Kew World Checklist of Selected Plant Families, botanical information system at the Royal Botanic Gardens, Kew, available at http://apps.kew.org/wcsp/home.do
Reference for:
Euphorbia hepatica
Source:
Malpighiales of North America Update
Acquired:
2011-08-26
Notes:
Updated for ITIS by the Flora of North America Expertise Network, in connection with an update for USDA PLANTS (2007-2010)
Reference for:
Euphorbia hepatica
Source:
Euphorbia Planetary Biodiversity Inventory database
Acquired:
2016-11-01
Notes:
Riina, R. and Berry, P.E. (coordinators). 2016. Euphorbia Planetary Biodiversity Inventory database. Available from Tolkin (http://app.tolkin.org/projects/72/taxa)