Eriogonum luteolum var. luteolum

Common names: Golden carpet wild buckwheat
IllustratedEndemic
Treatment appears in FNA Volume 5. Treatment on page 420. Mentioned on page 421, 422.

Plants erect, (2–) 3–5 (–6) dm, glabrous or occasionally tomentose. Aerial flowering-stems erect, 0.5–1 dm. Leaves basal and cauline; blade oblong-ovate or rounded to cordate. Inflorescences 10–45 cm. Involucres sessile and appressed to branches, cylindric, 3–3.5 mm. Flowers 1.8–2 mm; perianth white to rose or yellow. Achenes 1.8–2 mm. 2n = 24.


Phenology: Flowering Jul–Nov.
Habitat: Sandy to gravelly serpentine flats and slopes, mixed grassland and chaparral communities, oak and pine woodlands
Elevation: 50-1600(-2100) m

Discussion

Variety luteolum is rather common in northern California, where it is seen primarily in the North Coast Ranges and across the northern tier of counties to the northern tip of the Sierra Nevada. It continues northward into southern Oregon. In some places, it can even be abundant or infrequently rather weedy. It is difficult to distinguish from E. gracile in the southern part of its range and from E. vimineum in the northeastern portion. A collection from Crook County, Oregon, (Steward & Steward 6199, KANU, IA, OKLA, PENN, UTC) seems to be this species rather than E. vimineum.

Selected References

None.

Lower Taxa

None.

"narrowing" is not a number."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 +
James L. Reveal +
Greene +
deciduous +  and persistent +
stipelike +  and acute +
Eriogonum sect. Oregonium +
awn-tipped +  and simple +
greenish +  and reddish +
0.5 cm5 mm <br />0.005 m <br /> (3 cm30 mm <br />0.03 m <br />) +
glabrous +, floccose +  and white-tomentose +
rounded;cordate +
0.5 cm5 mm <br />0.005 m <br /> (3 cm30 mm <br />0.03 m <br />) +
not awn-tipped +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
glandular +, pubescent +  and glabrous +
scale-like +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
grooved +, disarticulating +  and dichotomous +
not brittle +
tomentose +  and glabrous +
scabrellous +
ridged +, angled +  and round +
spreading +  and erect +
whorled +, opposite +  and alternate +
Golden carpet wild buckwheat +
Calif. +  and Oreg. +
50-1600(-2100) m +
unisexual +, , +  and bisexual +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
not disarticulating +  and solid +
decumbent to erect +  and prostrate +
not fistulose +
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 serpentine flats and slopes, mixed grassland and chaparral communities, oak and pine woodlands +
open +, uniparous +  and cymose +
capitate +  and subcapitate +
2 cm20 mm <br />0.02 m <br /> (50 cm500 mm <br />0.5 m <br />) +
cymelike +, paniclelike +, racemelike +  and spikelike +
10 cm100 mm <br />0.1 m <br /> (45 cm450 mm <br />0.45 m <br />) +
3 cm30 mm <br />0.03 m <br /> (40 cm400 mm <br />0.4 m <br />) +
connate +  and free +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
floccose +  and glabrous +
0.3 cm3 mm <br />0.003 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
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 +
marcescent +
persistent +
cauline +  and basal +
bractlike +
pubescent +  and glabrous +
lobed +, undulate +, crisped +, crenulate +  and entire +
not swollen +
orthotropous +
accrescent +
erect to deflexed +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
white;rose or yellow +
cylindric +  and urceolate +
accrescent +
fleshy +, indurate +  and membranous +
with extrafloral nectaries +  and not articulate +
0.5 cm5 mm <br />0.005 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Flowering Jul–Nov. +
homostylous +  and 3-carpellate +
, +  and solid +
slender;stout +
persistent +
Illustrated +  and Endemic +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
decumbent to erect +  and prostrate +
erect +, ascending +  and prostrate +
short-pilose +, puberulent +, sericeous +, glabrous +, floccose +, tomentose +  and lanate +
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 vimineum var. luteolum +
chambered +  and solid +
slender +  and stout +
Eriogonum luteolum var. luteolum +
Eriogonum luteolum +
variety +
emarginate +  and entire +
1/4 +  and 1/2 +
obovate +
coriaceous +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
involucral +
persistent +
membranous +
pubescent +  and glabrous +
short-pilose +, puberulent +, sericeous +, floccose +  and tomentose or lanate +
greenish +  and reddish +
annual +, biennial +  and perennial +
tomentose +  and glabrous +
synoecious +, monocarpic +, polycarpic +  and , +
3 +, 2 +  and 1 +