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m463yesterday at 11:54 PM3 repliesview on HN

on the other hand, many giant trees get the water out of the air via fog:

Coalescence of coastal fog accounts for a considerable part of the trees' water needs.[23]

https://en.wikipedia.org/wiki/Sequoia_sempervirens#Fog_and_f...

https://en.wikipedia.org/wiki/Sequoia_sempervirens


Replies

efskaptoday at 12:30 AM

Similarly, it blows my mind that all trees are made of air, specifically the carbon in it. I used to think that the biomass must come from the soil, but reality is more interesting.

show 3 replies
nomeltoday at 12:01 AM

Sequoia are still limited in height by gravity, probably due to capillary pressures. [1] If they evolved to be segmented, they could probably do it.

[1] https://www.sfgate.com/science/article/REDWOODS-How-tall-can...

hinkleytoday at 12:33 AM

There’s also a theory that the moss on these trees is mutualism instead of simply epiphytic. The moss holds moisture, which can be accessed by the tree.