Eriogonum jamesii var. jamesii

Common names: James’s antelope sage
Treatment appears in FNA Volume 5. Treatment on page 368. Mentioned on page 370.

Herbs, spreading, loose mats, 3–8 dm wide. Aerial flowering-stems tomentose to floccose. Leaf-blades 1–3 × 0.5–1 cm, densely whitish to grayish-tomentose abaxially, less so to thinly tomentose and greenish adaxially, margins plane. Inflorescences compound-umbellate, branched 2–5 times; bracts usually semileaflike, those of proximal node 0.5–2 × 0.3–1 cm. Involucres 4–7 × 2–5 mm. Flowers 4–8 mm. 2n = 40.


Phenology: Flowering Jun–Oct.
Habitat: Sandy to gravelly or infrequently rocky flats and slopes, mixed grassland, saltbush, blackbrush, creosote bush, mesquite, and sagebrush communities, oak, pinyon and/or juniper, and montane conifer woodlands
Elevation: (1000-)1300-2900(-3100) m

Distribution

V5 754-distribution-map.gif

Ariz., Colo., N.Mex., Okla., Tex.

Discussion

Variety jamesii is widespread, and although generally scattered and infrequent, can be locally common in places. It occurs from southern Colorado south into eastern Arizona, New Mexico, western Oklahoma, and northern and western Texas. It merges with var. undulatum in southeastern Arizona, southern New Mexico, and especially western Texas.

Selected References

None.

Lower Taxa

None.

"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 +
James L. Reveal +
Bentham in A. P. de Candolle and A. L. P. P. de Candolle +
deciduous +  and persistent +
stipelike +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
awn-tipped +  and simple +
3 cm30 mm <br />0.03 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
grayish +  and greenish +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
glabrous +, floccose +  and tomentose +
linear;orbiculate +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
not awn-tipped +
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
glandular +, pubescent +  and glabrous +
scale-like +
0.2 cm2 mm <br />0.002 m <br /> (1 cm10 mm <br />0.01 m <br />) +
grooved +, disarticulating +  and dichotomous +
not brittle +
tomentose +  and floccose +
scabrellous +
spreading +  and erect +
whorled +, opposite +  and alternate +
James’s antelope sage +
Ariz. +, Colo. +, N.Mex. +, Okla. +  and Tex. +
(1000-)1300-2900(-3100) m +
curved +  and straight +
unisexual +  and bisexual +
attenuate +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 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 +
Sandy to gravelly or infrequently rocky flats and slopes, mixed grassland, saltbush, blackbrush, creosote bush, mesquite, and sagebrush communities, oak, pinyon and/or juniper, and montane conifer woodlands +
2-5 times +
branched +  and compound-umbellate +
subcapitate +  and capitate +
10 cm100 mm <br />0.1 m <br /> (30 cm300 mm <br />0.3 m <br />) +
cymelike +, paniclelike +, racemelike +  and spikelike +
10 cm100 mm <br />0.1 m <br /> (25 cm250 mm <br />0.25 m <br />) +
connate +  and free +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
tomentose +  and floccose +
nonmembranous +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
greenish +  and whitish +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
tomentose +  and grayish-tomentose +
in whorls +, opposite +, alternate +  and rosulate +
persistent +
bractlike +
pubescent +  and glabrous +
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (1 cm10 mm <br />0.01 m <br />) +
not swollen +
orthotropous +
accrescent +
curved +  and straight +
erect to deflexed +
cylindric +  and urceolate +
accrescent +
fleshy +, indurate +  and membranous +
with extrafloral nectaries +  and not articulate +
tomentose +  and floccose +
0.5 cm5 mm <br />0.005 m <br /> (6 cm60 mm <br />0.06 m <br />) +
Flowering Jun–Oct. +
homostylous +  and 3-carpellate +
in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. +
, +  and solid +
slender;stout +
persistent +
Illustrated +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
decumbent to erect +  and prostrate +
prostrate +  and erect +
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 +
chambered +  and solid +
slender +  and stout +
Eriogonum jamesii var. jamesii +
Eriogonum jamesii +
variety +
emarginate +  and entire +
1/4 +  and 1/3 +
lobed +  and laciniate +
coriaceous +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
persistent +
membranous +
pubescent +  and glabrous +
tomentose +  and floccose +
dioecious +, polygamodioecious +, synoecious +  and polycarpic +
annual +, biennial +  and perennial +
synoecious +, monocarpic +, polycarpic +  and , +
3 +, 2 +  and 1 +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +