Children (6 direct children, 6 direct and indirect children):
Ectocarpus siliculosus var. adriaticus
Ectocarpus siliculosus var. arctus
Ectocarpus siliculosus var. dasycarpus
Ectocarpus siliculosus var. hiemalis
Ectocarpus siliculosus var. pygmaeus
Ectocarpus siliculosus f. varians