Eriogonum fasciculatum var. flavoviride

Munz & I. M. Johnston

Bull. Torrey Bot. Club 49: 350. 1923.

Common names: Sonoran Desert California buckwheat
Synonyms: Eriogonum fasciculatum subsp. flavoviride (Munz & I. M. Johnston) S. Stokes
Treatment appears in FNA Volume 5. Treatment on page 299. Mentioned on page 298.

Shrubs or subshrubs, rounded and somewhat compact, 2–5 × 3–6 (–10) dm, thinly floccose or glabrous, yellowish green. Aerial flowering-stems usually glabrous. Leaf-blades linear or linear-oblanceolate, 0.6–1 × 0.05–0.2 cm, thinly tomentose to subglabrous and light green abaxially, subglabrous or glabrous and green adaxially, margins tightly revolute. Inflorescences mostly capitate; branches glabrous. Involucres turbinate-campanulate, 2–3 × 2–3 mm, glabrous or subglabrous. Perianths glabrous or infrequently thinly pubescent. 2n = 40.


Phenology: Flowering year-round.
Habitat: Sandy to gravelly flats and slopes, saltbush and creosote bush communities, pinyon-juniper woodlands
Elevation: 50-1300 m

Distribution

V5 589-distribution-map.gif

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

Discussion

Variety flavoviride is a widespread, infrequent to common, warm-desert shrub found on the Mojave and Sonoran deserts in southern San Bernardino, Riverside and San Diego counties. The yellowish-green hue of the flowering stems, inflorescence branches, and leaves readily distinguish it from var. polifolium, with which it occasionally occurs (especially in Mexico), although this feature is not always obvious on herbarium specimens. Variety flavoviride is much more attractive in the garden than its more frequently planted Mojave Desert counterpart. Reports (e.g., R. S. Felger 2000) of var. fasciculatum along the coast in extreme northwestern Sonora are based on specimens of var. flavoviride.

Selected References

None.

Lower Taxa

None.

"dm" is not declared as a valid unit of measurement for this property."dm" is not declared as a valid unit of measurement for this property."dm" is not declared as a valid unit of measurement for this property."dm" is not declared as a valid unit of measurement for this property.

light-brown;brown +
included +  and exserted +
3-gonous +
usually red +  and cream or yellow +
oblong +  and ellipsoid or oval +
James L. Reveal +
Munz & I. M. Johnston +
deciduous +  and persistent +
stipelike +
Undefined subg. Eucycla +
papillate +
awn-tipped +  and simple +
1.5 cm15 mm <br />0.015 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
green +  and grayish +
0.6 cm6 mm <br />0.006 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
glabrous +, subglabrous +, canescent +  and subglabrous abaxially +
linear;linear-oblanceolate or oblanceolate +
0.05cm;0.4cm +
not awn-tipped +
leaflike +  and semileaflike +
0.3 cm3 mm <br />0.003 m <br /> (1 cm10 mm <br />0.01 m <br />) +
glandular +, pubescent +  and glabrous +
linear +  and oblanceolate +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
not brittle +
spreading +  and erect +
scabrellous +
ridged +, angled +  and round +
whorled +, opposite +  and alternate +
Sonoran Desert California buckwheat +
Calif. +, Mexico (Baja California) +  and Mexico (Sonora) +
50-1300 m +
pubescent +  and subglabrous +
unisexual +, , +  and bisexual +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
decumbent to erect +  and prostrate +
not fistulose +
unwinged +  and winged +
black +, red +, brown +  and yellowish +
exserted +  and included +
pubescent +  and glabrous +
spheroidal +, 4-gonous +, lenticular +, biconvex +, discoid +, 3-gonous +  and 2-gonous +
Sandy to gravelly flats and slopes, saltbush and creosote bush communities, pinyon-juniper woodlands +
reduced +
capitate compact +  and open +
dense +  and diffuse +
connate +  and free +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
subglabrous +  and glabrous +
turbinate-campanulate +
nonmembranous +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
green +  and light green +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
glabrous +, subglabrous +  and thinly tomentose +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
in whorls +, opposite +, alternate +  and rosulate +
persistent +
bractlike +
pubescent +  and glabrous +
lobed +, undulate +, crisped +, crenulate +  and entire +
not swollen +
orthotropous +
accrescent +
curved +  and straight +
erect to deflexed +
pubescent +  and glabrous +
cylindric +  and urceolate +
accrescent +
fleshy +, indurate +  and membranous +
with extrafloral nectaries +  and not articulate +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Flowering year-round. +
homostylous +  and 3-carpellate +
Bull. Torrey Bot. Club +
, +  and solid +
slender;stout +
persistent +
Illustrated +
decumbent to erect +  and prostrate +
spreading +  and erect +
penicillate +, fimbriate +  and capitate +
deciduous +  and persistent +
? (?) +  and ? (?) +
coriaceous +  and membranous +
consisting of a series +  and tubular +
distinct +
erect;spreading or recurved +
Eriogonum fasciculatum subsp. flavoviride +
chambered +  and solid +
Slender (?) +  and Stout (?) +
Eriogonum fasciculatum var. flavoviride +
Eriogonum fasciculatum +
variety +
emarginate +  and entire +
0 +  and 1/2 +
usually elliptic +  and obovate +
coriaceous +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
persistent +
membranous +
pubescent +  and glabrous +
subshrub +  and shrub +
erect;spreading;erect;spreading +
glabrous +  and floccose +
synoecious +, monocarpic +, polycarpic +  and , +
3 +, 2 +  and 1 +