Eriogonum leptocladon var. ramosissimum

(Eastwood) Reveal

Proc. Utah Acad. Sci. 42: 289. 1966.

Common names: San Juan wild buckwheat
Endemic
Basionym: Eriogonum ramosissimum Eastwood Proc. Calif. Acad. Sci., ser. 2, 6: 322. 1896
Synonyms: Eriogonum effusum subsp. pallidum (Small) S. Stokes
Treatment appears in FNA Volume 5. Treatment on page 249. Mentioned on page 248.
Revision as of 09:30, 30 July 2020 by imported>Volume Importer
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Plants 2–8 × 5–15 dm. Aerial flowering-stems white-tomentose to floccose. Leaves: blade linear-lanceolate to narrowly oblong, 1.5–3.5 × (0.2–) 0.3–1 cm, margins plane or infrequently revolute. Inflorescence branches tomentose, rarely floccose. Perianths white.


Phenology: Flowering Jun–Oct.
Habitat: White or infrequently red blow sand on flats, washes and slopes, mixed grassland, saltbush, ephedra, and sagebrush communities, pinyon-juniper woodlands
Elevation: 1200-2100 m

Distribution

V5 463-distribution-map.gif

Ariz., Colo., N.Mex., Utah.

Discussion

Variety ramosissimum is the more common of the expressions in the species. It occurs in Emery, Garfield, San Juan, and Wayne counties in Utah, and in Montezuma County, Colorado. It is common in Apache, western Coconino, and Navajo counties, Arizona, and in San Juan County, New Mexico.

Selected References

None.

Lower Taxa

None.

"/2" 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 +
included +  and exserted +
3-gonous +
usually red +  and cream or yellow +
oblong +  and ellipsoid or oval +
acute;obtuse or rounded +
James L. Reveal +
(Eastwood) Reveal +
deciduous +  and persistent +
stipelike +
Eriogonum ramosissimum +
papillate +
awn-tipped +  and simple +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
white-tomentose +
linear-lanceolate;narrowly oblong +
0.3 cm3 mm <br />0.003 m <br /> (1 cm10 mm <br />0.01 m <br />) +
not awn-tipped +
leaflike +  and semileaflike +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
glandular +, pubescent +  and glabrous +
linear +  and triangular +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
not brittle +
spreading +  and erect +
glabrous +, tomentose +  and floccose or glabrate +
scabrellous +
ridged +, angled +  and round +
whorled +, opposite +  and alternate +
San Juan wild buckwheat +
Ariz. +, Colo. +, N.Mex. +  and Utah. +
1200-2100 m +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
unisexual +, , +  and bisexual +
not attenuate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.35 cm3.5 mm <br />0.0035 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 +
White or infrequently red blow sand on flats, washes and slopes, mixed grassland, saltbush, ephedra, and sagebrush communities, pinyon-juniper woodlands +
reduced +
open +  and cymose +
capitate +  and subcapitate +
floccose +  and tomentose +
dense +  and diffuse +
5 cm50 mm <br />0.05 m <br /> (40 cm400 mm <br />0.4 m <br />) +
cymelike +, paniclelike +, racemelike +  and spikelike +
10 cm100 mm <br />0.1 m <br /> (50 cm500 mm <br />0.5 m <br />) +
connate +  and free +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
tomentose +  and floccose or glabrous +
turbinate +  and turbinate-campanulate +
nonmembranous +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
in whorls +, opposite +, alternate +  and rosulate +
persistent +
bractlike +
pubescent +  and glabrous +
revolute +  and plane +
not swollen +
orthotropous +
accrescent +
curved +  and straight +
erect to deflexed +
cylindric +  and urceolate +
accrescent +
fleshy +, indurate +  and membranous +
with extrafloral nectaries +  and not articulate +
tomentose +  and floccose +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Flowering Jun–Oct. +
homostylous +  and 3-carpellate +
Proc. Utah Acad. Sci. +
, +  and solid +
slender;stout +
persistent +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
decumbent to erect +  and prostrate +
glandular +, pubescent +  and glabrous +
penicillate +, fimbriate +  and capitate +
deciduous +  and persistent +
2-lobed +  and cylindric +
coriaceous +  and membranous +
consisting of a series +  and tubular +
distinct +
erect;spreading or recurved +
spreading;erect +
Eriogonum effusum subsp. pallidum +
chambered +  and solid +
slender +  and stout +
Eriogonum leptocladon var. ramosissimum +
Eriogonum leptocladon +
variety +
emarginate +  and entire +
0 +  and 1/2 +
1/4 +  and 1/3 +
oblong +  and broadly obovate +
coriaceous +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
persistent +
membranous +
pubescent +  and glabrous +
glabrous +, white-tomentose +  and floccose +
synoecious +, monocarpic +, polycarpic +  and , +
3 +, 2 +  and 1 +