Eriogonum mohavense

S. Watson

Proc. Amer. Acad. Arts 12: 266. 1877.

Common names: Western Mojave wild buckwheat
IllustratedEndemicConservation concern
Treatment appears in FNA Volume 5. Treatment on page 416. Mentioned on page 414.
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Herbs, erect to spreading, 1–3 dm, glabrous, greenish to yellowish green. Stems: aerial flowering-stems erect, 0.2–1 dm, glabrous. Leaves basal; petiole 1–4 cm, tomentose; blade oblong to rounded, (0.4–) 0.6–2 × (0.4–) 0.6–2 cm, white-tomentose and grayish on both surfaces, or slightly less so adaxially. Inflorescences cymose, diffuse, spreading, 5–25 × 5–20 cm; branches glabrous; bracts 0.5–1.5 × 1–2 mm. Peduncles absent. Involucres terminal at tips of slender branchlets at least proximally, not appressed to branches, turbinate, 1.7–2 × 1–1.5 mm, glabrous; teeth 5, erect, 0.5–0.9 mm. Flowers 0.7–1 mm; perianth yellow, glabrous, infrequently glandular proximally; tepals monomorphic, narrowly oblong to elliptic; stamens included to slightly exserted, 0.8–1.2 mm; filaments pilose proximally. Achenes dark-brown to nearly black, lenticular, 1–1.2 mm.


Phenology: Flowering May–Sep.
Habitat: Sandy to infrequently clayey flats and slopes, saltbush and creosote bush communities
Elevation: 600-1200 m

Discussion

Of conservation concern.

Eriogonum mohavense is typically local and infrequent, and only rarely locally common. It is restricted to the northwestern corner of the Mojave Desert in southeastern Kern, northeastern Los Angeles, and northwestern San Bernardino counties. It occurs also just inside Inyo County. An 1882 C. C. Parry collection (NY) supposedly from San Diego is discounted as to location.

Selected References

None.

Lower Taxa

None.

"narrowing" is not a number."dm" is not declared as a valid unit of measurement for this property.

... more about "Eriogonum mohavense"
dark-brown;nearly black +
included +  and exserted +
lenticular +
usually red +  and cream or yellow +
oblong +  and ellipsoid or oval +
James L. Reveal +
S. Watson +
deciduous +  and persistent +
stipelike +  and acute +
Eriogonum sect. Oregonium +
awn-tipped +  and simple +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (2 cm20 mm <br />0.02 m <br />) +
white-tomentose +
oblong;rounded +
0.6 cm6 mm <br />0.006 m <br /> (2 cm20 mm <br />0.02 m <br />) +
not awn-tipped +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 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 +
scabrellous +
ridged +, angled +  and round +
spreading +  and erect +
whorled +, opposite +  and alternate +
Western Mojave wild buckwheat +
600-1200 m +
unisexual +, , +  and bisexual +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.1 cm1 mm <br />0.001 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 infrequently clayey flats and slopes, saltbush and creosote bush communities +
capitate +  and subcapitate +
5 cm50 mm <br />0.05 m <br /> (25 cm250 mm <br />0.25 m <br />) +
cymelike +, paniclelike +, racemelike +  and spikelike +
5 cm50 mm <br />0.05 m <br /> (20 cm200 mm <br />0.2 m <br />) +
connate +  and free +
0.17 cm1.7 mm <br />0.0017 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
nonmembranous +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
in whorls +, opposite +, alternate +  and rosulate +
marcescent +
persistent +
bractlike +
pubescent +  and glabrous +
lobed +, undulate +, crisped +, crenulate +  and entire +
not swollen +
orthotropous +
accrescent +
erect to deflexed +
cylindric +  and urceolate +
accrescent +
fleshy +, indurate +  and membranous +
with extrafloral nectaries +  and not articulate +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Flowering May–Sep. +
homostylous +  and 3-carpellate +
Proc. Amer. Acad. Arts +
, +  and solid +
slender;stout +
persistent +
Illustrated +, Endemic +  and Conservation concern +
included +  and slightly exserted +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 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 +
chambered +  and solid +
slender +  and stout +
Eriogonum mohavense +
Eriogonum subg. Oregonium +
species +
emarginate +  and entire +
1/4 +  and 1/2 +
narrowly oblong +  and elliptic +
coriaceous +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.09 cm0.9 mm <br />9.0e-4 m <br />) +
involucral +
persistent +
membranous +
pubescent +  and glabrous +
short-pilose +, puberulent +, sericeous +, floccose +  and tomentose or lanate +
greenish +  and yellowish green +
annual +, biennial +  and perennial +
synoecious +, monocarpic +, polycarpic +  and , +
3 +, 2 +  and 1 +