OFFICIAL HORSETAIL KELP - Common name: horsetail kelp, finger kelp– is wild harvested in its normal habitat/environment. OFFICIAL HORSETAIL KELP – is wild harvested in its normal habitat /environment and is farmed grown without chemicals and sourced from a trusted grower who cultivates our OFFICIAL HORSETAIL KELP without chemicals. Our OFFICIAL HORSETAIL KELP, is a seaweed native to the rocky northern Atlantic.