Ceanothus parvifolius ( littleleaf ceanothus) bush, branches and blue flower-clusters, showing small unserrated leaves.  
<ul><li>At 6000ft, on road from Crane Flat to the Tuolumne Grove of giant sequoias, Sierra Nevada, California.</li></ul>
<a href="//commons.wikimedia.org/wiki/User:Dcrjsr" title="User:Dcrjsr">Dcrjsr</a>
CC BY 3.0
<span class="int-own-work" lang="en">Own work</span>