The Columbian exchange (this is the correct spelling) transferred a diverse set of crops and livestock animals between the Old and New Worlds. However, I have begun to wonder if there were any crops and animals that were common to both.
Wikipedia provides a wealth of information on the subject of the Columbian exchange, but it only describes what was transferred, with no mention of common crops or livestock to the two regions. Likewise, just Googling anything including the term "Columbian Exchange", as well as variations like "Columbian Exchange common crops" and even "columbian exchange -maize", gave me a lot of information on what was exchanged, but very little on things that were not exchanged, and I have found nothing on common crops and livestock animals.
Were there any crops and livestock common to both the Old and New Worlds, or were all crops and livestock novel to the region opposing their region of origin?