Scientific Name: Trapa natans
Common Name(s): Water Chestnut
INVASIVE/THREAT to MAINE
Research Summary: Jack O.
|What were your observations on doing your research. Was it difficult? Were there a lot of resources? What was surprising? What do you think are some of the most important things that you discovered? |Identifying Characteristics
Taxonomy of Species
- Triangular and have toothed edges like a saw.
- Cord like and very long can grow up to 16 feet long.
- The rosetta is 2-4 cm or .75-1.5 inches.
- It's flower is .3 inches long.
- The chestnut has 4 spikes on it.
- The chestnut is 1.2 inches long.
Similar species include
|| Scientific Classification
|| What That Classification Means|
|| Eukaryotic cells many cells don't move make own food.|
|| Flowering plants.|
|| Dicotyledon has two leaves or cotyledons, in the embryo of the seed.|
|| Natural order of trees and shrubs including the myrtle.|
|| Water chestnut family. |
|| Small genus of Eurasian aquatic perennial herbs|
|| Water chestnut|
: Location and Movement
|Origin/ Native Range
|| Originated in Europe, Africa, Asia, Russia, China, and Indonesia.|
|| How and when did this species spread to places other than its native origin? |
Water Chestnut/Trapa natans escaped from the Harvard botanical gardens In 1859. The first observed case of Trapa natans was in 1884, in Sanders Lake in Schenectady. From there it was able to spread through interconnected water ways to Massachusetts and vermont. It was first reported in a southern part of vermonts lake
|Where is it now invasive?
||Is invasive in Massachusetts, Arizona, North Carolina, South Carolina and Vermont, New York, New|
Hampshire, Washington D.C, Delaware, Maryland, Pennsylvania, Virginia
|Is this species in Maine?
||No. It has not been found in Maine.|
|Where has it been identified?
|| The closest it has been found in Maine is New Hampshire. |
|How was this species introduced?
- Prefers lakes, slow moving streams and ponds. There are others. Where does it root itself?
|Climate and Temperature Range
||What are the specific temperatures it likes? How can it grow in Massachusetts if it likes sub tropical areas?|
|| It is a producer.|
|| Water Chestnut gets it's energy from the sun and photosynthesis.|
|| Galerucella nymphaeae What is this? There are a lot more natural enemies.|
|| Prevents light from getting to anything under it. What else?|
|| Can stop fishing, boating, swimming and other aquatic sports. How? Why?|
|| States pay millions to get it removed. Other?|
- Slows the function of cancer on preexisting blood vessels.