sea cabbage

American  

noun

1. a brown alga, Hedophyllum sessile, of the North Pacific, characterized by a compact mass of fronds resembling a cabbage.

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Etymology

Origin of sea cabbage

First recorded in 1725–35

Example Sentences

"Genetic diversity is a resource for us too as humans, especially the wild relatives of crops. We've got quite a few in Wales, like sea radish, sea carrot, sea cabbage," said Kevin.

From BBC • Apr. 11, 2026

The anthraxolite is believed to be the remains of ancient plants, a kind of sea cabbage that lived when the limestone was forming and that may have played a role in creating the diamond pockets.

From New York Times • Jul. 28, 2011