Illustration of <i>Berberis dictyophylla</i>
Joseph Dalton Hooker (1817-1911)
1902
Curtis's botanical magazine vol. 128 ser. 3 nr. 58 tabl. 7833 (<a rel="nofollow" class="external free" href="http://www.botanicus.org/page/662880">http://www.botanicus.org/page/662880</a>)