Maize seedlings from lines with the “tallos gemelos” (TS) trait. Type I: normal seedling; all its structures can be seen. Type II: TS seedling with independent axes and normal aerial part. Type III: TS seedlings that share radicle, mesocotyl, and coleoptile, giving the impression of a single stalk. Type IV: TS seedling with rosette-shaped aerial part and one radicle. Type V: TS seedling with independent axes and fused radicles. Type VI: TS seedling with independent axes that share a radicle. Type VII: seedling with three (α) and four stalks (β) that share mesocotyl and coleoptile but have two separate radicles. Type VIII: seedling with three stalks and three fused radicles.