The scientists behind this research called it "tea." The actual paper isn't clear on what the species is but it appears to be genus Camellia. The reason it has

The scientists behind this research called it "tea." The actual paper isn't clear on what the species is but it appears to be genus Camellia. The reason it has no caffeine is a mutation in the caffeine synthase gene, not a lack of any attempt at a caffeine-producing structure at all (as with brewing other plants' leaves).