Difference between revisions of "Eriogonum thurberi"

Torrey in W. H. Emory

in W. H. Emory, Rep. U.S. Mex. Bound. 2(1): 176. 1859.

Common names: Thurber’s wild buckwheat
Synonyms: Eriogonum cernuum subsp. thurberi (Torrey) S. Stokes Eriogonum cernuum subsp. viscosum S. Stokes
Treatment appears in FNA Volume 5. Treatment on page 403. Mentioned on page 385.
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|name=Eriogonum cernuum subsp. thurberi
 
|name=Eriogonum cernuum subsp. thurberi
 
|authority=(Torrey) S. Stokes
 
|authority=(Torrey) S. Stokes
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|name=Eriogonum cernuum subsp. viscosum
 
|name=Eriogonum cernuum subsp. viscosum
 
|authority=S. Stokes
 
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|elevation=100-1200 m
 
|elevation=100-1200 m
 
|distribution=Ariz.;Calif.;N.Mex.;Mexico (Baja California;Sonora).
 
|distribution=Ariz.;Calif.;N.Mex.;Mexico (Baja California;Sonora).
|discussion=<p>Eriogonum thurberi is common to abundant but rarely weedy in northwestern Mexico, southern California (Inyo, Los Angeles, Orange, Riverside, San Bernardino, and San Diego counties), and southern Arizona (Cochise, Gila, Graham, Maricopa, Mohave, Pima, Pinal, Santa Cruz, and Yavapai counties). It just enters New Mexico (Grant County). It and E. thomasii are the annual members of the E. cernuum complex typically found on the Mojave and Sonoran deserts, with E. thurberi extending farther to the east and E. thomasii farther to the north. The two occasionally grow together.</p>
+
|discussion=<p><i>Eriogonum thurberi</i> is common to abundant but rarely weedy in northwestern Mexico, southern California (Inyo, Los Angeles, Orange, Riverside, San Bernardino, and San Diego counties), and southern Arizona (Cochise, Gila, Graham, Maricopa, Mohave, Pima, Pinal, Santa Cruz, and Yavapai counties). It just enters New Mexico (Grant County). It and <i>E. thomasii</i> are the annual members of the <i>E. cernuum</i> complex typically found on the Mojave and Sonoran deserts, with <i>E. thurberi</i> extending farther to the east and <i>E. thomasii</i> farther to the north. The two occasionally grow together.</p>
 
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|publication year=1859
 
|publication year=1859
 
|special status=
 
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V5/V5_834.xml
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V5/V5_834.xml
 
|subfamily=Polygonaceae subfam. Eriogonoideae
 
|subfamily=Polygonaceae subfam. Eriogonoideae
 
|genus=Eriogonum
 
|genus=Eriogonum

Revision as of 17:41, 18 September 2019

Herbs, spreading, annual, 0.5–4 dm, glabrate, glabrous or sparsely glandular, greenish, grayish, or reddish. Stems: caudex absent; aerial flowering stems erect, solid, not fistulose, 0.3–1 dm, often sparsely tomentose and glandular proximally. Leaves basal; petiole 1–3 cm; blade oblong to narrowly ovate, 0.8–4.5 × 0.5–3 cm, densely white-tomentose abaxially, floccose or glabrous and greenish adaxially, margins often crenulate. Inflorescences cymose, mostly diffuse, 5–30 × 5–50 cm; branches sparsely glandular to glabrate or glabrous; bracts 3, scalelike, 1–2.5 × 1–2.5 mm. Peduncles erect, straight, capillary, 0.5–2.5 cm, glabrous and glandular-puberulent distally. Involucres broadly turbinate, 1.8–2 × 1.8–2 mm, minutely glandular-puberulent; teeth 5, erect, 0.4–0.6 mm. Flowers 1–1.7 mm; perianth white with greenish or reddish midribs, becoming red, glandular-puberulent with a tuft of long white hairs adaxially; tepals dimorphic, those of outer whorl broadly pandurate or flabellate, those of inner whorl oblanceolate; stamens included, 0.7–1.2 mm; filaments mostly glabrous. Achenes brown to black, usually lenticular, 0.6–0.8 mm, glabrous. 2n = 40.


Phenology: Flowering year-round.
Habitat: Sandy flats, washes, and slopes, saltbush, greasewood, and creosote bush communities, oak, pinyon and/or juniper woodlands, (montane conifer woodlands in Mexico)
Elevation: 100-1200 m

Distribution

V5 834-distribution-map.gif

Ariz., Calif., N.Mex., Mexico (Baja California, Sonora).

Discussion

Eriogonum thurberi is common to abundant but rarely weedy in northwestern Mexico, southern California (Inyo, Los Angeles, Orange, Riverside, San Bernardino, and San Diego counties), and southern Arizona (Cochise, Gila, Graham, Maricopa, Mohave, Pima, Pinal, Santa Cruz, and Yavapai counties). It just enters New Mexico (Grant County). It and E. thomasii are the annual members of the E. cernuum complex typically found on the Mojave and Sonoran deserts, with E. thurberi extending farther to the east and E. thomasii farther to the north. The two occasionally grow together.

Selected References

None.

Lower Taxa

None.
... more about "Eriogonum thurberi"
James L. Reveal +
Torrey in W. H. Emory +
Eriogonum sect. Ganysma +
Thurber’s wild buckwheat +
Ariz. +, Calif. +, N.Mex. +, Mexico (Baja California +  and Sonora). +
100-1200 m +
Sandy flats, washes, and slopes, saltbush, greasewood, and creosote bush communities, oak, pinyon and/or juniper woodlands, (montane conifer woodlands in Mexico) +
Flowering year-round. +
in W. H. Emory, Rep. U.S. Mex. Bound. +
Eriogonum cernuum subsp. thurberi +  and Eriogonum cernuum subsp. viscosum +
Eriogonum thurberi +
Eriogonum subg. Ganysma +
species +