Eriogonum cithariforme var. agninum

(Greene) Reveal

Aliso 7: 223. 1970.

Common names: Santa Ynez wild buckwheat
Endemic
Basionym: Eriogonum agninum Greene Pittonia 2: 165. 1891
Synonyms: Eriogonum gracile var. polygonoides (S. Stokes) Munz Eriogonum vimineum var. agninum (Greene) S. Stokes Eriogonum vimineum subsp. polygonoides S. Stokes
Treatment appears in FNA Volume 5. Treatment on page 424. Mentioned on page 425.
Revision as of 09:51, 30 July 2020 by imported>Volume Importer
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Leaves: petiole not winged; basal blade elliptic to ovate or nearly rounded. Flowering-stems and inflorescence branches glabrous.


Phenology: Flowering May–Oct.
Habitat: Sandy flats and slopes, chaparral communities, oak and montane conifer woodlands
Elevation: 500-1800(-2100) m

Discussion

Variety agninum is known primarily from the mountains of Santa Barbara and Ventura counties. A single collection (Davidson 1617, NY) found along Big Rock Creek in Los Angeles County in 1900, and the type of subsp. polygonoides, gathered in San Luis Obispo County, are from disjunct populations. This variety is sometimes difficult to differentiate from E. davidsonii.

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.

included +  and exserted +
3-gonous +
usually red +  and cream or yellow +
oblong +  and ellipsoid or oval +
James L. Reveal +
(Greene) Reveal +
elliptic;ovate or nearly rounded +
deciduous +  and persistent +
stipelike +  and acute +
Eriogonum agninum +
awn-tipped +  and simple +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
grayish +  and greenish +
0.3 cm3 mm <br />0.003 m <br /> (1 cm10 mm <br />0.01 m <br />) +
floccose +  and glabrate +
elliptic;ovate or nearly rounded +
0.2 cm2 mm <br />0.002 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
not awn-tipped +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.25 cm2.5 mm <br />0.0025 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 +
tomentose +  and glabrous +
scabrellous +
ridged +, angled +  and round +
spreading +  and erect +
whorled +, opposite +  and alternate +
Santa Ynez wild buckwheat +
500-1800(-2100) m +
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 +
Sandy flats and slopes, chaparral communities, oak and montane conifer woodlands +
open +, uniparous +  and cymose +
capitate +  and subcapitate +
5 cm50 mm <br />0.05 m <br /> (25 cm250 mm <br />0.25 m <br />) +
cymelike +, paniclelike +, racemelike +  and spikelike +
5 cm50 mm <br />0.05 m <br /> (25 cm250 mm <br />0.25 m <br />) +
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 +
marcescent +
persistent +
cauline +  and basal +
bractlike +
pubescent +  and glabrous +
lobed +, undulate +, crisped +, crenulate +  and entire +
not swollen +
orthotropous +
accrescent +
erect to deflexed +
cylindric +  and urceolate +
accrescent +
fleshy +, indurate +  and membranous +
floccose +  and tomentose +
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Flowering May–Oct. +
homostylous +  and 3-carpellate +
, +  and solid +
slender;stout +
persistent +
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 +
spreading;erect +
Eriogonum gracile var. polygonoides +, Eriogonum vimineum var. agninum +  and Eriogonum vimineum subsp. polygonoides +
chambered +  and solid +
slender +  and stout +
Eriogonum cithariforme var. agninum +
Eriogonum cithariforme +
variety +
emarginate +  and entire +
1/4 +  and 1/2 +
oblong-obovate +
coriaceous +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
involucral +
persistent +
membranous +
pubescent +  and glabrous +
short-pilose +, puberulent +, sericeous +, floccose +  and tomentose or lanate +
reddish +  and greenish +
annual +, biennial +  and perennial +
tomentose +  and glabrous +
synoecious +, monocarpic +, polycarpic +  and , +
3 +, 2 +  and 1 +