Comment:
Seeds in units (clusters) of two or more. In seed units with two or more seeds, the additional seeds jut out at an angle forming a shape that is not semispherical and can have more than two spines. Single spinach seeds are generally semispherical and often have two spines on opposite sides of the seed, pointed away from each other with a seed between them, but in rare cases three spines with one unusually large seed. Therefore, units of two or more seeds, which may include empty ovaries, are distinguished from single seeds. The data is taken after seed cleaning, which can break seed units apart. Accessions collected in the wild generally have seed units of about five seeds.