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  1. May 2022
    1. Like all plants, the bulrush requires oxygen to produce energy. One solution is obvious: Send shoots skyward like straws to suck down oxygen to the roots.

      Plants don't require oxygen to produce energy (photosynthesis), they require CO2.

      https://www.lexico.com/definition/photosynthesis

      Oxygen is generated as a byproduct of this, not a requirement.