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Delay of bloom blamed on climate change

Flowers that fail to open early in spring may be taking cue from previous autumn

Oddball spring flowers that seem unaffected by climate change — or have gotten it backwards — could be taking some cues from unusual autumns the year before.

Like their early flowering peers, plants in a new study show that many of these on-time and late bloomers also have had their timing shifted by a warming globe — but the paradoxical effects have just been more difficult to observe.

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