They don’t call water the building block of life for nothing, most living things need it. The palo verde tree, however, has managed to skate by needing it a lot less than the rest of us.
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https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1086798/pdf/plntphys00504-0138.pdf
https://ps.ueb.cas.cz/pdfs/phs/2014/01/02.pdf
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https://www.researchgate.net/profile/Eleinis-Avila-Lovera/publication/326329369_Water-use_efficiency_is_higher_in_green_stems_than_in_leaves_of_a_tropical_tree_species/links/5b49315da6fdccadaec7ce26/Water-use-efficiency-is-higher-in-green-stems-than-in-leaves-of-a-tropical-tree-species.pdf
https://doi.org/10.1016/S0065-2296(00)31005-9 or https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4242265/
https://doi.org/10.1002/ajb2.1572
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