Difference between revisions of "Eriogonum jamesii"

Bentham

in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 14: 7. 1856.

Common names: Antelope sage
Illustrated
Treatment appears in FNA Volume 5. Treatment on page 367. Mentioned on page 333, 368, 369.
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|accepted_name=Eriogonum jamesii
 
|accepted_name=Eriogonum jamesii
|accepted_authority=Bentham in A. P. de Candolle and A. L. P. P. de Candolle
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|accepted_authority=Bentham
 
|publications={{Treatment/Publication
 
|publications={{Treatment/Publication
 
|title=in A. P. de Candolle and A. L. P. P. de Candolle, Prodr.
 
|title=in A. P. de Candolle and A. L. P. P. de Candolle, Prodr.
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|common_names=Antelope sage
 
|common_names=Antelope sage
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|basionyms=
 
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|distribution=w North America;including Mexico.
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|distribution=Ariz.;Colo.;Kans.;N.Mex.;Okla.;Tex.;including Mexico.
 
|discussion=<p>Varieties 3 (3 in the flora).</p><!--
 
|discussion=<p>Varieties 3 (3 in the flora).</p><!--
 
--><p><i>Eriogonum jamesii</i> is a nectar source for the rare Spalding dotted-blue butterfly (Euphilotes spaldingi).</p><!--
 
--><p><i>Eriogonum jamesii</i> is a nectar source for the rare Spalding dotted-blue butterfly (Euphilotes spaldingi).</p><!--
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name=Eriogonum jamesii
 
name=Eriogonum jamesii
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|authority=Bentham
|authority=Bentham in A. P. de Candolle and A. L. P. P. de Candolle
 
 
|rank=species
 
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|parent rank=subgenus
 
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|family=Polygonaceae
 
|family=Polygonaceae
|distribution=w North America;including Mexico.
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|distribution=Ariz.;Colo.;Kans.;N.Mex.;Okla.;Tex.;including Mexico.
 
|reference=None
 
|reference=None
 
|publication title=in A. P. de Candolle and A. L. P. P. de Candolle, Prodr.
 
|publication title=in A. P. de Candolle and A. L. P. P. de Candolle, Prodr.
 
|publication year=1856
 
|publication year=1856
|special status=
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|special status=Illustrated
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V5/V5_753.xml
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|subfamily=Polygonaceae subfam. Eriogonoideae
 
|subfamily=Polygonaceae subfam. Eriogonoideae
 
|genus=Eriogonum
 
|genus=Eriogonum
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Latest revision as of 17:04, 6 November 2020

Herbs or subshrubs, compact or spreading, matted, 0.5–2.5 × 3–15 dm, tomentose to floccose. Stems: caudex absent or spreading; aerial flowering stems erect, slender, solid, not fistulose, usually arising directly from a taproot, 0.5–1.5 dm, tomentose to floccose. Leaves basal, typically not in rosettes; petiole 0.5–6 cm, tomentose to floccose; blade usually narrowly elliptic, 1–3(–3.5) × (0.3–)0.5–1(–1.2) cm, densely tomentose abaxially, thinly tomentose, floccose or glabrous and grayish to greenish adaxially, margins entire, plane or undulate and crisped. Inflorescences umbellate or compound-umbellate, 10–30 × 10–25 cm; branches tomentose to floccose; bracts 3–9, semileaflike at proximal node, 0.5–2 × 0.2–1 cm, often scalelike distally. Involucres 1 per node, turbinate, 1.5–7 × 2–5 mm, tomentose to floccose; teeth 5–8, erect, 0.1–0.5 mm. Flowers 3–8 mm, including 0.7–2 mm stipelike base; perianth white to cream, densely pubescent abaxially; tepals dimorphic, those of outer whorl lanceolate to elliptic, 2–5 × 1–3 mm, those of inner whorl lanceolate to fan-shaped, 1.5–6 × 2–4 mm; stamens exserted, 2–4 mm; filaments pilose proximally. Achenes light brown to brown, 4–5 mm, glabrous except for sparsely pubescent beak.

Distribution

V5 753-distribution-map.gif

Ariz., Colo., Kans., N.Mex., Okla., Tex., including Mexico.

Discussion

Varieties 3 (3 in the flora).

Eriogonum jamesii is a nectar source for the rare Spalding dotted-blue butterfly (Euphilotes spaldingi).

Eriogonum jamesii and E. arcuatum (see below) are considered “life medicines” and used ceremonially by Native Americans (C. Arnold, pers. comm.; A. B. Reagan 1929; P. A. Vestal 1952).

Selected References

None.

Key

1 Leaf margins undulate, frequently crisped; flowers 3-5(-6) mm; se Arizona, s New Mexico, sw Texas Eriogonum jamesii var. undulatum
1 Leaf margins plane, not crisped; flowers 4-8 mm; e Arizona, c and s Colorado, wc Kansas, New Mexico, w Oklahoma, n and w Texas > 2
2 Inflorescences compound-umbellate; e Arizona, c and s Colorado, New Mexico, w Oklahoma, n and w Texas Eriogonum jamesii var. jamesii
2 Inflorescences simple-umbellate; wc Kansas Eriogonum jamesii var. simplex