Appearance ²

Grows almost completely underwater. It has long, ripply, olive-green to reddish-brown leaves with fine-toothed edges. It has tiny, four-petalled flowers on flower stalks.

Introduction ²

Unknown

Similar Native Species ²

Richardson’s Pondweed (Potamogeton richardsonii), which has wider leaves with sharply-pointed tips

Impacts on Ecosystems ²

Grows densely and outcompetes native species. Clogs waterways.

Citations ²

http://www.invasivespeciesinfo.gov/aquatics/pondweed.shtml
http://www.discoverlife.org/mp/20q?search=Potamogeton+crispus

Sources and Credits

1. (c) Fabelfroh, some rights reserved (CC BY-SA), http://commons.wikimedia.org/wiki/File:Potamogeton_crispus.jpeg
2. (c) gburg2016, some rights reserved (CC BY-SA)

More Info

• iNat taxon page
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• IPNI (with links to POWO, WFO, and BHL)
• Jepson eFlora
• Maryland Biodiversity Project
• NatureServe Explorer 2.0
• NBN Atlas
• New Zealand Plant Conservation Network
• OregonFlora.org
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• USDA PLANTS database
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• World Flora Online
• 日本のレッドデータ検索システム
• 植物和名−学名インデックス YList

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