Thank you. I'm still researching for the correct name between those 2.

kathy wrote:

Hmmmm, it kind of looks like water celery or water parsley
to me. Or have you ruled those out?

water celery
http://www.koivet.com/html/articles/...?article_id=55

or water parsley
http://www.nre.vic.gov.au/trade/asiaveg/thes-69.htm

kathy