學名：Egeria densa；別名 Brazilian Waterweed
- The large-flowered waterweed are produced in areas with higher temperatures in South America.
Brazil, Argentina, and Uruguay all have native large-flowered waterweed.
Large-flowered waterweed is a kind of aquatic plant, mainly distributed by the lake.
The roots of large-flowered waterweed will be tightly inserted into the soil, and its stems will not be exposed to the surface of the water, so it is a submerged aquatic plant.
Large-flowered waterweed can grow in waters within 4 meters of water depth.
- The leaves of large-flowered waterweed are about 1 to 4 cm long and 2 to 5 mm wide.
Large-flowered waterweed is a dioecious plant, and its female and male flowers will not appear in the same plant.
Large-flowered waterweed are common aquatic plants.
In some places, large-flowered waterweed are regarded as exotic plants and their sales are prohibited.
Large-flowered waterweed is suitable for growing in a nutritious and light environment.
Large-flowered waterweed grow well in colder aquariums.