Eriogonum ovalifolium var. vineum

(Small) A. Nelson

Bot. Gaz. 52: 262. 1911.

Common names: Cushionbury wild buckwheat
EndemicConservation concern
Basionym: Eriogonum vineum Small Bull. Torrey Bot. Club 25: 45. 1898
Synonyms: Eriogonum ovalifolium subsp. vineum (Small) S. Stokes
Treatment appears in FNA Volume 5. Treatment on page 322. Mentioned on page 319, 320.

Plants 1.5–2.5 dm wide. Leaf-blades usually round, 0.7–1.2 cm, densely white-lanate, margins not brownish. Scapes erect or nearly so, 3–6 cm, floccose to nearly glabrous. Inflorescences capitate, 1.5–3.5 cm wide; branches absent. Involucres 2–4 (–5) per cluster, 5–7 mm. Flowers 5–7 mm; perianth white to cream.


Phenology: Flowering May–Jun.
Habitat: Limestone talus slopes, creosote bush and saltbush communities, conifer woodlands
Elevation: 1500-2100 m

Discussion

Of conservation concern.

Variety vineum is a rare and localized taxon restricted to the Cushionbury Grade area of San Bernardino County. It has been designated federally as endangered (see M. C. Neel et al. 2001; Neel and N. C. Ellstrand 2003) and is in the Center for Plant Conservation’s National Collection of Endangered Plants. The plants are highly attractive and worthy of cultivation.

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.

light-brown;brown +
included +  and exserted +
3-gonous +
usually red +  and cream or yellow +
oblong +  and ellipsoid or oval +
acute;obtuse or rounded +
James L. Reveal +
(Small) A. Nelson +
deciduous +  and persistent +
stipelike +
Eriogonum vineum +
papillate +
0.7 cm7 mm <br />0.007 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
awn-tipped +  and simple +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (6 cm60 mm <br />0.06 m <br />) +
lanate +  and tomentose or floccose +
oblanceolate;elliptic or spatulate +
0.2 cm2 mm <br />0.002 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
not awn-tipped +
leaflike +  and semileaflike +
glandular +, pubescent +  and glabrous +
linear +  and triangular +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
grooved +, branched +  and open +
not brittle +
spreading +  and erect +
tomentose +  and floccose or glabrous occasionally lanate or glandular +
scabrellous +
ridged +, angled +  and round +
whorled +, opposite +  and alternate +
Cushionbury wild buckwheat +
1500-2100 m +
0.6 cm6 mm <br />0.006 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
unisexual +, , +  and bisexual +
not attenuate +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 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 +
Limestone talus slopes, creosote bush and saltbush communities, conifer woodlands +
reduced +
umbellate +  and capitate +
5 cm50 mm <br />0.05 m <br /> (7 cm70 mm <br />0.07 m <br />) +
dense +  and diffuse +
0.7 cm7 mm <br />0.007 m <br /> (5 cm50 mm <br />0.05 m <br />) +
cymelike +, paniclelike +, racemelike +  and spikelike +
1.5 cm15 mm <br />0.015 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
connate +  and free +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
tomentose +  and floccose +
turbinate +  and turbinate-campanulate +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
nonmembranous +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
in whorls +, opposite +, alternate +  and rosulate +
persistent +
bractlike +
not brownish +
pubescent +  and glabrous +
not swollen +
orthotropous +
accrescent +
curved +  and straight +
erect to deflexed +
cylindric +  and urceolate +
accrescent +
fleshy +, indurate +  and membranous +
0.1 cm1 mm <br />0.001 m <br /> (10 cm100 mm <br />0.1 m <br />) +
Flowering May–Jun. +
homostylous +  and 3-carpellate +
, +  and solid +
slender;stout +
nearly +  and erect +
floccose +  and nearly glabrous +
3 cm30 mm <br />0.03 m <br /> (6 cm60 mm <br />0.06 m <br />) +
persistent +
Endemic +  and Conservation concern +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
decumbent to erect +  and prostrate +
decumbent +  and spreading +
glandular +, pubescent +  and 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 ovalifolium subsp. vineum +
chambered +  and solid +
slender +  and stout +
Eriogonum ovalifolium var. vineum +
Eriogonum ovalifolium +
variety +
emarginate +  and entire +
in proximal 1/2 +  and connate +
0 +  and 1/2 +
lobed +  and laciniate +
coriaceous +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
persistent +
membranous +
pubescent +  and glabrous +
floccose +  and tomentose or lanate +
synoecious +, monocarpic +, polycarpic +  and , +
3 +, 2 +  and 1 +
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +