familyAsteraceae
genusSymphyotrichum
Show Lower Taxa
Difference between revisions of "Symphyotrichum sect. Conyzopsis"
Phytologia 77: 271. 1975.
Basionym: Conyzopsis Torrey & A. Gray Fl. N. Amer. 2: 162. 1841
Synonyms: Aster subg. Conyzopsis Undefined sect. Brachyactis Ledebour
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|name=Conyzopsis | |name=Conyzopsis | ||
|authority=Torrey & A. Gray | |authority=Torrey & A. Gray | ||
| + | |rank=unranked | ||
|publication_title=Fl. N. Amer. | |publication_title=Fl. N. Amer. | ||
|publication_place=2: 162. 1841 | |publication_place=2: 162. 1841 | ||
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|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
|name=Aster subg. Conyzopsis | |name=Aster subg. Conyzopsis | ||
| − | |authority= | + | |authority= |
| + | |rank=subgenus | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Undefined sect. Brachyactis | |name=Undefined sect. Brachyactis | ||
|authority=Ledebour | |authority=Ledebour | ||
| + | |rank=section | ||
}} | }} | ||
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Symphyotrichum;Symphyotrichum subg. Symphyotrichum;Symphyotrichum sect. Conyzopsis | |hierarchy=Asteraceae;Asteraceae tribe Astereae;Symphyotrichum;Symphyotrichum subg. Symphyotrichum;Symphyotrichum sect. Conyzopsis | ||
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name=Symphyotrichum sect. Conyzopsis | name=Symphyotrichum sect. Conyzopsis | ||
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|authority=(Torrey & A. Gray) G. L. Nesom | |authority=(Torrey & A. Gray) G. L. Nesom | ||
|rank=section | |rank=section | ||
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|publication year=1975 | |publication year=1975 | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V20_1118.xml |
|tribe=Asteraceae tribe Astereae | |tribe=Asteraceae tribe Astereae | ||
|genus=Symphyotrichum | |genus=Symphyotrichum | ||
Latest revision as of 20:58, 5 November 2020
Annuals (sometimes perennials in S. frondosum); taprooted. Stems usually branched. Heads radiate or disciform. Ray (or pistillate) florets more numerous than disc florets, in 2–5+ series (corollas reduced to narrow laminae or to tubes). Disc corollas barely ampliate, lobes erect. Pappi longer than disc florets at flowering. x = 7.
Distribution
North America, nw Mexico, Eurasia.
Discussion
Species 3 (3 in the flora).
A. G. Jones (1989) segregated Brachyactis from Aster in a broad sense. Recent molecular phylogenetic analyses (J. C. Semple et al. 2002) do not support this relationship, species of sect. Conyzopsis clearly belonging in Symphyotrichum.