Photosynthetic hair for a plant based spine?

Because I need a spine that works for massive and small creatures I'm thinking of making a plant-based spine (which has its own DNA). The spine acts kind of like a cucumber, in that when it sucks up more water it becomes sturdier, but when it loses water it becomes soft and malleable. A system of muscles squeezes on the spine to make it lose/gain water, like a sponge.

Because these creatures are humanoids, I figured I could put some form of photosynthetic hair on them, like a root comes up through the neck and sprouts out of the skull, allowing the spine to get all of the light it needs to grow with the organism.

Is this feasable? And, if so, what do you think the hair would looke like? (more like wide flower leaves, pine needles, or perhaps even hair-like?)

posted about 7 years ago

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