Difference between revisions of "Eriogonum deflexum var. deflexum"

unknown
Common names: Flat-topped skeleton weed
Synonyms: Eriogonum deflexum var. turbinatum RevealEriogonum deflexum subsp. insigne (S. Watson) S. StokesEriogonum deflexum var. rectum unknownEriogonum insigne unknown
Treatment appears in FNA Volume 5. Treatment on page 395. Mentioned on page 398.
FNA>Volume Importer
(No difference)

Revision as of 21:29, 26 July 2019

Plants (0.5–)1–5(–20) dm. Flowering stems not fistulose. Inflorescences flat-topped, spreading, hemispheric, rarely narrowly erect and strict with whiplike branches. Peduncles absent or deflexed, rarely some ± erect distally, (0.1–)0.2–0.5 cm. Involucres turbinate, 1.5–2.5 mm. Flowers 1–2 mm; outer tepals cordate to ovate. 2n = 40.


Phenology: Flowering year-round.
Habitat: Sandy to gravelly washes, flats, and slopes, saltbush, creosote bush, greasewood, blackbrush, sagebrush, and mesquite communities, pinyon-juniper woodlands
Elevation: -50-1900(-2000) m

Distribution

V5 811-distribution-map.gif

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

Discussion

Variety deflexum is widespread and variable, found mainly in the Mojave and Sonoran deserts of southeastern California, southern Nevada, Arizona, and New Mexico, southward into northern Baja California Norte and northwestern Sonora, Mexico. Plants in southern Arizona tend to have slightly longer peduncles (3–5 mm) and involucres (2–2.5 mm) than do those to the north and west (peduncles 0.1–3 mm, involucres 1.5–2 mm); the former have been recognized as var. turbinatum. Variety deflexum occurs also in the colder Great Basin desert in southwestern Utah, where a sharp distinction between it and var. nevadense is not always possible.

Selected References

None.

Lower Taxa

None.
James L. Reveal +
unknown +
Eriogonum sect. Ganysma +
Flat-topped skeleton weed +
Ariz. +, Calif. +, Nev. +, N.Mex. +, Utah +, Mexico (Baja California +  and Sonora). +
-50-1900(-2000) m +
Sandy to gravelly washes, flats, and slopes, saltbush, creosote bush, greasewood, blackbrush, sagebrush, and mesquite communities, pinyon-juniper woodlands +
Flowering year-round. +
in J. C. Ives, Rep. Colorado R. +
Illustrated +
Eriogonum deflexum var. turbinatum +, Eriogonum deflexum subsp. insigne +, Eriogonum deflexum var. rectum +  and Eriogonum insigne +
Eriogonum deflexum var. deflexum +
Eriogonum deflexum +
variety +