Difference between revisions of "Eriogonum wrightii var. nodosum"

(Small) Reveal

Leafl. W. Bot. 10: 334. 1966.

Common names: Knot-stem bastard-sage
Basionym: Eriogonum nodosum Small Bull. Torrey Bot. Club 25: 49. 1898
Synonyms: Eriogonum pringlei J. M. Coulter & E. M. Fischer Eriogonum trachygonum subsp. pringlei (J. M. Coulter & E. M. Fischer) S. Stokes Eriogonum wrightii subsp. pringlei (J. M. Coulter & E. M. Fischer) S. Stokes Eriogonum wrightii var. pringlei (J. M. Coulter & E. M. Fischer) Reveal
Treatment appears in FNA Volume 5. Treatment on page 291. Mentioned on page 289, 290.
FNA>Volume Importer
imported>Volume Importer
 
Line 69: Line 69:
 
|publication year=1966
 
|publication year=1966
 
|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V5/V5_570.xml
+
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V5/V5_570.xml
 
|subfamily=Polygonaceae subfam. Eriogonoideae
 
|subfamily=Polygonaceae subfam. Eriogonoideae
 
|genus=Eriogonum
 
|genus=Eriogonum

Latest revision as of 22:12, 5 November 2020

Shrubs, 3–10 × (3–)5–15 dm, densely tomentose to lanate. Leaf blades oblanceolate to narrowly elliptic, 0.8–1.2 × 0.25–0.5(–0.9) cm. Inflorescences open; branches slender or stout. Involucres 0.7–2.5 mm. Flowers 1–4 mm; perianth white to pink or rose. Achenes 1–3 mm.


Phenology: Flowering Aug–Feb.
Habitat: Gravelly to rocky soils, mixed grassland, saltbush, creosote bush, and mesquite communities, scattered juniper woodlands
Elevation: 100-1600 m

Distribution

V5 570-distribution-map.gif

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

Discussion

In the strict sense, var. pringlei differs from var. nodosum by its smaller (1–1.5 versus 3–4 mm) flowers, involucres (0.7–2 versus 1.5–2.5 mm), and achenes (1–1.5 versus 2–3 mm); also, the inflorescence branches of var. pringlei are more numerous and much more slender than those of var. nodosum. In the flora area, var. pringlei seems to be restricted to southwestern Arizona (La Paz, Maricopa, Pima, and Pinal counties) and is rare. It occurs also in northwestern Sonora, Mexico, where it is locally common. Variety nodosum is infrequent in California (Imperial, Riverside, San Bernardino, and San Diego counties) and northern Baja California, Mexico; it appears to be the common expression of the species in Yuma County, Arizona, rather than var. pringlei. Until adequate fieldwork is done on this complex, the uncertainty about var. nodosum (s. lat.) must remain. The varietal epithet nodosum has priority over pringlei by virtue of the autonym established by the publication of E. nodosum var. jaegeri Munz & I. M. Johnston.

Selected References

None.

Lower Taxa

None.
James L. Reveal +
(Small) Reveal +
Eriogonum nodosum +
Knot-stem bastard-sage +
Ariz. +, Calif. +, Mexico (Baja California +  and Sonora). +
100-1600 m +
Gravelly to rocky soils, mixed grassland, saltbush, creosote bush, and mesquite communities, scattered juniper woodlands +
Flowering Aug–Feb. +
Leafl. W. Bot. +
Illustrated +
Eriogonum pringlei +, Eriogonum trachygonum subsp. pringlei +, Eriogonum wrightii subsp. pringlei +  and Eriogonum wrightii var. pringlei +
Eriogonum wrightii var. nodosum +
Eriogonum wrightii +
variety +