<p><b>Left</b>: Top of flowering branch of Acanthocereus subinermis.<br></p>
<b>Right</b>: Top of a fruiting branch of Acanthocereus subinermis.
<bdi><a href="https://en.wikipedia.org/wiki/en:Mary_Emily_Eaton" class="extiw" title="w:en:Mary Emily Eaton"><span title="British botanical illustrator">Mary Emily Eaton</span></a>
</bdi>
1920
From <i>The Cactaceae</i> (1919-1923) by Britton et Rose, Vol. II, Plate 16 images 2 &amp; 3