[1][2] Dictyota sandvicensis reaches up to 15 cm in height, and has a iridescent yellow greenish color.

[1] Dictyota sandvicensis consists of a single basal thallus that is firmly rooted and can support rhizoids.

[3] Dictiyota sandvicensis can be founded in mid- to low-tide pools, on low intertidal benches and on reef flats growing on rocks or as epiphytes on other algae in shallow waters up to 7m depth.

[3][4] Limu is a regular part of the diet and is considered to contain more vitamins and essential mineral nutrients than other staple food items.

[5] Dictyota sandvicensis icontainins proteins, lipids, carbohydrates, minerals, and vitamins and has a caloric content of over cal g-1 ash-free dry weight.