Eriogonum tenellum var. tenellum

Common names: Tall wild buckwheat
Treatment appears in FNA Volume 5. Treatment on page 400.

Plants 1–5 dm. Caudex stems compact. Leaves basal; blade usually elliptic, 0.3–1.5 × 0.3–1 cm. 2n = 40.


Phenology: Flowering May–Nov.
Habitat: Sandy to gravelly flats and slopes, mixed grassland, saltbush, creosote bush, mesquite, and sagebrush communities, oak and conifer woodlands
Elevation: 900-2200 m

Distribution

V5 826-distribution-map.gif

Colo., N.Mex., Okla., Tex., Mexico (Chihuahua), Mexico (Coahuila)

Discussion

Variety tenellum is common and widespread throughout its northern range in southeastern Colorado, New Mexico, western Oklahoma, and northern and western Texas. Outlying populations, extending northward from Mexico, enter the flora area in Dona Ana County, New Mexico, and Webb County, Texas.

Selected References

None.

Lower Taxa

None.

"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 +
Torrey +
deciduous +  and persistent +
stipelike +
Eriogonum sect. Ganysma +
awn-tipped +  and simple +
0.3 cm3 mm <br />0.003 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
white-tomentose +
elliptic;deltoid or ovate +
0.3 cm3 mm <br />0.003 m <br /> (1 cm10 mm <br />0.01 m <br />) +
not awn-tipped +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
glandular +, pubescent +  and glabrous +
scale-like +
0.05 cm0.5 mm <br />5.0e-4 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 +
Tall wild buckwheat +
Colo. +, N.Mex. +, Okla. +, Tex. +, Mexico (Chihuahua) +  and Mexico (Coahuila) +
900-2200 m +
unisexual +, , +  and bisexual +
not attenuate +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
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 flats and slopes, mixed grassland, saltbush, creosote bush, mesquite, and sagebrush communities, oak and conifer woodlands +
open +  and cymose +
capitate +  and subcapitate +
racemose +, paniculate +  and cymose-paniculate +
5 cm50 mm <br />0.05 m <br /> (40 cm400 mm <br />0.4 m <br />) +
erect +  and spreading +
cymelike +, paniclelike +, racemelike +  and spikelike +
5 cm50 mm <br />0.05 m <br /> (40 cm400 mm <br />0.4 m <br />) +
connate +  and free +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
tomentose +  and glabrous +
turbinate +  and turbinate-campanulate +
nonmembranous +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
in whorls +, opposite +, alternate +  and rosulate +
marcescent +
persistent +
bractlike +
pubescent +  and glabrous +
greenish +  and reddish +
not swollen +
orthotropous +
accrescent +
spreading;erect +
erect to deflexed +
filiform;capillary +
0.6 cm6 mm <br />0.006 m <br /> (6 cm60 mm <br />0.06 m <br />) +
orangebrown;red +
cylindric +  and urceolate +
accrescent +
fleshy +, indurate +  and membranous +
with extrafloral nectaries +  and not articulate +
0.4 cm4 mm <br />0.004 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Flowering May–Nov. +
homostylous +  and 3-carpellate +
Ann. Lyceum Nat. Hist. New York +
, +  and solid +
slender;stout +
persistent +
Illustrated +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
decumbent to erect +  and prostrate +
spreading +  and erect +
glabrous +, short-hispid +, villous +, hirsute +, floccose +  and tomentose +
3 cm30 mm <br />0.03 m <br /> (8 cm80 mm <br />0.08 m <br />) +
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 tenellum var. tenellum +
Eriogonum tenellum +
variety +
emarginate +  and entire +
1/5 +  and 1/2 +
lobed +  and laciniate +
coriaceous +
nearly +  and erect +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
persistent +
membranous +
pubescent +  and glabrous +
annual +  and perennial +
glaucous +  and glabrous +
synoecious +, monocarpic +, polycarpic +  and , +
3 +, 2 +  and 1 +