Alaria marginata, the winged kelp, 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.
Alaria marginata is a low intertidal alga in the order Lamiariales (the kelps), first described by Postels and Ruprecht in 1840. Its name means "winged margins", referring to its sporophylls which spring from the base.
Genus | Alaria |
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Species | marginata |
Order | Laminariales |
Kingdom | Chromista |
Phylum | Phaeophyta |