Difference between revisions of "Eriogonum brevicaule var. bannockense"

(S. Stokes) Reveal

Harvard Pap. Bot. 9: 160. 2004.

Common names: Bannock wild buckwheat
Basionym: Eriogonum chrysocephalum subsp. bannockense S. Stokes Leafl. W. Bot. 3: 200. 1943
Synonyms: Eriogonum bannockense (S. Stokes) R. J. Davis
Treatment appears in FNA Volume 5. Treatment on page 267. Mentioned on page 264, 265, 268, 275.
FNA>Volume Importer
FNA>Volume Importer
(No difference)

Revision as of 22:35, 16 December 2019

Plants pulvinate and cespitose, (0.3–)0.5–1.2(–1.5) × 1–2.5 dm. Aerial flowering stems erect, scapelike, 0.3–1.5 dm, tomentose. Leaves: blade narrowly oblanceolate to oblanceolate, (0.8–)1–4(–4.5) × (0.3–)0.4–0.8 cm, densely tomentose abaxially, tomentose to floccose and grayish to greenish adaxially, margins plane (rarely crenulate in Wyoming). Inflorescences capitate, 1–2 cm; branches absent. Involucres 3–6 per cluster, turbinate, 2.5–4 × 2–3 mm, floccose to tomentose. Flowers 2–3 mm; perianth yellow or, rarely, ochrocephalous, glabrous.


Phenology: Flowering Jun–Sep.
Habitat: Sandy or shaley to gravelly flats and slopes, mixed grassland, sagebrush, and mountain mahogany communities, oak-juniper, pinyon-juniper, or montane conifer woodlands
Elevation: 1800-2800 m

Discussion

Variety bannockense is found in widely scattered sites in southeastern Idaho (Bannock, Bear Lake, Bonneville, Cassia, and Franklin counties), northeastern Nevada (Elko County), northwestern Utah (Box Elder and northern Tooele counties) and southwestern Wyoming (Fremont, Lincoln, Sublette, and Teton counties). In habit it is similar to the more western E. desertorum, and a sharp, morphologic distinction is not always obvious between the two. Geographically the two approach each other in Box Elder County, Utah, and in Elko County, Nevada.

Selected References

None.

Lower Taxa

None.
James L. Reveal +
(S. Stokes) Reveal +
Eriogonum chrysocephalum subsp. bannockense +
Bannock wild buckwheat +
Idaho +, Nev. +, Utah +  and Wyo. +
1800-2800 m +
Sandy or shaley to gravelly flats and slopes, mixed grassland, sagebrush, and mountain mahogany communities, oak-juniper, pinyon-juniper, or montane conifer woodlands +
Flowering Jun–Sep. +
Harvard Pap. Bot. +
Illustrated +  and Endemic +
Eriogonum bannockense +
Eriogonum brevicaule var. bannockense +
Eriogonum brevicaule +
variety +