Eriogonum pendulum

S. Watson

Proc. Amer. Acad. Arts 23: 265. 1888.

Common names: Waldo wild buckwheat
Endemic
Synonyms: Eriogonum pendulum var. confertum S. Stokes
Treatment appears in FNA Volume 5. Treatment on page 303. Mentioned on page 228.

Shrubs, erect or slightly spreading, not scapose, 2–5 × 2–8 dm, densely tomentose, tannish. Stems mostly erect, without persistent leaf-bases, up to 1/2 height or more of plant; caudex stems absent; aerial flowering-stems erect, stout, solid, not fistulose, 2–4 dm, tomentose. Leaves 1 per node and sheathing up stems or fasciculate at tips of basal branches; petiole 0.1–0.5 (–1) cm, tomentose; blade oblanceolate to narrowly oblong, (1.5–) 2–4 (–5) × 1–2.5 (–3) cm, densely white-tomentose abaxially, floccose adaxially, margins plane. Inflorescences cymose, 15–30 (–40) × 15–40 cm; branches dichotomous, tomentose; bracts 3, semileaflike, narrowly oblanceolate, 3–7 × 1–3 mm. Peduncles absent or erect, slender, (1–) 3–10 cm, tomentose. Involucres 1 per node, turbinate-campanulate, 3.5–5 × 2.5–4 mm, tomentose; teeth 5–8, erect, 0.4–0.8 mm. Flowers 3–6 (–7) mm; perianth white, densely villous abaxially; tepals connate proximal 1/3, monomorphic, narrowly oblong; stamens exserted, 3–7 mm; filaments pilose proximally. Achenes brown, 3–5 mm, villous.


Phenology: Flowering Jul–Sep.
Habitat: Sandy to gravelly flats and slopes, sagebrush communities, oak and montane conifer woodlands
Elevation: 200-800 m

Discussion

Eriogonum pendulum is a rare to locally uncommon shrub in the O’Brien-Waldo area of Josephine County, Oregon, and more common in the Siskiyou Mountains of Del Norte County, California, as far south as Gasquet.

Selected References

None.

Lower Taxa

None.

"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 pendulum"
included +  and exserted +
3-gonous +
usually red +  and cream or yellow +
oblong +  and ellipsoid or oval +
acute;obtuse or rounded +
James L. Reveal +
S. Watson +
deciduous +  and persistent +
stipelike +
Undefined subg. Eucycla +
papillate +
awn-tipped +  and simple +
4 cm40 mm <br />0.04 m <br /> (5 cm50 mm <br />0.05 m <br />) +
2.5 cm25 mm <br />0.025 m <br /> (3 cm30 mm <br />0.03 m <br />) +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
floccose +  and white-tomentose +
oblanceolate;narrowly oblong +
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
not awn-tipped +
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
glandular +, pubescent +  and glabrous +
oblanceolate +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
not brittle +
spreading +  and erect +
scabrellous +
ridged +, angled +  and round +
spreading +  and erect +
whorled +, opposite +  and alternate +
Waldo wild buckwheat +
Calif. +  and Oreg. +
200-800 m +
0.6 cm6 mm <br />0.006 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
unisexual +, , +  and bisexual +
not attenuate +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
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 to gravelly flats and slopes, sagebrush communities, oak and montane conifer woodlands +
reduced +
capitate +  and subcapitate +
30 cm300 mm <br />0.3 m <br /> (40 cm400 mm <br />0.4 m <br />) +
dense +  and diffuse +
15 cm150 mm <br />0.15 m <br /> (30 cm300 mm <br />0.3 m <br />) +
cymelike +, paniclelike +, racemelike +  and spikelike +
15 cm150 mm <br />0.15 m <br /> (40 cm400 mm <br />0.4 m <br />) +
connate +  and free +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
turbinate-campanulate +
nonmembranous +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
in whorls +, opposite +, alternate +  and rosulate +
persistent +
cauline +  and basal +
bractlike +
pubescent +  and glabrous +
not swollen +
orthotropous +
accrescent +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
curved +  and straight +
erect to deflexed +
3 cm30 mm <br />0.03 m <br /> (10 cm100 mm <br />0.1 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 /> (1 cm10 mm <br />0.01 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Flowering Jul–Sep. +
homostylous +  and 3-carpellate +
Proc. Amer. Acad. Arts +
, +  and solid +
slender;stout +
persistent +
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
decumbent to erect +  and prostrate +
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 pendulum var. confertum +
chambered +  and solid +
slender +  and stout +
Eriogonum pendulum +
Eriogonum subg. Eucycla +
species +
emarginate +  and entire +
0 +  and 1/2 +
coriaceous +
0.04 cm0.4 mm <br />4.0e-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 +