Hawaiian
Limu kohu (Asparagopsis taxiformis), a red alga prized for its delicate iodine-rich flavour, is the definitive poke seaweed. Ogo (Gracilaria spp.), crunchier and more widely available, is the everyday cooking seaweed. Limu was gathered by women specialists who understood tidal patterns and seasonal availability. Fresh limu degrades faster than fish — a few hours at ambient temperature can destroy it. The traditional practice of gathering and using it the same day exists for quality, not romance.
Pacific Migration Trail