Difference between revisions of "Clematis columbiana"

(Nuttall) Torrey & A. Gray

Fl. N. Amer. 1: 11. 1838.

Endemic
Basionym: Atragene columbiana Nuttall J. Acad. Nat. Sci. Philadelphia 7: 7. 1834
Treatment appears in FNA Volume 3.
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|name=Atragene columbiana
 
|name=Atragene columbiana
 
|authority=Nuttall
 
|authority=Nuttall
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|rank=species
 
|publication_title=J. Acad. Nat. Sci. Philadelphia
 
|publication_title=J. Acad. Nat. Sci. Philadelphia
 
|publication_place=7: 7. 1834
 
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--><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>viny, climbing or trailing (mainly rhizomatous, not viny in <i></i></i>var.<i><i> tenuiloba</i>). <b>Leaf</b> blade consistently 2-3-ternate; leaflets diverse in shape, thin or ± succulent, usually deeply lobed, margins serrate. <b>Flowers</b>: sepals violet-blue (rarely white in <i></i></i>var.<i><i> columbiana</i>), lance-ovate to ovate.</span><!--
+
--><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>viny, climbing or trailing (mainly rhizomatous, not viny in <i></i>var.<i> tenuiloba</i>). <b>Leaf</b> blade consistently 2-3-ternate; leaflets diverse in shape, thin or ± succulent, usually deeply lobed, margins serrate. <b>Flowers</b>: sepals violet-blue (rarely white in <i></i>var.<i> columbiana</i>), lance-ovate to ovate.</span><!--
  
 
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|discussion=<p>Varieties 2 (2 in the flora).</p><!--
 
|discussion=<p>Varieties 2 (2 in the flora).</p><!--
 
--><p>The name <i>Clematis columbiana</i> was formerly misapplied to <i>C. occidentalis </i>var.<i> grosseserrata</i>; it is still associated with that taxon in some horticultural and popular publications. In such w C.columbiana is usually called C. pseudoalpina.</p><!--
 
--><p>The name <i>Clematis columbiana</i> was formerly misapplied to <i>C. occidentalis </i>var.<i> grosseserrata</i>; it is still associated with that taxon in some horticultural and popular publications. In such w C.columbiana is usually called C. pseudoalpina.</p><!--
--><p>The two varieties of <i>Clematis columbiana</i>, although strikingly dissimilar in their extremes, intergrade extensively. The phenotype of C.columbiana <i></i></i>var.<i><i> tenuiloba</i> may be at least in part a response to habitat; in some areas it grows on exposed summits while <i></i></i>var.<i><i> columbiana</i> occurs nearby at lower elevations. In other areas, however, such as the Killdeer Mountains of North Dakota and the Black Hills of South Dakota and Wyoming, only the tenuiloba extreme is present.</p><!--
+
--><p>The two varieties of <i>Clematis columbiana</i>, although strikingly dissimilar in their extremes, intergrade extensively. The phenotype of C.columbiana <i></i>var.<i> tenuiloba</i> may be at least in part a response to habitat; in some areas it grows on exposed summits while <i></i>var.<i> columbiana</i> occurs nearby at lower elevations. In other areas, however, such as the Killdeer Mountains of North Dakota and the Black Hills of South Dakota and Wyoming, only the tenuiloba extreme is present.</p><!--
 
--><p>The Thompson Indians used plants of <i>Clematis columbiana</i> medicinally in a head wash for scabs and eczema (D. E. Moerman 1986; varieties were not specified).</p>
 
--><p>The Thompson Indians used plants of <i>Clematis columbiana</i> medicinally in a head wash for scabs and eczema (D. E. Moerman 1986; varieties were not specified).</p>
 
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|tables=
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-->{{#Taxon:
 
name=Clematis columbiana
 
name=Clematis columbiana
|author=
 
 
|authority=(Nuttall) Torrey & A. Gray
 
|authority=(Nuttall) Torrey & A. Gray
 
|rank=species
 
|rank=species
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|publication year=1838
 
|publication year=1838
 
|special status=Endemic
 
|special status=Endemic
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V3/V3_194.xml
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V3/V3_194.xml
 
|genus=Clematis
 
|genus=Clematis
 
|subgenus=Clematis subg. Atragene
 
|subgenus=Clematis subg. Atragene

Revision as of 22:25, 16 December 2019

Stems viny, climbing or trailing (mainly rhizomatous, not viny in var. tenuiloba). Leaf blade consistently 2-3-ternate; leaflets diverse in shape, thin or ± succulent, usually deeply lobed, margins serrate. Flowers: sepals violet-blue (rarely white in var. columbiana), lance-ovate to ovate.

Distribution

North America.

Discussion

Varieties 2 (2 in the flora).

The name Clematis columbiana was formerly misapplied to C. occidentalis var. grosseserrata; it is still associated with that taxon in some horticultural and popular publications. In such w C.columbiana is usually called C. pseudoalpina.

The two varieties of Clematis columbiana, although strikingly dissimilar in their extremes, intergrade extensively. The phenotype of C.columbiana var. tenuiloba may be at least in part a response to habitat; in some areas it grows on exposed summits while var. columbiana occurs nearby at lower elevations. In other areas, however, such as the Killdeer Mountains of North Dakota and the Black Hills of South Dakota and Wyoming, only the tenuiloba extreme is present.

The Thompson Indians used plants of Clematis columbiana medicinally in a head wash for scabs and eczema (D. E. Moerman 1986; varieties were not specified).

Selected References

None.

Key

1 Aerial stems elongating, viny, 0.5–1.5(–3.5) m; ultimate divisions of leaves often more than 5 mm wide, thin. Clematis columbiana var. columbiana
1 Aerial stems tufted, not viny, usually less than 0.1 m; ultimate divisions of leaves mostly 1.5–5 mm wide, ± succulent. Clematis columbiana var. tenuiloba