Eriogonum lancifolium

Reveal & Brotherson

Great Basin Naturalist 27: 187, fig. 1. 1968.

Common names: Lance-leaf wild buckwheat
EndemicConservation concern
Synonyms: Eriogonum corymbosum var. davidsei Reveal
Treatment appears in FNA Volume 5. Treatment on page 259. Mentioned on page 232.

Shrubs, spreading, not scapose, 3.5–8 (–10) × 5–10 (–13) dm, grayish-tomentose, grayish. Stems spreading, usually without persistent leaf-bases, sheathing up to 1/2 or more height of plant; caudex stems absent; aerial flowering-stems erect to spreading, slender, solid, not fistulose, 0.5–1.2 dm, tomentose. Leaves cauline, 1 per node; petiole 0.3–0.6 cm, tomentose; blade lanceolate to elliptic, 3–5 × 0.5–2 cm, densely silvery-tomentose on both surfaces or rarely less so to subglabrous and greenish abaxially, margins plane or slightly revolute, sometimes crenulate. Inflorescences cymose, often compact, (3–) 6–14 × 3–10 dm; branches dichtomous, tomentose to subglabrous; bracts 3, scalelike, linear, and 1.5–3 mm, or leaflike, 10–15 mm, and similar to leaf-blades. Peduncles absent. Involucres 1 per node, turbinate, 2.5–3 × 1.5–2 mm; teeth 5, erect, 0.4–1 mm. Flowers (2–) 2.5–3.5 mm; perianth white to cream, glabrous; tepals connate proximal 1/4, essentially monomorphic, spatulate; stamens exserted, 1.5–4.5 mm; filaments glabrous or slightly pilose proximally. Achenes brown, 2–2.5 mm, glabrous. 2n = 40.


Phenology: Flowering Jul–Oct.
Habitat: Heavy clay flats and slopes, mixed grassland and saltbush communities, juniper woodlands
Elevation: 1500-1800 m

Discussion

Of conservation concern.

Eriogonum lancifolium is known only from Mancos Shale hills and flats east and south of Wellington, in Carbon and Emery counties. The largest population is found on the flats south of Mounds Reef. S. L. Welsh et al. (2003) reduced this species to synonymy under E. corymbosum var. corymbosum.

Selected References

None.

Lower Taxa

None.

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... more about "Eriogonum lancifolium"
included +  and exserted +
3-gonous +
usually red +  and cream or yellow +
oblong +  and ellipsoid or oval +
acute;obtuse or rounded +
James L. Reveal +
Reveal & Brotherson +
deciduous +  and persistent +
stipelike +
Undefined subg. Eucycla +
papillate +
awn-tipped +  and simple +
3 cm30 mm <br />0.03 m <br /> (5 cm50 mm <br />0.05 m <br />) +
silvery-tomentose +
crenulate;lanceolate;elliptic +
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
not awn-tipped +
glandular +, pubescent +  and glabrous +
scale-like +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
not brittle +
spreading +  and erect +
tomentose +  and subglabrous +
scabrellous +
ridged +, angled +  and round +
spreading +  and erect +
whorled +, opposite +  and alternate +
Lance-leaf wild buckwheat +
1500-1800 m +
pilose +  and glabrous +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
unisexual +, , +  and bisexual +
not attenuate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
decumbent to erect +  and prostrate +
not fistulose +
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 +
Heavy clay flats and slopes, mixed grassland and saltbush communities, juniper woodlands +
reduced +
capitate +  and subcapitate +
dense +  and diffuse +
cymelike +, paniclelike +, racemelike +  and spikelike +
connate +  and free +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
nonmembranous +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
in whorls +, opposite +, alternate +  and rosulate +
persistent +
bractlike +
subglabrous +
revolute +  and plane +
not swollen +
orthotropous +
accrescent +
curved +  and straight +
erect to deflexed +
cylindric +  and urceolate +
accrescent +
fleshy +, indurate +  and membranous +
with extrafloral nectaries +  and not articulate +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Flowering Jul–Oct. +
homostylous +  and 3-carpellate +
Great Basin Naturalist +
, +  and solid +
slender;stout +
persistent +
Endemic +  and Conservation concern +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
decumbent to erect +  and prostrate +
glandular +, pubescent +  and glabrous +
0 +  and 1/2 +
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 corymbosum var. davidsei +
chambered +  and solid +
slender +  and stout +
Eriogonum lancifolium +
Eriogonum subg. Eucycla +
species +
emarginate +  and entire +
0 +  and 1/2 +
spatulate +
coriaceous +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
persistent +
membranous +
pubescent +  and glabrous +
plant +  and shrub +
grayish-tomentose +
synoecious +, monocarpic +, polycarpic +  and , +
3 +, 2 +  and 1 +