Planta acuática invasora
many square miles of water hyacinth on this refuge
What I thought were large seeds were all over the beach. I emailed Tony Amos asking if he knew what they are. Here's his reply:
"These are not seeds at all but the bulbous, fleshy, buoyant stalks of the Water Hyacinth (Eichhornia crassipes). I wrote about this invasive plant in my last Jetty article. They wash ashore every year."
St Martin Parish, Louisiana, US
Palm Beach County, Florida
Sep 14, 2007
Water hyacinth is one of hte worst weeds in the world; here it covers about 20 m of the surface of the reservoir, along its shore adjacent to the Minjibir Agricultural Research Station