Burdock flowers, which are found in the outside world [1], are used in traditional medicine, and have an effect on dinosaurs similar to the effect of catnip on felines.
Arctium longevus, a species of thistle native at Dinotopia, is related to common burdock genus of Old and New Worlds.
Behind the Scenes[]
In the real world, burdock flowers are also used for wholistic medicine.