Taxon - Odkazy a literatura
Kew Science - Plants of the World online 2024-05 [3370-2]
Kew Science - Plants of the World online [https://powo.science.kew.org], Facilitated by the Royal Botanic Gardens, Kew [jako Aconitum columbianum var. howellii (A.Nelson & J.F.Macbr.) C.L.Hitchc.]
Datum citace: 30. leden 2025