Harpoon weed

Harpoon weed

Observation - Harpoon weed - UK and Ireland. Description: Lots of this pretty feather like red seaweed found in Cornish rockpools very low on the shore /subtidally in south Cornwall. I think it must be the invasive Harpoon weed.

Lots of this pretty feather like red seaweed found in Cornish rockpools very low on the shore /subtidally in south Cornwall. I think it must be the invasive Harpoon weed.