Eriogonum batemanii

M. E. Jones

Contr. W. Bot. 11: 11. 1903.

Common names: Bateman’s wild buckwheat
Treatment appears in FNA Volume 5. Treatment on page 272. Mentioned on page 236, 241, 264, 273.

Herbs, spreading, not scapose, (1–) 1.5–3.5 (–5) × 1–2.5 dm, glabrous, grayish. Stems spreading, usually without persistent leaf-bases, up to 1/4 height of plant; caudex stems absent; aerial flowering-stems erect, slender, solid, not fistulose, 1–2 dm, glabrous. Leaves basal, 1 per node; petiole 0.8–2.5 (–4) cm, tomentose; blade elliptic, (1–) 1.5–3 (–5) × 0.6–1 (–1.2) cm, densely white-tomentose abaxially, less so and white adaxially, margins plane. Inflorescences cymose, 4–15 × 5–15 cm; branches dichotomous, glabrous; bracts 3, scalelike, triangular, 1–2 mm. Peduncles absent. Involucres (1–) 2–5 per cluster, turbinate, 2–4 × 1.5–2.5 (–3.5) mm, glabrous; teeth 5, erect, 0.5–0.8 mm. Flowers 1.5–3 mm; perianth white, glabrous; tepals connate proximally, monomorphic, obovate; stamens exserted, 1.5–3.5 mm; filaments sparsely pilose proximally. Achenes light-brown to brown, 2.5–3 mm, glabrous. 2n = 40.


Phenology: Flowering Jun–Sep.
Habitat: Shaley, silty, gravelly, or clayey flats, washes, and slopes, saltbush and sagebrush communities, juniper woodlands
Elevation: 1400-2600 m

Discussion

Eriogonum batemanii is fairly common throughout its range in northwestern Colorado (Moffat and Rio Blanco counties) and east-central Utah (Carbon, Duchesne, Emery, Garfield, Grand, and Uintah counties). In Duchesne County it hybridizes with E. shockleyi, producing an unnamed but distinctive hybrid.

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.

... more about "Eriogonum batemanii"
light-brown;brown +
included +  and exserted +
3-gonous +
usually red +  and cream or yellow +
oblong +  and ellipsoid or oval +
James L. Reveal +
M. E. Jones +
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 />) +
1 cm10 mm <br />0.01 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
white-tomentose +
linear;orbiculate +
0.6cm;1cm +
not awn-tipped +
leaflike +  and semileaflike +
glandular +, pubescent +  and glabrous +
triangular +  and scale-like +
not brittle +
spreading +  and erect +
scabrellous +
ridged +, angled +  and round +
spreading +  and erect +
whorled +, opposite +  and alternate +
Bateman’s wild buckwheat +
Colo. +  and Utah. +
1400-2600 m +
unisexual +, , +  and bisexual +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 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 +
Shaley, silty, gravelly, or clayey flats, washes, and slopes, saltbush and sagebrush 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 /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
nonmembranous +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
in whorls +, opposite +, alternate +  and rosulate +
persistent +
bractlike +
pubescent +  and glabrous +
not swollen +
orthotropous +
accrescent +
curved +  and straight +
erect to deflexed +
cylindric +  and urceolate +
accrescent +
fleshy +, indurate +  and membranous +
with extrafloral nectaries +  and not articulate +
2.5 cm25 mm <br />0.025 m <br /> (4 cm40 mm <br />0.04 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Flowering Jun–Sep. +
homostylous +  and 3-carpellate +
Contr. W. Bot. +
, +  and solid +
slender;stout +
persistent +
decumbent to erect +  and prostrate +
penicillate +, fimbriate +  and capitate +
deciduous +  and persistent +
? (?) +  and ? (?) +
coriaceous +  and membranous +
consisting of a series +  and tubular +
distinct +
erect;spreading or recurved +
chambered +  and solid +
Slender (?) +  and Stout (?) +
Eriogonum batemanii +
Eriogonum subg. Eucycla +
species +
emarginate +  and entire +
0 +  and 1/2 +
obovate +
coriaceous +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
persistent +
membranous +
pubescent +  and glabrous +
synoecious +, monocarpic +, polycarpic +  and , +
3 +, 2 +  and 1 +