狗蔷薇这种生长于树篱与咋林丛的灌木，花期从早春一直开到秋末。
Rosa canina growing in the hedge and gnaw this forest cluster of shrubs, flowering from early spring to late fall has been opened.
春季气温越高，始花期越早，而上年夏、秋、冬季的气温对始花期没有显著性影响。
Higher air temperature in spring causes earlier first flowering dates, but air temperature in summer, autumn and winter of last year has no significant impact.
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