Described herein is a new and distinct blackberry variety with varietal denomination ‘Plablack 1401’, characterized by a combination of traits which include, but are not limited to, weak anthocyanin coloration of dormant cane, many spines density, and abundant production of oblong shaped, and medium fruit size, a primocane fruiting habit that produces and maintains a strong vigorous plant with consistent fruit production on primocanes.
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