#intertidal-kelp

2 articles

Sea Cabbage: Hedophyllum, the Hand-Size Kelp of the Low Shore

Sea cabbage (Hedophyllum sessile) is a tough, leathery kelp of the wave-washed low intertidal. Its biology, range, ecology and how to identify it on the shore.

Dr. Theo Nakamura · September 26, 2026

Encyclopedia8 min read

Sea Palm (Postelsia palmaeformis): The Intertidal Palm Tree Species Profile

The sea palm lives where waves hit hardest — a flexible-stiped kelp that bends with the swell. Its biology, mussel-bed alliance and why foraging it is wrong.

Dr. Mara Ellison · September 26, 2026

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