View source for Eupatorium lancifolium

{{Treatment/ID
|accepted_name=Eupatorium lancifolium
|accepted_authority=(Torrey & A. Gray) Small
|publications={{Treatment/Publication
|title=Fl. S.E. U.S.,
|place=1167. 1903
|year=1903
}}
|common_names=Lanceleaf thoroughwort
|basionyms={{Treatment/ID/Basionym
|name=Eupatorium parviflorum var. lancifolium
|authority=Torrey & A. Gray
|publication_title=Fl. N. Amer.
|publication_place=2: 85. 1841
}}
|synonyms={{Treatment/ID/Synonym
|name=Eupatorium semiserratum var. lancifolium
|authority=(Torrey & A. Gray) A. Gray
}}
|hierarchy=Asteraceae;Asteraceae tribe Eupatorieae;Eupatorium;Eupatorium lancifolium
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Eupatorieae]]</div><div class="higher-taxon"><small>genus</small>[[Eupatorium]]</div><div class="higher-taxon"><small>species</small>[[Eupatorium lancifolium]]</div></div>
|volume=Volume 21
|mention_page=page 464, 469, 473
|treatment_page=page 468
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Perennials,</b> 40–100+ cm. <b>Stems</b> (from short rhizomes) single, branched distally, usually glabrous or glabrate, sometimes pilose. <b>Leaves</b> usually opposite (distal sometimes alternate); sessile or subsessile (petioles to 5 mm); blades 3-nerved from bases, lanceolate to lance-linear, 30–50 × 5–13 mm, bases narrowly cuneate, margins serrate, apices acute, faces glabrous adaxially, sparsely pilose abaxially, densely gland-dotted. <b>Heads</b> in corymbiform arrays. <b>Phyllaries</b> 7–10 in 2–3 series, elliptic, 1–4.5 × 0.2–0.8 mm, apices rounded, abaxial faces pilose, gland-dotted. <b>Florets</b> 5; corollas 2.5–3 mm. <b>Cypselae</b> 2.5–2.8 mm; pappi of 30–40 bristles 3.5–4 mm. <b>2n</b> = 20.</span><!--

-->{{Treatment/Body
|phenology=Flowering Aug–Sep.
|habitat=Dry, rolling terrain, clay soils, shade to sun, shortleaf pine and oak woods
|elevation=50–200+ m
|distribution=Ala.;Ark.;La.;Tex.
|discussion=<p><i>Eupatorium lancifolium</i> has been combined with <i>E. semiserratum</i> or listed within it as a subspecies; it differs in its habitat as well as in having leaves that are somewhat smaller, typically a dull blue-green (in contrast to yellow-green in <i>E. semiserratum</i>), and 3-nerved from bases of blades.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Eupatorium lancifolium
|author=
|authority=(Torrey & A. Gray) Small
|rank=species
|parent rank=genus
|synonyms=Eupatorium semiserratum var. lancifolium
|basionyms=Eupatorium parviflorum var. lancifolium
|family=Asteraceae
|phenology=Flowering Aug–Sep.
|habitat=Dry, rolling terrain, clay soils, shade to sun, shortleaf pine and oak woods
|elevation=50–200+ m
|distribution=Ala.;Ark.;La.;Tex.
|reference=None
|publication title=Fl. S.E. U.S.,
|publication year=1903
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V19-20-21/V21_1170.xml
|tribe=Asteraceae tribe Eupatorieae
|genus=Eupatorium
|species=Eupatorium lancifolium
}}<!--

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