Eriogonum brevicaule var. brevicaule

Common names: Short-stem wild buckwheat
IllustratedEndemic
Synonyms: Eriogonum brevicaule subsp. grangerense (M. E. Jones) S. Stokes Eriogonum brevicaule var. wasatchense Eriogonum campanulatum M. E. Jones Eriogonum grangerense Eriogonum wasatchense
Treatment appears in FNA Volume 5. Treatment on page 265. Mentioned on page 264, 268, 270.

Plants erect, (0.8–) 1.5–4 (–5) × 2–5 (–8) dm. Aerial flowering-stems erect, 1–2.5 dm, glabrous. Leaves: blade linear to oblanceolate, 3–10 × 0.1–0.7 cm, tomentose abaxially, less so to thinly floccose and green adaxially, margins plane. Inflorescences cymose, usually divided 3 or more times, (3–) 5–25 cm; branches glabrous. Involucres 1 per node, turbinate to turbinate-campanulate, 2–4 × (1–) 1.5–2.5 (–3) mm, glabrous. Flowers (2–) 2.5–3 mm; perianth yellow, rarely white or cream, glabrous.


Phenology: Flowering Jun–Sep.
Habitat: Sandy to clayey flats, washes and slopes, mixed grassland and sagebrush communities, juniper or montane conifer woodlands
Elevation: 1400-3000 m

Distribution

V5 500-distribution-map.gif

Colo., Idaho, Nebr., S.Dak., Utah, Wyo.

Discussion

Variety brevicaule is widely scattered in northwestern and north-central Colorado, southeastern Idaho, western Nebraska, southwestern South Dakota, northern Utah, and Wyoming. Plants with white or cream-colored perianths occur in southwestern Wyoming and have been called var. grangerense. Hybrids involving var. brevicaule and E. corymbosum var. corymbosum are known from southwestern Wyoming.

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."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 +
Nuttall +
deciduous +  and persistent +
stipelike +
Undefined subg. Eucycla +
roughened +  and papillate +
awn-tipped +  and simple +
10 cm100 mm <br />0.1 m <br /> (12 cm120 mm <br />0.12 m <br />) +
0.9 cm9 mm <br />0.009 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
3 cm30 mm <br />0.03 m <br /> (10 cm100 mm <br />0.1 m <br />) +
linear;oblanceolate +
0.1cm;0.7cm +
not awn-tipped +
leaflike +  and semileaflike +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
glandular +, pubescent +  and glabrous +
scale-like +  and triangular +
not brittle +
spreading +  and erect +
scabrellous +
ridged +, angled +  and round +
whorled +, opposite +  and alternate +
Short-stem wild buckwheat +
Colo. +, Idaho +, Nebr. +, S.Dak. +, Utah +  and Wyo. +
1400-3000 m +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
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 clayey flats, washes and slopes, mixed grassland and sagebrush communities, juniper or montane conifer woodlands +
reduced +
capitate +  and subcapitate +
10 cm100 mm <br />0.1 m <br /> (25 cm250 mm <br />0.25 m <br />) +
3 cm30 mm <br />0.03 m <br /> (5 cm50 mm <br />0.05 m <br />) +
10 cm100 mm <br />0.1 m <br /> (15 cm150 mm <br />0.15 m <br />) +
dense +  and diffuse +
5 cm50 mm <br />0.05 m <br /> (25 cm250 mm <br />0.25 m <br />) +
connate +  and free +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
turbinate +  and turbinate-campanulate +
nonmembranous +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
in whorls +, opposite +, alternate +  and rosulate +
7 cm70 mm <br />0.07 m <br /> (15 cm150 mm <br />0.15 m <br />) +
persistent +
1 cm10 mm <br />0.01 m <br /> (7 cm70 mm <br />0.07 m <br />) +
bractlike +
not swollen +
orthotropous +
accrescent +
curved +  and straight +
tomentose;floccose or glabrous +
erect to deflexed +
0.3 cm3 mm <br />0.003 m <br /> (3 cm30 mm <br />0.03 m <br />) +
cylindric +  and urceolate +
accrescent +
fleshy +, indurate +  and membranous +
with extrafloral nectaries +  and not articulate +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
tomentose +  and floccose +
0.2 cm2 mm <br />0.002 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Flowering Jun–Sep. +
homostylous +  and 3-carpellate +
Proc. Acad. Nat. Sci. Philadelphia +
, +  and solid +
slender;stout +
persistent +
Illustrated +  and Endemic +
decumbent to erect +  and prostrate +
penicillate +, fimbriate +  and capitate +
deciduous +  and persistent +
? (?) +  and ? (?) +
coriaceous +  and membranous +
consisting of a series +  and tubular +
distinct +
erect;spreading or recurved +
Eriogonum brevicaule subsp. grangerense +, Eriogonum brevicaule var. wasatchense +, Eriogonum campanulatum +, Eriogonum grangerense +  and Eriogonum wasatchense +
chambered +  and solid +
Slender (?) +  and Stout (?) +
Eriogonum brevicaule var. brevicaule +
Eriogonum brevicaule +
variety +
emarginate +  and entire +
0 +  and 1/2 +
1/4 +  and 1/3 +
oblong +  and obovate or ovate +
coriaceous +
erect +  and spreading +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
persistent +
membranous +
pubescent +  and glabrous +
greenish +  and green +
tomentose +  and floccose or glabrous +
synoecious +, monocarpic +, polycarpic +  and , +
3 +, 2 +  and 1 +