What are seaweeds?

Some articles on seaweeds, seaweed:

Kelp
... Kelps are large seaweeds (algae) belonging to the brown algae (Phaeophyceae) in the order Laminariales ... the 19th century, the word "kelp" was closely associated with seaweeds that could be burned to obtain soda ash (primarily sodium carbonate) ... The seaweeds used included species from both the orders Laminariales and Fucales ...
History Of Phycology - Development of Public Awareness
... Landsborough (c.1779–1854) A Popular History of British Seaweeds.. ... in 1857 Louisa Lane Clarke (c.1812–1883) The Common Seaweeds of the British Coast and Channel Islands.. ... in 1865 S.O.Gray (1828–1902) British Seaweeds.. ...
Great Bay (New Hampshire) - Natural Heritage
... Rocky intertidal habitat provides firm anchorage for seaweeds, barnacles, and ribbed mussels ... Each winter, much of the standing crop of seaweeds becomes entrapped in ice ... When the ice begins to break up in spring, the seaweeds are torn from the rocks and enter into the detrital cycle ...
Environment and Special Species - Lai Chi Wo Nature Trail - Seaweeds
... There are four main kinds of seaweeds in Hong Kong ... Lai Chi Wo is the only place, and also the largest bed that we can find this kind of seaweed ... This seaweed bed mat the shore for more than 2 hectares on the wild open mudflat ...