Mahonia - ‘Golden Abundance’ is a cross between several species (including the Oregon Grape, Mahonia aquifolium), and is known for its particularly showy flowers.
<a href="//commons.wikimedia.org/wiki/User:Cliffo" title="User:Cliffo">Cliff Hutson</a>
CC BY 2.5
<span class="int-own-work" lang="en">Own work</span>