No, they are just referred to as German or Germans.
They would be a naturalized citizen.
germinate then sprout
A person born or naturalized in the United States is considered a citizen. The process for becoming a citizen can take years.
Certificate Of Citizenship.
naturalized citizeens
he is a German born u.s. citizen
Passports are only issued to citizens of the country concerned. For German citizenship. what is decisive is the parents' citizenship, not the country of birth.
http://en.wikipedia.org/wiki/German_citizenship#Descent_from_a_German_parent
When a seed begins to grow/sprout it is known as germination.
Citizens, or naturalized citizens.
Germination
Cells do not germinate. Seeds germinate.