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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--><p>A. G. Jones (1989) segregated Brachyactis from <i>Aster</i> 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 <i>Symphyotrichum</i>.</p> | --><p>A. G. Jones (1989) segregated Brachyactis from <i>Aster</i> 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 <i>Symphyotrichum</i>.</p> | ||
|tables= | |tables= | ||
| − | |references= | + | |references={{Treatment/Reference |
| + | |id=houle1988a | ||
| + | |text=Houle, F. 1988. Étude Biosystématique de la Section Conyzopsis du Genre Aster (Asteraceae). Ph.D. thesis. Université de Montréal. | ||
| + | }} | ||
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|family=Asteraceae | |family=Asteraceae | ||
|distribution=North America;nw Mexico;Eurasia. | |distribution=North America;nw Mexico;Eurasia. | ||
| − | |reference= | + | |reference=houle1988a |
|publication title=Phytologia | |publication title=Phytologia | ||
|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.