Difference between revisions of "Eupatorium lancifolium"
Fl. S.E. U.S., 1167. 1903.
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|name=Eupatorium parviflorum var. lancifolium | |name=Eupatorium parviflorum var. lancifolium | ||
|authority=Torrey & A. Gray | |authority=Torrey & A. Gray | ||
| + | |rank=variety | ||
|publication_title=Fl. N. Amer. | |publication_title=Fl. N. Amer. | ||
|publication_place=2: 85. 1841 | |publication_place=2: 85. 1841 | ||
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|name=Eupatorium semiserratum var. lancifolium | |name=Eupatorium semiserratum var. lancifolium | ||
|authority=(Torrey & A. Gray) A. Gray | |authority=(Torrey & A. Gray) A. Gray | ||
| + | |rank=variety | ||
}} | }} | ||
|hierarchy=Asteraceae;Asteraceae tribe Eupatorieae;Eupatorium;Eupatorium lancifolium | |hierarchy=Asteraceae;Asteraceae tribe Eupatorieae;Eupatorium;Eupatorium lancifolium | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Eupatorium lancifolium | name=Eupatorium lancifolium | ||
| − | |||
|authority=(Torrey & A. Gray) Small | |authority=(Torrey & A. Gray) Small | ||
|rank=species | |rank=species | ||
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|publication year=1903 | |publication year=1903 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V19-20-21/V21_1170.xml |
|tribe=Asteraceae tribe Eupatorieae | |tribe=Asteraceae tribe Eupatorieae | ||
|genus=Eupatorium | |genus=Eupatorium | ||
Revision as of 19:33, 16 December 2019
Perennials, 40–100+ cm. Stems (from short rhizomes) single, branched distally, usually glabrous or glabrate, sometimes pilose. Leaves 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. Heads in corymbiform arrays. Phyllaries 7–10 in 2–3 series, elliptic, 1–4.5 × 0.2–0.8 mm, apices rounded, abaxial faces pilose, gland-dotted. Florets 5; corollas 2.5–3 mm. Cypselae 2.5–2.8 mm; pappi of 30–40 bristles 3.5–4 mm. 2n = 20.
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
Eupatorium lancifolium has been combined with E. semiserratum 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 E. semiserratum), and 3-nerved from bases of blades.
Selected References
None.