Talk:Water caltrop
From Wikipedia, the free encyclopedia
Contents |
[edit] Invasiveness information
The following text was added to Chinese water chestnut, but I believe it was intended for this article. Although it is good first effort for a new editor, I have placed it here rather than directly in the article because I believe it needs to be rewritten and referenced.
Confusing or surprising claims particularly deserving clarification:
- An aquatic plant has been declared a noxious weed in the largely desert state of Arizona.
- It has been declared a nuisance in three states where it does not occur (Arizona, North Carolina, and South Carolina), but not in three of the four states where it does occur (Maryland, New York, and Pennsylvania).
- Problematic populations occur in the Potomac River, but not in Virginia, a large part of whose northern border is defined by that river.
The same editor contributed some descriptive information, which I merged into this article.
— Pekinensis 16:52, 29 August 2005 (UTC)
[edit] _
Water chestnut has become such a nuisance in the US as to be declared a noxious weed in Arizona, Massachusetts, North Carolina and South Carolina. It shares this honor with kudzu, another plant native to Asia. Both plants are edible. Presently, water chestnut can be found in Maryland, Massachusetts, New York and Pennsylvania, with most problematic populations occurring in the Connecticut River valley, Lake Champlain region, Hudson River, Potomac River and the upper Delaware River.
Water chestnut can form dense floating mats, severely limiting light -- a critical element of aquatic ecosystems. This plant can also reduce oxygen levels, which may increase the potential for fish kills. It competes with native vegetation and is of little value to waterfowl. Water chestnut infestations limit boating, fishing, swimming and other recreational activities.
[edit] Old name: Water calthrop ?
I'm not sure I understand your question. Could you expand? Are you asking about the spelling, "caltrop" vs "calthrop"? — Pekinensis 18:09, 13 September 2005 (UTC)
- i found this name written like above in piekarski- medical parasitology about 1962.
- old form of the name ?
-
- I believe it is only a misspelling of caltrop, but of course I can't be sure. — Pekinensis 14:44, 17 September 2005 (UTC)
[edit] Confusion?
The photograph used seems to show Trapa bicornis, not Trapa natans as the legend implies. Would a botanist confirm, please? --Gak