Opuntia matudae, with edible acidic peel, high productivity, late season. Origin: Universidad Autónoma Chapingo, Chapingo, Mexico by C. Gallegos-Vázquez. Selected from wild population of crasicaule scrub; tested as O-367; selected 2002; CNVV (Mexican National Catalog of Plant Varieties): XOC-023-031111; Nov. 2011. Tree: Fruit: small, 63.9 g; broad obovate; peduncle large, 14.4 mm; scar of receptacle moderately depressed, 5.3 mm; external coloration uniform medium red at maturity; internal peel reddish to whitish, with green tonalities; internal peel thickness high, 11.4 mm, typical of xoconostle; ratio of internal peel weight to total weight high, 84.66%; acidic, pH 3.1; funiculus pink, dry, and insipid; sugar content low, 6.3 °Brix; ripens in March, one year after flowering in Zacatecas, central northern Mexico; fruits can remain more than one year after maturation. Plant: bushy, short; cladodes broad obovate, yellowish green; 4-6 spines in central areola; central spine short, brittle, erect.