View source for Erigeron philadelphicus

{{Treatment/ID
|accepted_name=Erigeron philadelphicus
|accepted_authority=Linnaeus
|publications={{Treatment/Publication
|title=Sp. Pl.
|place=2: 863. 1753
|year=1753
}}
|common_names=Philadelphia fleabane;vergerette de Philadelphie
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}{{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Erigeron;Erigeron philadelphicus
|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 philadelphicus]]</div></div>
|volume=Volume 20
|mention_page=page 263, 320
|treatment_page=page 319
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Annuals,</b> biennials, or short-lived perennials, 4–80 cm; fibrous-rooted, caudices simple. <b>Stems</b> erect (green proximally, leafy to arrays), hirsuto-villous to villous proximally, loosely strigose to sparsely hirsute distally, minutely glandular. <b>Leaves</b> basal (persistent or withering by flowering) and cauline; basal blades oblanceolate to obovate, (15–)30–110(–150) × 10–25(–40) mm, margins shallowly crenate to coarsely serrate or pinnately lobed, faces sparsely hirsute to villous, eglandular; cauline blades oblong-oblanceolate to lanceolate, gradually reduced distally (bases clasping to auriculate-clasping). <b>Heads</b> (1–)3–35 usually in corymbiform arrays (ultimate branches arising near stem tips). <b>Involucres</b> 4–6 × 6–15 mm. <b>Phyllaries</b> in 2–3 series (sometimes basally connate), hirsuto-villous to sparsely hirsute or glabrous, sometimes minutely glandular. <b>Ray</b> florets 150–250(–400); corollas usually white, sometimes pinkish, 5–10 mm, laminae not coiling or tardily coiling. <b>Disc</b> corollas 2.1–3.2 mm. <b>Cypselae</b> 0.6–1.1 mm, 2-nerved, faces sparsely strigose; pappi: outer of setae, inner of 15–20(–30) bristles.</span><!--

-->{{Treatment/Body
|distribution=Alta.;B.C.;Man.;N.B.;N.S.;N.W.T.;Nfld. and Labr. (Nfld.);Ont.;P.E.I.;Que.;Sask.;Yukon;Ala.;Ark.;Calif.;Colo.;Conn.;D.C.;Del.;Fla.;Ga.;Idaho;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Maine;Mass.;Md.;Mich.;Minn.;Miss.;Mo.;Mont.;N.C.;N.Dak.;N.H.;N.J.;N.Mex.;N.Y.;Nebr.;Nev.;Ohio;Okla.;Oreg.;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Tex.;Va.;Vt.;W.Va.;Wash.;Wis.;Wyo.;introduced worldwide in temperate areas as a weed.
|discussion=<p>Varieties 3 (3 in the flora).</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Cauline leaf faces sparsely hirsute to villous
|[[Erigeron philadelphicus var. philadelphicus|Erigeron philadelphicus var. philadelphicus]]
|-id=key-0-1
|1
|Cauline leaf faces glabrous or glabrate
|[[#key-0-2| > 2]]
|-id=key-0-2
|2
|Leaves of basal rosettes withering by flowering; salt marshes, British Columbia
|[[Erigeron philadelphicus var. glaber|Erigeron philadelphicus var. glaber]]
|-id=key-0-2
|2
|Leaves of basal rosettes persistent through flowering; crevices in shale or dolomite, usually beside rivers or lakes, Ontario, Quebec, New York, and Vermont
|[[Erigeron philadelphicus var. provancheri|Erigeron philadelphicus var. provancheri]]
|}
</div></div><!--

-->{{#Taxon:
name=Erigeron philadelphicus
|authority=Linnaeus
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Asteraceae
|distribution=Alta.;B.C.;Man.;N.B.;N.S.;N.W.T.;Nfld. and Labr. (Nfld.);Ont.;P.E.I.;Que.;Sask.;Yukon;Ala.;Ark.;Calif.;Colo.;Conn.;D.C.;Del.;Fla.;Ga.;Idaho;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Maine;Mass.;Md.;Mich.;Minn.;Miss.;Mo.;Mont.;N.C.;N.Dak.;N.H.;N.J.;N.Mex.;N.Y.;Nebr.;Nev.;Ohio;Okla.;Oreg.;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Tex.;Va.;Vt.;W.Va.;Wash.;Wis.;Wyo.;introduced worldwide in temperate areas as a weed.
|reference=None
|publication title=Sp. Pl.
|publication year=1753
|special status=Illustrated;Endemic
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V20_715.xml
|tribe=Asteraceae tribe Astereae
|genus=Erigeron
|species=Erigeron philadelphicus
}}<!--

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[[Category:Treatment]]
[[Category:Erigeron]]
[[Category:Revised Since Print]]