View source for Erigeron strigosus var. strigosus

{{Treatment/ID
|accepted_name=Erigeron strigosus var. strigosus
|accepted_authority=
|publications=
|basionyms={{Treatment/ID/Basionym
|name=Erigeron ramosus
|authority=(Walter) Britton
|rank=species
|publication_title=Sterns &amp; Poggenburg
|publication_place=
}}
|synonyms={{Treatment/ID/Synonym
|name=Erigeron ramosus var. beyrichii
|authority=(Fischer & C. A. Meyer) Torrey & A. Gray
|rank=variety
}} {{Treatment/ID/Synonym
|name=Erigeron strigosus var. beyrichii
|authority=Robbins
|rank=variety
}} {{Treatment/ID/Synonym
|name=Erigeron strigosus var. discoideus
|authority=Cronquist
|rank=variety
}} {{Treatment/ID/Synonym
|name=Erigeron strigosus var. eligulatus
|authority=
|rank=variety
}} {{Treatment/ID/Synonym
|name=Erigeron traversii
|authority=
|rank=species
}} {{Treatment/ID/Synonym
|name=Stenactis beyrichii
|authority=
|rank=species
}}
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Erigeron;Erigeron strigosus;Erigeron strigosus var. strigosus
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Astereae]]</div><div class="higher-taxon"><small>genus</small>[[Erigeron]]</div><div class="higher-taxon"><small>species</small>[[Erigeron strigosus]]</div><div class="higher-taxon"><small>variety</small>[[Erigeron strigosus var. strigosus]]</div></div>
|volume=Volume 20
|mention_page=page 345
|treatment_page=page 346
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Annuals </b>or biennials; rhizomes none. <b>Stems</b> strigose (hairs appressed to ascending, 0.2–0.5 mm). <b>Leaves</b>: basal blades spatulate to narrowly or broadly oblanceolate, 3–15(–20) mm wide, margins usually entire, sometimes dentate, sparsely strigose to strigose-hirsute or hirsutulous. <b>Involucres</b> 2–4 mm, sparsely strigose (hairs terete, 0.1–0.5 mm). <b>2n</b> = 18, 27, 36, 54.</span><!--

-->{{Treatment/Body
|phenology=Flowering (Apr–)May–Oct.
|habitat=Woods edges, fields, roadsides, and other open, disturbed sites
|elevation=0–1500 m
|distribution=Alta.;B.C.;Man.;N.B.;Nfld. and Labr.;N.S.;Ont.;P.E.I.;Que.;Sask.;Ala.;Ark.;Calif.;Colo.;Conn.;Del.;D.C.;Fla.;Ga.;Idaho;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Maine;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;Mont.;Nebr.;N.H.;N.J.;N.Mex.;N.Y.;N.C.;N.Dak.;Ohio;Okla.;Oreg.;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Tex.;Vt.;Va.;Wash.;W.Va.;Wis.;Wyo.
|discussion=<p>Variety beyrichii has often been distinguished by its small heads (involucres 2–3 mm) in relatively diffuse and ‘subnaked’ arrays. Smaller-headed plants of <i>Erigeron strigosus</i> do appear to be common on the coastal plain, as is said of var. beyrichii; they also occur elsewhere, and intergradation with other forms of the species is so prevalent that taxonomic recognition of var. beyrichii seems arbitrary and evolutionarily meaningless. Variation patterns in the <i>E. strigosus</i> complex are currently under study by Richard Noyes and Jim Allison.</p><!--
--><p>Some plants identified here as <i>Erigeron strigosus</i> in east Texas and Lousiana (as well as scattered individuals in various Gulf Coast states) fit Shinners’s concept of E. traversii: they produce red, basally ascending stems and a persistent set of spatulate, dentate basal leaves. The ray florets usually lack pappus bristles; plants with 1 or 2 relatively short bristles or setae on each ray cypselae can be easily found. Plants of E. traversii can be nearly identical in general appearance to <i>E. tenuis</i>, sometimes distinguishable only by the difference in pappi (the pappi of <i>E. strigosus</i> always has a conspicuous ‘outer’ corona-like series, a feature essentially lacking in <i>E. tenuis</i>; in general, <i>E. tenuis</i> also has a stronger tendency for colored ray florets, a more annual root system, and more deeply lobed basal leaves). The character states of E. traversii and <i>E. tenuis</i> that tend to cluster in <i>E. strigosus</i> of Texas and Louisiana also can be observed individually in surrounding states. D. J. Van Vleet (1951) noted that <i>E. tenuis</i>-like plants of <i>E. strigosus</i> flower at the same time (early spring) as <i>E. tenuis</i>, while later-flowering plants of <i>E. strigosus</i> (perhaps of separate races) are less similar to <i>E. tenuis</i>, hypothesizing that hybridization and introgression play a role in shaping the morphology of <i>E. strigosus</i>.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Erigeron strigosus var. strigosus
|authority=
|rank=variety
|parent rank=species
|synonyms=Erigeron ramosus var. beyrichii;Erigeron strigosus var. beyrichii;Erigeron strigosus var. discoideus;Erigeron strigosus var. eligulatus;Erigeron traversii;Stenactis beyrichii
|basionyms=Erigeron ramosus
|family=Asteraceae
|phenology=Flowering (Apr–)May–Oct.
|habitat=Woods edges, fields, roadsides, and other open, disturbed sites
|elevation=0–1500 m
|distribution=Alta.;B.C.;Man.;N.B.;Nfld. and Labr.;N.S.;Ont.;P.E.I.;Que.;Sask.;Ala.;Ark.;Calif.;Colo.;Conn.;Del.;D.C.;Fla.;Ga.;Idaho;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Maine;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;Mont.;Nebr.;N.H.;N.J.;N.Mex.;N.Y.;N.C.;N.Dak.;Ohio;Okla.;Oreg.;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Tex.;Vt.;Va.;Wash.;W.Va.;Wis.;Wyo.
|reference=None
|publication title=
|publication year=
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V19-20-21/V20_798.xml
|tribe=Asteraceae tribe Astereae
|genus=Erigeron
|species=Erigeron strigosus
|variety=Erigeron strigosus var. strigosus
}}<!--

-->[[Category:Treatment]][[Category:Erigeron strigosus]]