Difference between revisions of "Packera glabella"
Kew Bull. 47: 101. 1992.
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|common_names=Butterweed | |common_names=Butterweed | ||
− | |basionyms={{Treatment/ID/ | + | |special_status={{Treatment/ID/Special_status |
+ | |code=F | ||
+ | |label=Illustrated | ||
+ | }}{{Treatment/ID/Special_status | ||
+ | |code=E | ||
+ | |label=Endemic | ||
+ | }} | ||
+ | |basionyms={{Treatment/ID/Basionym | ||
|name=Senecio glabellus | |name=Senecio glabellus | ||
|authority=Poiret | |authority=Poiret | ||
− | }} {{Treatment/ID/ | + | |rank=species |
+ | |publication_title=in J. Lamarck et al., Encycl. | ||
+ | |publication_place=7: 102. 1806 | ||
+ | }} {{Treatment/ID/Basionym | ||
|name=Senecio lyratus | |name=Senecio lyratus | ||
|authority=Michaux | |authority=Michaux | ||
+ | |rank=species | ||
+ | |publication_title= | ||
+ | |publication_place=1803 | ||
}} | }} | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
|name=Senecio carolinianus | |name=Senecio carolinianus | ||
|authority=Sprengel | |authority=Sprengel | ||
+ | |rank=species | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Senecio densiflorus | |name=Senecio densiflorus | ||
|authority=M. Martens | |authority=M. Martens | ||
+ | |rank=species | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Senecio lobatus | |name=Senecio lobatus | ||
|authority=Persoon | |authority=Persoon | ||
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}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Senecio mississipianus | |name=Senecio mississipianus | ||
|authority=de Candolle | |authority=de Candolle | ||
+ | |rank=species | ||
}} | }} | ||
|hierarchy=Asteraceae;Asteraceae tribe Senecioneae;Packera;Packera glabella | |hierarchy=Asteraceae;Asteraceae tribe Senecioneae;Packera;Packera glabella | ||
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name=Packera glabella | name=Packera glabella | ||
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|authority=(Poiret) C. Jeffrey | |authority=(Poiret) C. Jeffrey | ||
|rank=species | |rank=species | ||
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|publication title=Kew Bull. | |publication title=Kew Bull. | ||
|publication year=1992 | |publication year=1992 | ||
− | |special status= | + | |special status=Illustrated;Endemic |
− | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V20_1311.xml |
|tribe=Asteraceae tribe Senecioneae | |tribe=Asteraceae tribe Senecioneae | ||
|genus=Packera | |genus=Packera |
Latest revision as of 21:00, 5 November 2020
Annuals or biennials, 20–70+ cm; fibrous-rooted (caudices relatively short, weak). Stems 1 (striated, frequently hollow, often pink- to purple-tinged), glabrous or leaf axils sparsely tomentose. Basal leaves (and proximal cauline) obscurely petiolate; blades obovate to oblanceolate, sometimes lyrate (lateral lobes to 5 pairs, terminal lobes larger than laterals), 50–150+ × 10–30+ mm, bases tapering, ultimate margins crenate to irregularly undulate. Cauline leaves gradually reduced (weakly clasping, similar to basal). Heads 8–30+ in umbelliform or cymiform arrays (robust plants with multiple arrays). Peduncles bracteate, glabrous or bases tomentose. Calyculi conspicuous (bractlets 2.5–4 mm). Phyllaries (13–)21, green, 5–7 mm, glabrous. Ray florets (8–)13; corolla laminae 7–9 mm. Disc florets 35–50+; corolla tubes 2.5–3.5 mm, limbs 2–3 mm. Cypselae 1–1.5 mm, sparsely hirtellous on ribs or glabrous; pappi 3–4 mm. 2n = 46.
Phenology: Flowering (Feb–)mid Mar–late May.
Habitat: Open wet areas, edges of woodlands, stream banks, roadsides, meadows, marshes, fallow fields
Elevation: 0–600 m
Distribution
![V20-1311-distribution-map.gif](/w/images/0/0b/V20-1311-distribution-map.gif)
Ala., Ark., Fla., Ga., Ill., Ind., Kans., Ky., La., Miss., Mo., Nebr., N.C., Ohio, Okla., S.C., Tenn., Tex.
Discussion
Packera glabella is common and almost weedy in wet, partially shaded places. The hollow, striated stems of P. glabella are distinctive.
Selected References
None.