22
seaweed
8
algae(noun, rootless)
6
fucus
4
moss
4
grapevine
4
herb
2
green algae
2
heterophyte
1
fungus
1
gulfweed
1
rockweed
1
succulent
1
saprophyte
1
sargasso
1
sargassum
1
sea lentil
1
sea moss
1
sea tangle(noun, expression, idiom)
1
sea wrack
1
seagrass
11 years ago|3.5k views|share |citing 
APASmart Define. (2015). kelp thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/kelp/thesaurus/synonyms
ChicagoSmart Define. 2015. "kelp thesaurus" https://smartdefine.org/kelp/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, kelp thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/kelp/thesaurus/synonyms>.
MLASmart Define. "kelp thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/kelp/thesaurus/synonyms>