Children (4 direct children, 4 direct and indirect children):
Tanacetum argenteum argenteum
Tanacetum argenteum subsp. argenteum
Tanacetum argenteum canum
Tanacetum argenteum subsp. canum
Tanacetum argenteum flabellifolium
Tanacetum argenteum subsp. flabellifolium
Tanacetum argenteum var. pumilum