Biology:Packera paupercula
| Packera paupercula | |
|---|---|
| |
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Packera |
| Species: | P. paupercula
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| Binomial name | |
| Packera paupercula (Michx.) Á.Löve & D.Löve
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| Synonyms[1] | |
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Packera paupercula is a flowering plant species of the genus Packera and family Asteraceae, native to North America, where it is widespread across Canada and much of the United States.[1] Its common names include balsam ragwort and balsam groundsel.[2] It is a perennial herb that grows 1–3 feet (0.30–0.91 metres) tall.[3] Its habitats include wet meadows, open woodlands, and rocky outcrops.[4]
It flowers as early as April in the southern part of its range, and as late as August in the northern part of its range.[1][5]
Taxonomy
Packera paupercula taxonomically complex, with varying amounts of infraspecific taxa recognized by different authorities. No single classification to date has received wide acceptance.[1][5] The Royal Botanic Gardens, Kew currently recognizes the following varieties:[6][7]
- P. paupercula var. appalachiana - Restricted to the Appalachian Mountains
- P. paupercula var. paupercula - Widespread from Newfoundland to Alaska, south through the Rocky Mountains and Appalachians
- P. paupercula var. pseudotomentosa - Native to the Midwest, Upper South, and Ontario
- P. paupercula var. savannarum - Restricted to the upper Midwest
Variety pseduotomentosa is identified by its permanent tomentose pubescence and stoloniferous growth
References
- ↑ 1.0 1.1 1.2 1.3 Trock, Debra K. (2006), "Packera paupercula", in Flora of North America Editorial Committee, Flora of North America North of Mexico (FNA), 20, New York and Oxford, http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=242416912, retrieved 2008-05-22
- ↑ Packera paupercula. NatureServe. 2012.
- ↑ "Lady Bird Johnson Wildflower Center - The University of Texas at Austin". https://www.wildflower.org/plants/result.php?id_plant=PAPA20.
- ↑ "Packera paupercula in Flora of North America @ efloras.org". http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=242416912.
- ↑ 5.0 5.1 Weakley, Alan (2015). "Flora of the Southern and Mid-Atlantic States". http://www.herbarium.unc.edu/flora.htm.
- ↑ "Hylodesmum". Royal Botanical Gardens, Kew. https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:180009-2.
- ↑ Mahoney, Alison; Kowal, Robert (1 May 2008). "Three New Varieties of Packera paupercula (Asteraceae, Senecioneae) in Midwestern and Southeastern North America". Novon: A Journal for Botanical Nomenclature 18 (2): 220–228. doi:10.3417/2006016. https://www.biodiversitylibrary.org/page/16438931#page/220/mode/1up. Retrieved 2 September 2019.
External links
Wikidata ☰ Q7122974 entry
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