View source for Erigeron subtrinervis

{{Treatment/ID
|accepted_name=Erigeron subtrinervis
|accepted_authority=Rydberg ex Porter & Britton
|publications={{Treatment/Publication
|title=Mem. Torrey Bot. Club
|place=5: 328. 1894
|year=1894
}}
|basionyms={{Treatment/ID/Basionym
|name=Erigeron glabellus var. mollis
|authority=A. Gray
|rank=variety
|publication_title=Proc. Acad. Nat. Sci. Philadelphia
|publication_place=15: 64. 1864,
}}
|synonyms={{Treatment/ID/Synonym
|name=Erigeron speciosus var. mollis
|authority=(A. Gray) S. L. Welsh
|rank=variety
}}
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Erigeron;Erigeron subtrinervis
|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 subtrinervis]]</div></div>
|volume=Volume 20
|mention_page=page 269, 331
|treatment_page=page 330
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Perennials,</b> 15–90 cm; rhizomatous to subrhizomatous, fibrous-rooted, caudices usually branched, woody, thick. <b>Stems</b> erect, moderately to densely hirsute (hairs 0.5–0.8 mm), eglandular. <b>Leaves</b> basal (usually withering by flowering) and cauline; basal blades oblanceolate-spatulate, 30–80 × 6–20(–27) mm, margins entire, faces evenly hirsute to strigoso-hirsute, usually eglandular; cauline blades lanceolate to oblong, oblong-ovate, or broadly ovate, nearly even-sized distally or sometimes mid largest (continuing to immediately proximal to heads, bases clasping to subclasping). <b>Heads</b> 1–6(–21) in corymbiform arrays. <b>Involucres</b> 6–9 × 13–20 mm. <b>Phyllaries</b> in 2–3(–4) series, moderately to densely hirsute, minutely glandular. <b>Ray</b> florets 100–150; corollas blue to lavender, 7–18 mm (ca. 1 mm wide), laminae coiling at tips. <b>Disc</b> corollas 4–5 mm. <b>Cypselae</b> 1.6–2 mm, 2(–4)-nerved, faces sparsely strigose; pappi: outer of setae, inner of 20–30 bristles.</span><!--

-->{{Treatment/Body
|phenology=Flowering (Jun–)Jul–Sep.
|habitat=Opening and margins, roadsides, often shaded, ponderosa pine, pine-fir, mixed conifer, aspen
|elevation=1800–3000(–3500) m
|distribution=Colo.;Idaho;Mont.;Nebr.;N.Mex.;N.Dak.;S.Dak.;Utah;Wyo.
|discussion=<p><i>Erigeron subtrinervis</i> is variable in vestiture, perhaps reflecting gene exchange with <i>E. speciosus</i>. <i>Erigeron speciosus</i> <i></i>var.<i> mollis</i> (A. Gray) S. L. Welsh may be a recurrent hybrid; it is identified here within <i>E. subtrinervis</i>.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Erigeron subtrinervis
|authority=Rydberg ex Porter & Britton
|rank=species
|parent rank=genus
|synonyms=Erigeron speciosus var. mollis
|basionyms=Erigeron glabellus var. mollis
|family=Asteraceae
|phenology=Flowering (Jun–)Jul–Sep.
|habitat=Opening and margins, roadsides, often shaded, ponderosa pine, pine-fir, mixed conifer, aspen
|elevation=1800–3000(–3500) m
|distribution=Colo.;Idaho;Mont.;Nebr.;N.Mex.;N.Dak.;S.Dak.;Utah;Wyo.
|reference=None
|publication title=Mem. Torrey Bot. Club
|publication year=1894
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V19-20-21/V20_750.xml
|tribe=Asteraceae tribe Astereae
|genus=Erigeron
|species=Erigeron subtrinervis
}}<!--

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