What are the features of seaweed?

Characteristics of Seaweed. By Suzanne Fyhrie Parrott; Updated April 25, 2017. Seaweeds either attach to a hard substrate or are free-floating. Seaweeds, also known as macroalgae, comprise a diverse group of organisms representing various growth forms. read more

The three seaweed groups include brown (Phaeophyta), red (Rhodophyta) and green (Chlorophyta) with kelps included in the brown group. The brown group contains approximately 1,500 species, and comprises the largest and most complex body structure of any other algae. Most species are marine and benthic (attach to the ocean floor or other hard surface). read more

Seaweeds are actually algae. Rockweed, kelp, sea lettuce and dulse are all well-known seaweeds. More than 25000 species of plants are classified as algae. Sea weeds are consumed in many European societies. Although many of the large, familiar seaweeds are shades of brown, there may be yellow, purple, pink and deep violet. read more

If that's what you mean, then it is salty, chewy, and tastes like canned spinach. If you mean the chemical properties, then iodine can be extracted from it. read more

"Seaweed" is a colloquial term and lacks a formal definition. A seaweed may belong to one of several groups of multicellular algae: the red algae, green algae, and brown algae. As these three groups do not have a common multicellular ancestor, the seaweed are in a polyphyletic group. read more