Difference between revisions of "Eriogonum nudum var. oblongifolium"

S. Watson

Proc. Amer. Acad. Arts 12: 264. 1877.

Common names: Harford’s wild buckwheat
Endemic
Basionym: Eriogonum affine Bentham in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 14: 13. 1856
Synonyms: Eriogonum capitatum A. Heller Eriogonum harfordii Small Eriogonum latifolium var. affine (Bentham) S. Stokes Eriogonum latifolium var. harfordii (Small) S. Stokes Eriogonum latifolium subsp. sulphureum (Greene) S. Stokes Eriogonum nudum var. sulphureum (Greene) Jepson Eriogonum sulphureum
Treatment appears in FNA Volume 5. Treatment on page 313. Mentioned on page 309, 314, 317.
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|common_names=Harford’s wild buckwheat
 
|common_names=Harford’s wild buckwheat
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|special_status={{Treatment/ID/Special_status
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|code=E
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|label=Endemic
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}}
 
|basionyms={{Treatment/ID/Basionym
 
|basionyms={{Treatment/ID/Basionym
 
|name=Eriogonum affine
 
|name=Eriogonum affine
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|publication title=Proc. Amer. Acad. Arts
 
|publication title=Proc. Amer. Acad. Arts
 
|publication year=1877
 
|publication year=1877
|special status=
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|special status=Endemic
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V5/V5_628.xml
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|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V5/V5_628.xml
 
|subfamily=Polygonaceae subfam. Eriogonoideae
 
|subfamily=Polygonaceae subfam. Eriogonoideae
 
|genus=Eriogonum
 
|genus=Eriogonum

Latest revision as of 22:12, 5 November 2020

Plants 5–10(–18) dm. Flowering stems not fistulose, 2–5(–8) dm, tomentose to floccose. Leaves basal; blade 2–4 × 1.5–2 cm, tomentose abaxially, thinly floccose adaxially, margins plane. Inflorescences cymose, 20–50(–100) × 10–50 cm; branches tomentose to floccose. Involucres 3–6 per cluster, 3–5 mm, tomentose. Flowers 3–4 mm; perianth white to rose or yellow, pubescent. 2n = 40.


Phenology: Flowering May–Oct.
Habitat: Sandy to gravelly slopes and flats, grassland and chaparral communities, oak and montane conifer woodlands
Elevation: 20-1900 m

Discussion

Variety oblongifolium is the widespread and rather common tetraploid phase of the species, being the only expression with pubescent flowering stems. It occurs from southern Oregon south to northern California and western Nevada. The plants vary in flower color. This variety and var. pubiflorum occasionally grow together. In such instances, differentiation between the two based on the presence or absence of tomentum can be arbitrary.

Selected References

None.

Lower Taxa

None.
James L. Reveal +
S. Watson +
Eriogonum affine +
Harford’s wild buckwheat +
Calif. +, Nev. +  and Oreg. +
20-1900 m +
Sandy to gravelly slopes and flats, grassland and chaparral communities, oak and montane conifer woodlands +
Flowering May–Oct. +
Proc. Amer. Acad. Arts +
Illustrated +
Eriogonum capitatum +, Eriogonum harfordii +, Eriogonum latifolium var. affine +, Eriogonum latifolium var. harfordii +, Eriogonum latifolium subsp. sulphureum +, Eriogonum nudum var. sulphureum +  and Eriogonum sulphureum +
Eriogonum nudum var. oblongifolium +
Eriogonum nudum +
variety +