Triosteum Pinnatifidum

This very fine and extremely rare herbaceous plant, produces exceptional, broad oak-like foliage, which spears through the spring ground like unfurling umbrellas, and tubular white flowers, although the main attraction is the large, conspicuous, round white fruits, which appear in late summer. Commonly known as "Horse gentian" or, less commonly, "Feverwort", it is in a seldom-seen genus of flowering plant which has six species, three species being native to North America with three more in China and Japan. Another one for baffling the experts!