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Packera glabella (Poir.) C. Jeffrey

Cressleaf groundsel, butterweed

KingdomPlantaePlants, but not fungi, lichens, or algae
SubkingdomTracheobiontaVascular plants—plants with a “circulatory system” for delivering water and nutrients
DivisionMagnoliophytaFlowering plants, also known as angiosperms
ClassMagnoliopsidaDicotyledons—plants with two initial seed leaves
SubclassAsteridaeA large class that encompasses asters
OrderAsteralesFlowering plants with a central disk flower and surrounding petals, like daisies
FamilyAsteraceaeThe aster family, which also includes daisies and sunflowers; from the Greek ἀστήρ, “star,” for the star-shaped flowers
GenusPackeraNamed 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), one of the editors of the English edition of Flora of the Russian Arctic (2000), co-author with his wife of Some Common and Interesting Plants of San Miguel de Allende (Mexico). He also revised E.H. Moss’s Flora of Alberta (1983), worked to protect Mountain Park in the Canadian Rockies from an open-pit coal mine, and is currently contributor and on the editorial committee for Flora of North America
SpeciesglabellaRather or somewhat glabrous

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Senecio glabellus Poir.

Senecio lobatus Pers.


Packera glabella description by Thomas H. Kent, last updated 25 May 2020.

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Packera glabella (cressleaf groundsel, butterweed)

7/15/2011 · Susan and Raimond’s ID is uncertain

Packera glabella (cressleaf groundsel, butterweed)

7/15/2011 · Susan and Raimond’s ID is uncertain


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