Difference between revisions of "Symphyotrichum sect. Symphyotrichum"
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|accepted_name=Symphyotrichum sect. Symphyotrichum | |accepted_name=Symphyotrichum sect. Symphyotrichum | ||
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name=Symphyotrichum sect. Symphyotrichum | name=Symphyotrichum sect. Symphyotrichum | ||
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|family=Asteraceae | |family=Asteraceae | ||
|illustrator=Bee F. Gunn | |illustrator=Bee F. Gunn | ||
| + | |illustration copyright=Flora of North America Association | ||
|distribution=North America;Mexico;widely introduced worldwide through ornamental horticulture. | |distribution=North America;Mexico;widely introduced worldwide through ornamental horticulture. | ||
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|tribe=Asteraceae tribe Astereae | |tribe=Asteraceae tribe Astereae | ||
|genus=Symphyotrichum | |genus=Symphyotrichum | ||
Latest revision as of 20:58, 5 November 2020
Perennials; rhizomatous. Stems usually simple, sometimes ± branched. Heads radiate. Ray florets fewer than disc florets, in 1 series (corollas conspicuous). Disc corollas ± ampliate, lobes usually erect, sometimes spreading or reflexed. Pappi shorter than to equaling disc florets at flowering. x = 8.
Distribution
North America, Mexico, widely introduced worldwide through ornamental horticulture.
Discussion
Species 39+ (36 in the flora).
Subsections have been recognized within sect. Symphyotrichum. They are not treated formally here. Subsectional phylogeny is mostly unresolved. Lists of species (from the flora area) within each subsection are provided here as a rough guide to relationships.
Subsection Heterophylli (Nees) Semple: Symphyotrichum cordifolium, S. ciliolatum, S. drummondii, S. anomalum, S. shortii, S. undulatum, S. urophyllum, S. oolentangiense, S. laeve, S. retroflexum.
Subsection Porteriana (Rydberg) G. L. Nesom: Symphyotrichum depauperatum, S. parviceps, S. pilosum, S. porteri, S. priceae.
Subsection Dumosi (Torrey & A. Gray) G. L. Nesom: Symphyotrichum dumosum, S. simmondsii, S. racemosum, S. eulae, S. tradescantii, S. lateriflorum, S. ontarionis, S. lanceolatum, S. praealtum, S. boreale, S. nahanniense, S. welshii.
Subsection Symphyotrichum: Symphyotrichum elliottii, S. puniceum, S. firmum, S. rhiannon, S. prenanthoides, S. novi-belgii, S. anticostense, S. robynsianum.
Undeteremined [often treated as monotypic sect. Turbinelli (Rydberg) Semple]: Symphyotrichum turbinellum.
Selected References
None.