the language of trees

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Wonder why one row of white pines along a local greenway all have pine cones, while another row a short distance away does not have any?

I've noticed this before. The groups of white pines that produce cones any given year must plan so in advance, but how? Do they whisper sweet nothings to each other in the night?

It's like the oaks: when they have a super-duper crop of acorns, which they do not do every cycle, how do they all know in advance to do it? This past fall was a bountiful mast year here in the valley, but how do they do it in sync?

How do trees communicate?

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