fornecido por wikipedia EN
Floating pennywort infestation in the River Soar, Leicester Collecting the floating pennywort with a mowing boat in Germany

Hydrocotyle ranunculoides, known commonly as floating pennywort, or floating marshpennywort, is an aquatic plant in the family Apiaceae. It is native to North and South America.

licença
cc-by-sa-3.0
direitos autorais
Wikipedia authors and editors
original
visite a fonte
site do parceiro
wikipedia EN