ISI 2015-7. Matucana tuberculata (Donald) Bregman

This charming globular cactus offsets to form freely-flowering clumps. The zygomorphic flowers open sideways like small, colorful periscopes and can appear repeatedly over several weeks in summer. Our plants came to us under the unpublished name of Matucana mammillaris with the Karel Knize collection number KK 1639, which is supposed to be Pereskia saccharosa. In any case, the species is known only from near El Chagual, along the Río Marañón, La Libertad, Peru. HBG 123346. $7.

two big blooms out the top
Photo © 2015 by Karen Zimmerman. Images may not be used elsewhere without permission.

Published in the Cactus and Succulent Journal, Vol. 87 (3), May - June, 2015