Thornless erect blackberry that is early ripening with large, high-quality berries for fresh market. Origin: University of Arkansas, by J.R. Clark and J.N. Moore. Ark. 2005 × Ark. 1857; crossed 1998; selected 2001; tested as A-2241, introd. 2007. USPP 20,891; 30 Mar. 2010. Tree: erect to semi-erect; thornless; good vigor; consistent high yields; moderately resistant to anthracnose (Elsinoe veneta). Fruit: elongated, somewhat blocky; large; very attractive; glossy; very firm; SS 9.5%; good postharvest storage; ripens 5 June in Clarksville with Arapaho, 7 d before Ouachita, 20 d before Apache.