Packera glabella

Packera glabella (formerly Senecio glabellus) is one of several plants with the common name butterweed, this one has also been called cressleaf groundsel and yellowtop. It is native to central and southeastern North America. It is toxic when eaten by humans. [4]

Packera glabella
Butterweed
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Packera
Species:
P. glabella[1]
Binomial name
Packera glabella[1]
(Poir.) C. Jeffrey
Synonyms

Senecio glabellus Pior.
Senecio lobatus Pers.[2]
Senecio carolinianus Spreng.
Senecio densiflorus Mart.
Senecio lobatus Pers.
Senecio lyratus Michx.
Senecio mississipianus DC.[3]

Distribution

Butterweed is found from Texas north to South Dakota and east to Ohio with a disjunct population in Delaware. It grows in clay and loam soils in disturbed areas and in prairie and floodplain habitats.

Native
Nearctic:
Northeastern U.S.A.: Indiana
North-Central U.S.A.: Illinois, Kansas, Missouri, Nebraska, Oklahoma
Southeastern U.S.A.: Alabama, Arkansas, Florida, Georgia, Kentucky, Louisiana, Mississippi, North Carolina, South Carolina
South-Central U.S.A.: Texas

References
  1. Natural Resources Conservation Service (NRCS). "PLANTS Profile, Packera glabella (Poir.) C. Jeffrey". The PLANTS Database. United States Department of Agriculture. Retrieved 2008-04-22.
  2. Integrated Taxonomic Information System Organization (ITIS) (1999). "Packera glabella (Poir) C. Jeffrey". Integrated Taxonomic Information System on-line database. Retrieved 2008-04-01.
  3. Flora of North America. "22. Packera glabella (Poiret) C. Jeffrey, Kew Bull. 47: 101. 1992". 20: 548, 575, 585, 588, 601. Retrieved 2008-04-22. Cite journal requires |journal= (help)
  4. Germplasm Resources Information Network (GRIN) (2007-05-03). "Taxon: Packera glabella (Poiret) C. Jeffrey". Taxonomy for Plants. USDA, ARS, National Genetic Resources Program, National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved 2008-04-22.


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