Eriogonum elatum var. elatum

Common names: Tall wild buckwheat
Endemic
Treatment appears in FNA Volume 5. Treatment on page 316.

Aerial flowering-stems glabrous. Inflorescence branches glabrous. 2n = 40.


Phenology: Flowering May–Oct.
Habitat: Sandy to gravelly slopes and flats, mixed grassland and sagebrush communities, pinyon, juniper, and conifer woodlands
Elevation: 60-3000 m

Distribution

V5 635-distribution-map.gif

Calif., Idaho, Nev., Oreg., Wash.

Discussion

Variety elatum is found mainly along the eastern edge of the Cascade Ranges in Washington south into northern Oregon, and skips to the Siskiyou/Trinity mountains of southwestern Oregon and northwestern California. To the east in the desert ranges, it is found in south-central Oregon and northeastern California. The third major area of concentration is in the Sierra Nevada of California and east into some of the desert ranges in west-central Nevada. It is found as an isolated disjunct at Lloyd Meadows in Tulare County, and on the Kern Plateau in Kern County, California. An 1876 collection labeled as being from Auburn, Placer County, California (Ames s.n., WIS), is discounted, as that location is doubtful.

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.

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 +
Douglas ex Bentham +
deciduous +  and persistent +
stipelike +
Undefined subg. Eucycla +
papillate +
awn-tipped +  and simple +
15 cm150 mm <br />0.15 m <br /> (25 cm250 mm <br />0.25 m <br />) +
4 cm40 mm <br />0.04 m <br /> (15 cm150 mm <br />0.15 m <br />) +
lanceolate;lanceovate +
1.5 cm15 mm <br />0.015 m <br /> (6 cm60 mm <br />0.06 m <br />) +
not awn-tipped +
0.5 cm5 mm <br />0.005 m <br /> (3 cm30 mm <br />0.03 m <br />) +
glandular +, pubescent +  and glabrous +
triangular +  and scale-like +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
grooved +, branched +  and open +
not brittle +
spreading +  and erect +
villous +  and glabrous +
scabrellous +
ridged +, angled +  and round +
spreading +  and erect +
whorled +, opposite +  and alternate +
Tall wild buckwheat +
Calif. +, Idaho +, Nev. +, Oreg. +  and Wash. +
60-3000 m +
unisexual +, , +  and bisexual +
not attenuate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
hollow +  and solid +
decumbent to erect +  and prostrate +
slender;stout +
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 slopes and flats, mixed grassland and sagebrush communities, pinyon, juniper, and conifer woodlands +
reduced +
capitate +  and subcapitate +
dense +  and diffuse +
15 cm150 mm <br />0.15 m <br /> (50 cm500 mm <br />0.5 m <br />) +
cymelike +, paniclelike +, racemelike +  and spikelike +
10 cm100 mm <br />0.1 m <br /> (30 cm300 mm <br />0.3 m <br />) +
connate +  and free +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
tomentose +  and glabrous +
nonmembranous +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
in whorls +, opposite +, alternate +  and rosulate +
persistent +
bractlike +
glabrate +  and tomentose +
not swollen +
orthotropous +
accrescent +
curved +  and straight +
tomentose;glabrous +
erect to deflexed +
0.5 cm5 mm <br />0.005 m <br /> (4 cm40 mm <br />0.04 m <br />) +
glabrous +, pubescent +  and glandular +
cylindric +  and urceolate +
accrescent +
fleshy +, indurate +  and membranous +
with extrafloral nectaries +  and not articulate +
5 cm50 mm <br />0.05 m <br /> (25 cm250 mm <br />0.25 m <br />) +
Flowering May–Oct. +
homostylous +  and 3-carpellate +
Trans. Linn. Soc. London +
, +  and solid +
slender;stout +
persistent +
0.25 cm2.5 mm <br />0.0025 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 +
chambered +  and solid +
slender +  and stout +
Eriogonum elatum var. elatum +
Eriogonum elatum +
variety +
emarginate +  and entire +
0 +  and 1/2 +
obovate +
coriaceous +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.09 cm0.9 mm <br />9.0e-4 m <br />) +
persistent +
membranous +
pubescent +  and glabrous +
villous +  and glabrous +
synoecious +, monocarpic +, polycarpic +  and , +
3 +, 2 +  and 1 +