"10.3732/ajb.1000363" . "Shifts in the flowering phenology of the northern Great Plains: Patterns over 100 years"^^ . . "98" . "935-945" . "2011"^^ . "10.3732/ajb.1000363" . . . _:genid1 . _:genid1 . _:genid1 . _:genid1 . _:genid1 . _:genid2 . _:genid2 . _:genid2 . _:genid2 . _:genid2 . _:genid3 . _:genid3 . _:genid3 . _:genid3 . . . . . . . . . . .