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Winged Kelp

Alaria marginata


Alaria marginata is a brown alga species in the genus Alaria. It can grow up to 13 feet. Fronds are long and narrow with raised midrib and wavy edges. Each frond has two rows of several smooth, oblong, 5 inch spore-bearing blades at the base in winter. The base is attached to rocks.


Spotted on exposed rocks at low tide.

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Spotted by

Washington, USA

Spotted on Apr 7, 2019
Submitted on Apr 13, 2019

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