Hydrophytic vegetation is a term used for plants that have adapted to survive oxygen-challenged aquatic environments.
You’ll often find these plants in wetlands, and they can tell you a lot about their surrounding environment.
Let’s look at what hydrophytic vegetation is and what you should know about these plants if you own land with wetlands.
1. What is hydrophytic vegetation?
Hydrophytic means “water-loving,” and thus hydrophytic vegetation refers to “water-loving” plants that have adapted to growing in wetlands.
These plants can thrive in low-oxygen (anaerobic) conditions associated with prolonged saturation or flooding.
They have evolved alternative methods of collecting oxygen such as…
2. What are the indicator categories of hydrophytic plants?
As plant species vary in their tolerance of wet conditions, the U.S. Fish and Wildlife Service created indicator categories of plants in the National List of Plant Species that Occur in Wetlands.
This list reflects the range of estimated probabilities of a species occurring in wetland versus non-wetland across the entire distribution of the species.
The indicator categories include:
Note: If a species does not occur in wetlands in any region, it is not on the National List.
3. Why is hydrophytic vegetation important?
Hydrophytic vegetation provides food and critical habitat for organisms that live in or near water resources.
This includes algae, macroinvertebrates, amphibians, fish, birds, etc.
Having hydrophytic vegetation present can improve water quality through the uptake of nutrients, metals, and other contaminants.
Furthermore, vegetation is also a crucial factor in protecting shorelines from erosion and mitigating the impact of floods.
4. What can hydrophytic vegetation tell us about the condition of water?
Humans can cause changes to the natural hydrologic regime and plant communities.
Certain plant species react differently to these stressors, and as environmental conditions vary, the plant community will respond to meet these stressors (hydrologic changes, nutrient enrichment, excess sediment and turbidity, metals, and other pollutants).
Human disturbances can cause the habitable zones for wetland vegetation to shift, and species tolerant of human disturbance might invade while others may die back due to drainage or flooding.
5. What adaptations allow hydrophytic vegetation to survive in water?
Hydrophytic plants have adapted over the years to survive in oxygen-challenged aquatic environments.
Here are the adaptations that allow this to happen.
6. What are common hydrophytic plants?
There’s a wide variety of hydrophytic vegetation and their growth depends on several factors, including habitat, climate, water depth, salt content, and soil chemistry.
Here are various common hydrophytic plants according to the habitats that they grow in.
Salt marshes or sandy beaches:
Ponds, lakes, marshes, swamps, or other areas flooded by at least 12 inches of water:
There are also carnivorous plants that are hydrophytic, including sundew and northern pitcher plants.
Some orchids grow in hydrophytic environments, including white-fringed orchids, purple-fringed orchids, greenwood orchids, and rose pogonia.
7. What are common habitats for hydrophytic vegetation?
Hydrophytic vegetation grows either in water or in consistently wet soil conditions.
As such, habitats include fresh or saltwater marshes, savannahs, bays, swamps, ponds, lakes, bogs, fens, quiet streams, tidal flats, or estuaries.
8. What characteristics do wetlands share?
Wetlands are essential for our ecological, economical, and social health.
However, not everyone understands exactly what a wetland looks like.
When you see the word, you may think of a swamp, marsh, or bog.
Or perhaps a peaceful pond with cattails, water lilies, and frogs.
However, wetlands aren’t always just a wet area to be left alone.
Some wetlands are actively farmed, mowed for hay, or maintained as lawns.
If you currently have land that includes wetlands, you can be sure of their classifications by checking for the following characteristics.
9. What are the benefits and purposes of a wetland?
Wetlands provide habitats for fish, wildlife, and plants.
They recharge groundwater and reduce flooding while also providing clean drinking water, offering food and fiber, and supporting cultural and recreational activities.
These are essential needs for our communities, and as such, federal, state, and local regulations seek to protect wetlands.
10. Where are wetlands found?
Wetlands are found worldwide within nearly every terrestrial biome, including deserts and the alpine tundra.
However, in the United States, most wetland areas are located in the Southeast, the Mississippi River system, and the northern states of Minnesota and Wisconsin.
11. How can you help save wetlands?
Wetlands have been reported as one of the most threatened ecosystems in the world today.
People often see wetlands as “wasteland.”
Because they’re not as productive as they could be, they’re filled in and destroyed rather than being used to their fullest potential or protected as they should be.
Unfortunately, because wetlands are essential to our ecological health, this endangers human, plant, and animal life at an alarming rate.
If you’re wondering how you can help save wetlands, follow the steps below.
Did you know that Earthwatch.org helps to pair researchers with volunteers in all habitats?
Visit their website and search for wetlands.
You can see the trips they have planned, and you can volunteer your time to help out!
The Common Sense Environmental Fund provides money to research organizations and conservation projects.
If you don’t have time to volunteer, giving money is a great way to help.
Common Sense will select the most qualified conservation initiatives to fund with the cash you provide.
Looking for a local group to join in your community? Contact the Izaak Walton League at 1-800-BUG-IWLA.
This is a general piece of advice that will help all facets of the environment (not just wetlands).
Everything you can do to reduce your waste and recycle what you use daily will prevent trash from entering our waterways, including wetlands.
Recycling is a daily activity that you can take part in, so do your part.
If you own land with or near wetlands, it’s important to take the proper steps to protect them.
Many times, this includes doing a wetland delineation if you’re planning a development project.
Wetland delineation determines the precise boundaries on the ground through field surveys.
This is an important step for land developers and engineers and helps to eliminate any potential roadblocks that may delay or prevent a project from happening.
12. What does a wetland delineation find?
A wetland delineation results in three findings:
This will help with agency verification.
13. What’s the process for conducting a wetland delineation?
A delineator must prepare for the delineation by reviewing all the resources available.
These include aerial photos, National Wetlands Inventory, soil survey by Natural Resource Conversation Service, topography, and relative local or state-level maps that could exist for wetlands.
If you’re working on a smaller project, a map may be all that’s needed.
For larger projects, however, it is best to determine in advance what you need the delineation to cover.
The delineator will then head out into the field to survey the site.
They will generally look at the hydrophytic vegetation around your property, locate the topographic break, and complete a soil sample.
The wetland delineation report should consist of the following information.
- Introduction which details the site description and purpose for the delineation
- Wetland delineation descriptions and methods which include the definition, methodology, hydrophytic vegetation, hydric/wetland soils, hydrology
- Results – Description of the wetland identified and regulatory considerations
- Bibliography
- Tables, figures, and appendices
Final thoughts
Wetlands, and the hydrophytic vegetation that are present on them, are essential for our ecosystems, and as such, we must work to protect them.
Be sure to pay attention to all federal, state, and local guidelines as a landowner.
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Disclaimer: we are not lawyers, accountants or financial advisors and the information in this article is for informational purposes only. This article is based on our own research and experience and we do our best to keep it accurate and up-to-date, but it may contain errors. Please be sure to consult a legal or financial professional before making any investment decisions.