Oldak says: ++++++++++++++++ Just some quick Google results: +"Water chestnut" +"Eleocharis dulcis" ( http://www.google.co.uk/search?q=%2B%22Water+chestnut%22+%2B%22Eleocharis+du... ) produces 807 results)

+"Water chestnut" +"Trapa natans" ( http://www.google.co.uk/search?hl=en&safe=off&client=firefox&rls... ) gives 25,700 results

Without searching further, wouldn't the page (were it not a disambiguation page) better point to T. natans, rather than E. dulcis as you suggest? +++++++++++++++++

Oldak, I don't mean to be snippy, but, I don't really care what Google results on that search say, if (according to Wikipedia)...

Water caltrop is: "sold as an occasional streetside snack in the south of" China.

Eleocharis dulcis is: "The small, rounded corms http://en.wikipedia.org/wiki/Corm have a crispy white flesh and can be eaten raw, slightly boiled, grilled, pickled, or tinned http://en.wikipedia.org/wiki/Canning. They are a popular ingredient in Western-style Chinese dishes. In China, they are most often eaten raw, sometimes sweetened. They can also be ground into a flourhttp://en.wikipedia.org/wiki/Flourwhich is used especially to make fried cakes called *matigao* (马蹄糕; mǎtí gāo). They are unusual among vegetables for remaining crisp even after being cooked or canned."

Which one do you think 98% of Wikipedia users are actually searching for? How many of them might be confused by their "eenie meenie mynie moe" on the disambiguation page.

And Thomas Dalton said: ********************** It would appear that two different plants are known as "Water chestnut" and neither is significantly more important than the other, so we have a disambig page. ********************** To which I'd say, see "above".

By the way, great point from Andrew Gray about the "corn" issue, especially in Europe. Maybe "corn" was not my best counter-example. How about: [[Nutmeg]]?