Jarrin Root
Jarrin Root is a rare plant unique to the island of Stros M'Kai. It is extremely toxic, and eating it will result in instant death. For this reason, it is highly prized for use as a poison. Found in:
Jazbay is a sprawling, low growing plant most commonly found in the volcanic tundra of Eastmarch. The plant produces grapes known for their flavor and acidity. The grapes were once reserved only for emperors due to their exceptional flavor, and picking them was considered treason. Growers in Skyrim were successful in improving the survivability of the plant, but at the cost of the taste. It is no longer illegal to pick the grapes, although harvesting them in large amounts is still frowned upon by the law. The acidity of the grapes makes them a perfect fertiliser for nirnroot, and they are highly useful to alchemists.
Juniper are stocky silvery trees, common throughout The Reach region in Skyrim, which produce a berry often used to enhance the flavor of mead.