Eriogonum douglasii var. meridionale

Reveal

Phytologia 86: 130. 2004.

Common names: Southern wild buckwheat
Treatment appears in FNA Volume 5. Treatment on page 363.

Leaf-blades broadly elliptic to spatulate, densely grayish-lanate on both surfaces. Flowers 4–5 (–6) mm; perianth yellow or ochroleucous to rose-red, densely villous.


Phenology: Flowering Apr–Jun.
Habitat: Sandy to gravelly or rocky flats and slopes, manzanita and sagebrush communities, oak and montane conifer woodlands
Elevation: 1300-2500(-2900) m

Discussion

Variety meridionale is found infrequently in five widely scattered areas. The northernmost is along the Jackson County, Oregon, and Siskiyou County, California, border. In the latter county, the variety is found also in the Marble Mountains area. It is seen occasionally in and near the Warner Mountains of Lake County, Oregon, and Modoc County, California. The plants are much more common along the eastern slope of the northern Sierra Nevada in Lassen County, Nevada, Plumas and Sierra counties, California, and in the Reno area of Washoe County, Nevada. The last and most restricted population is in the Intermountain Region near Pyramid Lake in Washoe County. Variety meridionale occasionally is seen in cultivation and is an ideal addition to any rock garden.

Selected References

None.

Lower Taxa

None.

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light-brown +
included +  and exserted +
3-gonous +
usually red +  and cream or yellow +
oblong +  and ellipsoid or oval +
James L. Reveal +
Reveal +
deciduous +  and persistent +
stipelike +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
awn-tipped +  and simple +
1.5 cm15 mm <br />0.015 m <br /> (1.9 cm19 mm <br />0.019 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
tomentose +  and lanate +
elliptic;spatulate +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
not awn-tipped +
glandular +, pubescent +  and glabrous +
scale-like +
grooved +, disarticulating +  and dichotomous +
not brittle +
tomentose +  and floccose or glabrous +
scabrellous +
spreading +  and erect +
whorled +, opposite +  and alternate +
Southern wild buckwheat +
Calif. +, Nev. +  and Oreg. +
1300-2500(-2900) m +
curved +  and straight +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
unisexual +  and bisexual +
attenuate +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
decumbent to erect +  and prostrate +
0.3 cm3 mm <br />0.003 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
not fistulose +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
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 or rocky flats and slopes, manzanita and sagebrush communities, oak and montane conifer woodlands +
open +, simple +  and compound-umbellate +
cymelike +, paniclelike +, racemelike +  and spikelike +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
connate +  and free +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
turbinate +  and turbinate-campanulate +
nonmembranous +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
grayish-lanate +
broadly elliptic +  and spatulate +
in whorls +, opposite +, alternate +  and rosulate +
persistent +
cauline +  and basal +
bractlike +
pubescent +  and glabrous +
not swollen +
orthotropous +
accrescent +
curved +  and straight +
erect to deflexed +
ochroleucous;rose-red +
cylindric +  and urceolate +
accrescent +
fleshy +, indurate +  and membranous +
with extrafloral nectaries +  and not articulate +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Flowering Apr–Jun. +
homostylous +  and 3-carpellate +
, +  and solid +
slender;stout +
persistent +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
decumbent to erect +  and prostrate +
prostrate +  and erect +
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 caespitosum subsp. douglasii +
chambered +  and solid +
slender +  and stout +
Eriogonum douglasii var. meridionale +
Eriogonum douglasii +
variety +
emarginate +  and entire +
1/4 +  and 1/3 +
obovate +
coriaceous +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
persistent +
membranous +
pubescent +  and glabrous +
sericeous +, lanate +  and tomentose floccose or glabrous +
dioecious +, polygamodioecious +, synoecious +  and polycarpic +
annual +, biennial +  and perennial +
herb +  and matted +
thinly tomentose +  and glabrate +
midlength +
3 +, 2 +  and 1 +