S. Ì. Bukasov. Potatoes of South America and their breeding use, Leningrad, 1933, p. 91.
Diagnosis: Probably transitional from Soldada to europaeum. Well distinctive form, probably closer to Reina.
Upper pedicel is big, corolla is lilac, stamen filaments are thick, anthers have a colored blue suture or back and slightly colored burrows, in a straight column.
Similarity with Soldada: large upper pedicel, shape of calyx, but the short pubescence is a few longer.
Distinctions from Soldada: absence of basiscopic primary leaflets, big anthers, anther column is more oval, flattened stigma.
Grown in Yutuy. Juz. 1996 under the name Pichuna.