Poinsettia is popular flower for Christmas season in Japan. Red leaf is bract.
<a rel="nofollow" class="external text" href="https://flickr.com/photos/76351162@N00">酎犬 八号</a> from Aichi, Japan
CC BY 2.0
<a rel="nofollow" class="external free" href="https://flickr.com/photos/76351162@N00/2430526">https://flickr.com/photos/76351162@N00/2430526</a>