![Uncredited This image provided by the Missouri Botanical Garden shows a small Camellia sinensis plant. The plant's leaves are used to make white, green, black and oolong teas. (Missouri Botanical Garden)](https://mapi.associatedpress.com/v2/items/e6761cdfc4ce4e9c83c13fc1897a939d/preview/preview.jpg?s=680x&wm=false)
This image provided by the Missouri Botanical Garden shows a small Camellia sinensis plant. The plant's leaves are used to make white, green, black and oolong teas. (Missouri Botanical Garden)
![Uncredited This image provided by the Missouri Botanical Garden shows a Camellia sinensis flower blooming on a plant. The plant's leaves are used to make white, green, black and oolong teas. (Missouri Botanical Garden via AP)](https://mapi.associatedpress.com/v2/items/ab8d40477f2e4f7ca3693a7fdf7ceaaa/preview/preview.jpg?s=680x&wm=false)
This image provided by the Missouri Botanical Garden shows a Camellia sinensis flower blooming on a plant. The plant's leaves are used to make white, green, black and oolong teas. (Missouri Botanical Garden via AP)
![Uncredited This image provided by the Missouri Botanical Garden shows a hedge of Camellia sinensis plants. The plant's leaves are used to make white, green, black and oolong teas. (Missouri Botanical Garden via AP)](https://mapi.associatedpress.com/v2/items/ae67cbcedeac4d8582ee602808b02b51/preview/preview.jpg?s=680x&wm=false)
This image provided by the Missouri Botanical Garden shows a hedge of Camellia sinensis plants. The plant's leaves are used to make white, green, black and oolong teas. (Missouri Botanical Garden via AP)