Verbatim text: Packer, J. G. 1972. A taxonomic and phytogeographical review of some arctic and alpine Senecio species. Canad. J. Bot. 50: 507–518.
Author: Packer, J.G.
Year: 1972
Title: A taxonomic and phytogeographical review of some arctic and alpine Senecio species
Journal: Canad. J. Bot
Volume: 50
Pages: 507–518