Synonym (also Jordan Akalb, Jordan Alb, Jordan Pineapple, Jordan Galben, Jordan Verde, Jordana, Jordovan, etc.) for the vine variety Iordan; see there.
Serious sources on the internet are rare - and Wine lexicon from wein.plus is one such source. When researching for my articles, I regularly consult the wein.plus encyclopaedia. There I get reliable and detailed information.Thomas Götz
Weinberater, Weinblogger und Journalist; Schwendi