[Wikipedia] Origin & 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] (link added by Mary Ann Machi)
/app/up/mg/317/th/mg95164-2.jpg:!/app/up/mg/712/th/mg213627-0.jpg:!/app/up/entry/38/th/11427.jpg:!/app/up/mg/419/th/mg125867-1.jpg:!/app/up/mg/419/th/mg125867-0.jpg:!/app/up/mg/2/th/mg750-0.jpg:!/app/up/cbo/11/th/3444.jpg:!/app/up/mg/546/th/mg163911-1.jpg:!/app/up/mg/419/th/mg125867-2.jpg:!/app/up/mg/317/th/mg95164-1.jpg:!/app/up/mg/317/th/mg95164-0.jpg:!/app/up/entry/604/th/181439.jpg:!/app/up/entry/38/th/11426.jpg:!/app/up/entry/38/th/11425.jpg:!/app/up/entry/202/th/60803.jpg:!/app/up/cbo/57/th/17239.jpg:!/app/up/mg/712/th/mg213627-1.jpg:!
2019 R.A. Chasey:!2023 R.A. Chasey:!2017 Michael Mitchell:!2021 R.A. Chasey:!2021 R.A. Chasey:!2013 John Malpas:!2014 Ron Vanderhoff:!2022 Ellen Uhler:!2021 R.A. Chasey:!2019 R.A. Chasey:!2019 R.A. Chasey:!2023 R.A. Chasey:!2017 Michael Mitchell:!2017 Michael Mitchell:!2020 Ron Vanderhoff:!2013 John Malpas:!2023 R.A. Chasey:!
mg95164:!mg213627:!po37998:!mg125867:!mg125867:!mg750:!oe7379:!mg163911:!mg125867:!mg95164:!mg95164:!mu36452:!po37998:!po37998:!mu7344:!mg750:!mg213627:!
Suggested Citation
Calflora:
Information on California plants for education, research and conservation,
with data contributed by
public and private institutions and individuals.
[web application]. 2025. Berkeley, California:The Calflora Database
[a non-profit organization].Available:
https://www.calflora.org/(Accessed: 03/22/2025).
