A Japanese Black Pine (<i>Pinus thunbergii</i>) bonsai on display at the National Bonsai &amp; Penjing Museum at the United States National Arboretum. According to the tree's display placard, it has been in training since 1936. It was donated by Yee-sun Wu.
<a rel="nofollow" class="external text" href="http://ragesoss.com">Sage Ross</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>