What are Plants?

[cwa46]

I came to this forum to see what other plants grow in the ocean besides mangroves and seagrass. Almost every thread here is about algae. Are there other "plants" that grow in the ocean that we can use to export nutrients, or for decoration?

[K. Lee]

Fundamentally, plants are of the Kingdom Plantae which are autotrophic multicellular organisms.

There are sea grasses, which is a start for your understanding, I hope.