Eriogonum lemmonii

S. Watson

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

Common names: Lemmon’s wild buckwheat
Endemic
Treatment appears in FNA Volume 5. Treatment on page 394. Mentioned on page 382.

Herbs, erect, annual, (0.1–) 1.5–8 (–10) dm, glabrous, green. Stems: caudex absent; aerial flowering-stems erect, occasionally hollow and fistulose, 0.1–3 dm, glabrous. Leaves basal; petiole 2–5 cm, pilose; blade round, 1–3 × 1–3 cm, pilose and bright green on both surfaces, margins plane. Inflorescences narrowly cymose, open, 10–80 × 5–50 cm; branches infrequently fistulose, glabrous; bracts 3, scalelike, 0.5–2 × 0.3–0.8 mm. Peduncles absent or only at proximal node, erect, straight, slender, 0.1–0.5 cm, glabrous. Involucres campanulate, 2–3 × (1.5–) 2–3 mm, sparsely villous; teeth 6–8, erect, 0.5–0.8 mm. Flowers 1.5–2 mm; perianth white or greenish with pink to red midribs, becoming pinkish, glabrous, papillate in fruit; tepals monomorphic, lanceolate; stamens included to exserted, 1–2 mm; filaments glabrous. Achenes dark-brown to black, 3-gonous, 1.3–1.5 mm, glabrous.


Phenology: Flowering May–Jun.
Habitat: Clayey or tuffaceous outcrops, flats, and slopes, saltbush and greasewood communities
Elevation: 1300-1700 m

Discussion

Eriogonum lemmonii is rare and localized, only infrequently being locally occasional. It is restricted to the southwestern edge of the pluvial Lahontan Lake basin of northwestern Nevada. It is found mainly in the Silver Springs and Wadsworth areas of Washoe, Churchill, and Storey counties, with outlying populations at the southern end of the Sahwave Mountains (Pershing County) and in Wilson Canyon (Lyon County). It is on the Nevada “watch list” of narrowly distributed endemic species.

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.

... more about "Eriogonum lemmonii"
dark-brown;black +
included +  and exserted +
3-gonous +
usually red +  and cream or yellow +
oblong +  and ellipsoid or oval +
James L. Reveal +
S. Watson +
deciduous +  and persistent +
stipelike +
Eriogonum sect. Ganysma +
awn-tipped +  and simple +
bright green +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
not awn-tipped +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
glandular +, pubescent +  and glabrous +
scale-like +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
grooved +, disarticulating +  and dichotomous +
not brittle +
scabrellous +
fistulose +
spreading +  and erect +
whorled +, opposite +  and alternate +
Lemmon’s wild buckwheat +
1300-1700 m +
unisexual +, , +  and bisexual +
not attenuate +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
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 +
Clayey or tuffaceous outcrops, flats, and slopes, saltbush and greasewood communities +
open +  and cymose +
capitate +  and subcapitate +
racemose +, paniculate +  and cymose-paniculate +
10 cm100 mm <br />0.1 m <br /> (80 cm800 mm <br />0.8 m <br />) +
cymelike +, paniclelike +, racemelike +  and spikelike +
5 cm50 mm <br />0.05 m <br /> (50 cm500 mm <br />0.5 m <br />) +
connate +  and free +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
campanulate +
nonmembranous +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
in whorls +, opposite +, alternate +  and rosulate +
marcescent +
persistent +
bractlike +
pubescent +  and glabrous +
pink +  and red +
not swollen +
orthotropous +
accrescent +
filiform;capillary +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
pinkish;greenish;white +
cylindric +  and urceolate +
accrescent +
fleshy +, indurate +  and membranous +
with extrafloral nectaries +  and not articulate +
2 cm20 mm <br />0.02 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Flowering May–Jun. +
homostylous +  and 3-carpellate +
Proc. Amer. Acad. Arts +
, +  and solid +
slender;stout +
persistent +
included +  and exserted +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
decumbent to erect +  and prostrate +
spreading +  and erect +
glabrous +, short-hispid +, villous +, hirsute +, floccose +  and tomentose +
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 lemmonii +
Eriogonum subg. Ganysma +
species +
emarginate +  and entire +
1/5 +  and 1/2 +
lanceolate +
coriaceous +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
persistent +
membranous +
pubescent +  and glabrous +
annual +  and perennial +
synoecious +, monocarpic +, polycarpic +  and , +
3 +, 2 +  and 1 +