Halimeda kanaloana is a species of green algae (class Ulvophyceae) in the family Halimedaceae.

[1] Halimeda kanaloana is characterized by a large, bulbous holdfast that anchors the specimen in sand.

The basal thallus region consists of massive cylindrical to slightly flattened segments.

[2] These utricles reach 42% of their maximal width at a quarter of their height and have angular corners in surface view.

Occasional individuals are found as shallow as 1–2 m, with dense stands beginning at 15 m and ending abruptly around 85 m.[4] Specimens are anchored in sand by means of a gritty, bulbous anchoring holdfast, up to 8 cm in length, which the rhizoids cling tightly to sand.