It is not extinct two of the three populations were flowering well in 2011
Euphrasia Donnelly was born in 1905.
Euphrasia Donnelly died in 1963.
Euphrasia collina was created in 1810.
Euphrasia of Constantinople was born in 380.
Euphrasia of Constantinople died on 410-03-13.
Mary Euphrasia Pelletier was born in 1796.
Mary Euphrasia Pelletier died in 1868.
They are not extinct.
They are not extinct.
They are not extinct.
The are not fully extinct but nearly extinct.
Most become extinct because they can not adapt to changes in their environments. Those that can don't become extinct.