Packera (updated 2018): after botanist John G. Packer (1929- ), specialist on the flora of Alberta and on Arctic and alpine flora, instructor in the Department of Botany at the University of Alberta 1958-1988, co-author with Cheryl Bradley of Checklist of the rare vascular plants in Alberta (1984). (contributed by Cynthia Powell)
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2018 Susan McDougall:!2018 Susan McDougall:!
Information on California plants for education, research and conservation,
with data contributed by
public and private institutions and individuals,
Consortium of California Herbaria.[web application]. 2023. Berkeley, California:The Calflora Database
[a non-profit organization].Available: