Algae, macroalgal, and kelp, such as oarweed and laminaria hyperboria, and species of maerl are found as well.
From the en.wikipedia.org
Laminaria japonica, the important commercial seaweed, was first introduced into China in the late 1920s from Hokkaido, Japan.
From the en.wikipedia.org
Renelique gave Williams laminaria, a drug that dilates the cervix, and prescribed three other medications, according to the administrative complaint filed by the Health Department.
From the foxnews.com
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Type genus of the family Laminariaceae: perennial brown kelps
Laminaria is a genus of 31 species of brown algae (Phaeophyceae), all sharing the common name "kelp". This economically important genus is characterized by long, leathery laminae and relatively large size. ...
Inserting seaweed sticks into the cervix, which then swell and slowly dilate the cervix prior to induced abortion.