Harpoon Weed (Asparagopsis Armata)
Latin name: Asparagopsis armata
Common name: Harpoon weed
Distribution: Mediterranean, Atlantic.
Habitat: This red algae is attached to shady places on lower shorelines.
Size: 10cm to 20cm long frond.
Shape: Long and slender; stem with irregularly placed branches which are covered with tiny, spirally distributed branchlets, bears barbs and thorns.