Log In. Developers and community planners increasingly use stormwater wetlands to reduce stormwater peak runoff and pollutant loads. Research continues to show that wetlands can remove many contaminants from stormwater. Designs continue to improve, increasing the potential for stormwater wetlands to provide efficient pollutant treatment.
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Learn which plants thrive in your Hardiness Zone with our new interactive map! The wetlands have some of the most interesting species of plants, from the world's smallest flowering plant to a plant that is capable of melting snow with its heat. Some species are also very useful to humans, like the cattail and the stinging nettle. Unfortunately, many of these helpful wetland plants are chocked out by alien plants that steal space and nutrients from the wetlands. Duckweed is a primary food source for ducks and is also the smallest plant that produces flowers. This plant also produces the smallest fruit in the world.
Click on images to enlarge. Kochia is an erect summer annual broadleaf plant that is difficult to differentiate from fivehook bassia, Bassia hyssopifolia. Kochia inhabits agricultural land and other disturbed areas. Although it can provide good livestock forage in modest amounts, its leaves contain saponins and small amounts of oxalates and nitrates, which can be toxic to livestock.
The Ballona Wetlands Ecological Reserve has the potential to be the most special wildlife area in Los Angeles — a rare remnant of the vast plain of marshes that once covered much of the LA basin. But the ecosystem is severely degraded, and getting worse. Much of the current Reserve is dried out and choked with non-native weeds. Add to Chrome.