A marsh is a wetland that is dominated by herbaceous rather than woody plant species.Marshes can often be found at the edges of lakes and streams, where they form a transition between the aquatic and terrestrial ecosystems.lthough considered a freshwater marsh, this form of marsh is affected by the ocean tides. However, without the stresses of salinity at work in its saltwater counterpart, the diversity of the plants and animals that live in and use freshwater tidal marshes is much higher than in salt marshes.
Guide to Lebanon weather in April. The average maximum daytime temperature in Lebanon in April is a comfortable 21Â°C (70Â°F). The average night-time temperature is usually a cool 12Â°C (54Â°F). There are usually 8 hours of bright sunshine each day, which represents 61% of the 13 hours of daylight.
Temperatures tend to be in the low-20s (around 72 Â°F) in mid-April, though lower is certainly possible. It tends to be considerably cooler at night than in the daytime. 1  April 15 Averages High: 20Â°C. 2  Low: 8Â°C.