(DC) (National Arboretum)  Winter is the best time to enjoy the true mastery of the art of bonsai by observing the “bare bones” of the trees. With no leaves, the structure of a deciduous bonsai reveals how well the artist has created his miniaturized version of nature. The bonsai curator has selected trees from the museum’s permanent collection for a formal display of these living artworks. Other trees from the permanent collection will be on view throughout the winter in the covered Chinese Pavilion and the Tropical Greenhouse.