Eriogonum longifolium var. longifolium

Common names: Long-leaf wild buckwheat
IllustratedEndemic
Synonyms: Eriogonum longifolium subsp. diffusum S. Stokes Eriogonum longifolium var. lindheimeri Engelmann & A. Gray Eriogonum longifolium var. plantagineum Eriogonum vespinum
Treatment appears in FNA Volume 5. Treatment on page 329. Mentioned on page 330.

Plants 3–20 dm, tomentose to nearly glabrous. Leaves: basal leaf-blade 0.5–20 × 0.3–3 cm, tomentose abaxially, less so to floccose or nearly glabrous adaxially. Peduncles 0.3–3 cm. Involucres turbinate to campanulate, 4–6 × 2.5–6 mm. Flowers 5–11 mm, including 0.5–2.5 mm stipelike base. Achenes 4–6 mm.


Phenology: Flowering May–Oct.
Habitat: Sandy to gravelly, often calcareous flats, slopes, and outcrops, mixed grassland, creosote bush, and mesquite communities, oak and conifer woodlands
Elevation: 60-1100(-1300) m

Distribution

V5 668-distribution-map.gif

Ark., Kans., La., Mo., N.Mex., Okla., Tex.

Discussion

Variety longifolium is widespread and common in the south-central United States. Its roots were used as food by the Kiowa (P. A. Vestal and R. E. Schultes 1939), and an infusion of the roots was taken by the Comanche for stomach trouble (G. G. Carlson and V. H. Jones 1940).

Selected References

None.

Lower Taxa

None.

"/2" 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."dm" is not declared as a valid unit of measurement for this property.

included +  and exserted +
3-gonous +
usually red +  and cream or yellow +
oblong +  and ellipsoid or oval +
James L. Reveal +
Nuttall +
0.5 cm5 mm <br />0.005 m <br /> (20 cm200 mm <br />0.2 m <br />) +
glabrous +, floccose +  and tomentose +
0.3 cm3 mm <br />0.003 m <br /> (3 cm30 mm <br />0.03 m <br />) +
deciduous +  and persistent +
stipelike +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
awn-tipped +  and simple +
2.5 cm25 mm <br />0.025 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (20 cm200 mm <br />0.2 m <br />) +
glabrous +, floccose +  and tomentose +
oblanceolate;oblong +
0.3 cm3 mm <br />0.003 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
not awn-tipped +
glandular +, pubescent +  and glabrous +
triangular +  and scale-like +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
grooved +, not disarticulating +  and dichotomous +
not brittle +
scabrellous +
spreading +  and erect +
whorled +, opposite +  and alternate +
Long-leaf wild buckwheat +
Ark. +, Kans. +, La. +, Mo. +, N.Mex. +, Okla. +  and Tex. +
60-1100(-1300) m +
unisexual +, , +  and bisexual +
attenuate +
0.5 cm5 mm <br />0.005 m <br /> (1.1 cm11 mm <br />0.011 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 +
Sandy to gravelly, often calcareous flats, slopes, and outcrops, mixed grassland, creosote bush, and mesquite communities, oak and conifer woodlands +
open +  and cymose +
capitate +  and subcapitate +
50 cm500 mm <br />0.5 m <br /> (80 cm800 mm <br />0.8 m <br />) +
5 cm50 mm <br />0.05 m <br /> (50 cm500 mm <br />0.5 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 +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
turbinate +  and campanulate +
nonmembranous +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
in whorls +, opposite +, alternate +  and rosulate +
persistent +
cauline +  and basal +
bractlike +
pubescent +  and glabrous +
lobed +, undulate +, crisped +, crenulate +  and entire +
not swollen +
orthotropous +
accrescent +
curved +  and straight +
glabrous;tomentose +
erect to deflexed +
0.3 cm3 mm <br />0.003 m <br /> (3 cm30 mm <br />0.03 m <br />) +
silvery-tomentose +
cylindric +  and urceolate +
accrescent +
fleshy +, indurate +  and membranous +
with extrafloral nectaries +  and not articulate +
5 cm50 mm <br />0.05 m <br /> (20 cm200 mm <br />0.2 m <br />) +
Flowering May–Oct. +
homostylous +  and 3-carpellate +
Trans. Amer. Philos. Soc., n. s. +
, +  and solid +
slender;stout +
persistent +
Illustrated +  and Endemic +
0.17 cm1.7 mm <br />0.0017 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
decumbent to erect +  and prostrate +
tomentose +  and floccose or 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 longifolium subsp. diffusum +, Eriogonum longifolium var. lindheimeri +, Eriogonum longifolium var. plantagineum +  and Eriogonum vespinum +
chambered +  and solid +
slender +  and stout +
Eriogonum longifolium var. longifolium +
Eriogonum longifolium +
variety +
emarginate +  and entire +
1/4 +  and 1/3 +
lanceolate +  and narrowly elliptic +
coriaceous +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
persistent +
membranous +
pubescent +  and glabrous +
glabrous +  and tomentose +
annual +, biennial +  and perennial +
tomentose +  and nearly glabrous +
synoecious +, monocarpic +, polycarpic +  and , +
3 +, 2 +  and 1 +