Eriogonum vestitum

J. T. Howell

Leafl. W. Bot. 2: 42. 1937.

Common names: Idria wild buckwheat
IllustratedEndemic
Treatment appears in FNA Volume 5. Treatment on page 418. Mentioned on page 414.
Revision as of 09:50, 30 July 2020 by imported>Volume Importer
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Herbs, erect, (0.5–) 1–4 (–5) dm, tomentose, greenish gray to gray. Stems: aerial flowering-stems erect, 0.5–1 dm, tomentose. Leaves basal and cauline; basal: petiole 1–4 cm, thinly tomentose, blade narrowly oblong to obovate, (1–) 2–4 (–5) × 1–2 (–3) cm, thinly tomentose and greenish abaxially, floccose to glabrate and greenish adaxially; cauline: petiole 0.5–2 cm, thinly tomentose, blade elliptic or rarely ovate, (0.7–) 1–3 (–4.5) ×0.5–1.5 (–3.5) cm, similar to basal blade. Inflorescences cymose, somewhat diffuse, 10–40 (–45) × 5–30 cm; branches tomentose; bracts 2–4 × 0.5–1.5 mm. Peduncles erect, straight, slender, 0.5–4 (–6) cm, tomentose. Involucres terminal at tips of slender branchlets proximally, not appressed to branches, narrowly campanulate, (1.5–) 1.8–2 × 1.5–2 (–2.2) mm, tomentose; teeth 5, erect, 0.3–0.5 mm. Flowers 1.5–2 (–2.5) mm; perianth white, glabrous but conspicuously pustulose; tepals monomorphic, narrowly elliptic to oblong; stamens included, 1–1.5 mm; filaments pilose proximally; styles 0.7–1 mm. Achenes brown, 3-gonous, 2–2.5 mm; beak papillose. 2n = 34.


Phenology: Flowering Mar–Nov.
Habitat: Clayey outcrops and slopes, mixed grassland communities, oak and pine woodlands
Elevation: 400-700 m

Discussion

Eriogonum vestitum is restricted to the Idria region of San Benito County, the Silver Creek Canyon and Mercey Hot Springs areas of Fresno County, and the Los Banos Hills in Merced County. It is closely related to E. eastwoodianum. Some individuals mimic E. gracile, and a clear distinction is not always possible with immature specimens.

Selected References

None.

Lower Taxa

None.

"narrowing" is not a number."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 vestitum"
included +  and exserted +
3-gonous +
usually red +  and cream or yellow +
oblong +  and ellipsoid or oval +
James L. Reveal +
J. T. Howell +
deciduous +  and persistent +
stipelike +  and acute +
Eriogonum sect. Oregonium +
papillose +
awn-tipped +  and simple +
3 cm30 mm <br />0.03 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
floccose +  and glabrate +
ovate;elliptic;narrowly oblong;obovate +
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
not awn-tipped +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
glandular +, pubescent +  and glabrous +
scale-like +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
grooved +, disarticulating +  and dichotomous +
not brittle +
scabrellous +
ridged +, angled +  and round +
spreading +  and erect +
whorled +, opposite +  and alternate +
Idria wild buckwheat +
400-700 m +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
unisexual +, , +  and bisexual +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 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 +
Clayey outcrops and slopes, mixed grassland communities, oak and pine woodlands +
capitate +  and subcapitate +
40 cm400 mm <br />0.4 m <br /> (45 cm450 mm <br />0.45 m <br />) +
10 cm100 mm <br />0.1 m <br /> (40 cm400 mm <br />0.4 m <br />) +
cymelike +, paniclelike +, racemelike +  and spikelike +
5 cm50 mm <br />0.05 m <br /> (30 cm300 mm <br />0.3 m <br />) +
connate +  and free +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
campanulate +
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 +
marcescent +
persistent +
cauline +  and basal +
bractlike +
pubescent +  and glabrous +
lobed +, undulate +, crisped +, crenulate +  and entire +
not swollen +
orthotropous +
accrescent +
4 cm40 mm <br />0.04 m <br /> (6 cm60 mm <br />0.06 m <br />) +
erect to deflexed +
0.5 cm5 mm <br />0.005 m <br /> (4 cm40 mm <br />0.04 m <br />) +
cylindric +  and urceolate +
accrescent +
fleshy +, indurate +  and membranous +
with extrafloral nectaries +  and not articulate +
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Flowering Mar–Nov. +
homostylous +  and 3-carpellate +
Leafl. W. Bot. +
, +  and solid +
slender;stout +
persistent +
Illustrated +  and Endemic +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 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 +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (?) +  and 0.1 cm1 mm <br />0.001 m <br /> (?) +
spreading;erect +
chambered +  and solid +
slender +  and stout +
Eriogonum vestitum +
Eriogonum subg. Oregonium +
species +
emarginate +  and entire +
1/4 +  and 1/2 +
narrowly elliptic +  and oblong +
coriaceous +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
involucral +
persistent +
membranous +
pubescent +  and glabrous +
short-pilose +, puberulent +, sericeous +, floccose +  and tomentose or lanate +
greenish gray +  and gray +
annual +, biennial +  and perennial +
synoecious +, monocarpic +, polycarpic +  and , +
3 +, 2 +  and 1 +