Eriogonum molestum

S. Watson

Proc. Amer. Acad. Arts 17: 379. 1882.

Common names: Pineland wild buckwheat
EndemicConservation concern
Synonyms: Eriogonum vimineum subsp. molestum (S. Watson) S. Stokes
Treatment appears in FNA Volume 5. Treatment on page 422. Mentioned on page 311, 415.
Revision as of 09:50, 30 July 2020 by imported>Volume Importer
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Herbs, erect, 4–10 dm, glabrous, greenish to grayish. Stems: aerial flowering-stems erect, 1–4 dm, glabrous. Leaves basal; petiole 1–6 cm, floccose; blade round to reniform, (0.5–) 1–4 × (0.5–) 1–4 cm, densely white-tomentose abaxially, floccose to glabrate and mostly greenish adaxially. Inflorescences cymose, occasionally distally uniparous due to suppression of secondary branches, open, 30–80 × 10–50 cm; branches straight, not inwardly curved distally, glabrous; bracts 1–3 × 1–3 mm. Peduncles absent. Involucres appressed to branches, cylindric-turbinate, (3.5–) 4–5 (–7) × 2.5–3 (3.5) mm, glabrous; teeth 5, erect, 0.2–0.4 mm. Flowers 1.5–3 mm; perianth white to pink, rarely pale-yellow, glabrous; tepals monomorphic, oblong-obovate; stamens included, 1–1.5 mm; filaments pilose proximally. Achenes brown, 3-gonous, 2–2.5 mm, glabrous. 2n = 40.


Phenology: Flowering May–Sep.
Habitat: Sandy flats and slopes, grassland and chaparral communities, oak and montane conifer woodlands
Elevation: 1100-2200 m

Discussion

Of conservation concern.

Eriogonum molestum is infrequent to occasionally common in the San Bernardino (San Bernardino County) and San Jacinto (Riverside County) mountains, and in scattered mountain ranges of San Diego County, California. It is easily confused with the perennial E. nudum var. pauciflorum.

Selected References

None.

Lower Taxa

None.

"narrowing" is not a number."dm" is not declared as a valid unit of measurement for this property.

... more about "Eriogonum molestum"
included +  and exserted +
3-gonous +
usually red +  and cream or yellow +
oblong +  and ellipsoid or oval +
James L. Reveal +
S. Watson +
deciduous +  and persistent +
stipelike +  and acute +
Eriogonum sect. Oregonium +
awn-tipped +  and simple +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
floccose +  and glabrate +
round;reniform +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
not awn-tipped +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
glandular +, pubescent +  and glabrous +
scale-like +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
grooved +, disarticulating +  and dichotomous +
curved +  and straight +
not brittle +
scabrellous +
ridged +, angled +  and round +
spreading +  and erect +
whorled +, opposite +  and alternate +
Pineland wild buckwheat +
1100-2200 m +
unisexual +, , +  and bisexual +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 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, grassland and chaparral communities, oak and montane conifer woodlands +
open +, uniparous +  and cymose +
capitate +  and subcapitate +
30 cm300 mm <br />0.3 m <br /> (80 cm800 mm <br />0.8 m <br />) +
cymelike +, paniclelike +, racemelike +  and spikelike +
10 cm100 mm <br />0.1 m <br /> (50 cm500 mm <br />0.5 m <br />) +
connate +  and free +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
3.5 cm35 mm <br />0.035 m <br /> (?) +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
cylindric-turbinate +
nonmembranous +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
in whorls +, opposite +, alternate +  and rosulate +
marcescent +
persistent +
bractlike +
pubescent +  and glabrous +
lobed +, undulate +, crisped +, crenulate +  and entire +
not swollen +
orthotropous +
accrescent +
erect to deflexed +
pale-yellow;white;pink +
cylindric +  and urceolate +
accrescent +
fleshy +, indurate +  and membranous +
with extrafloral nectaries +  and not articulate +
1 cm10 mm <br />0.01 m <br /> (6 cm60 mm <br />0.06 m <br />) +
Flowering May–Sep. +
homostylous +  and 3-carpellate +
Proc. Amer. Acad. Arts +
, +  and solid +
slender;stout +
persistent +
Endemic +  and Conservation concern +
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 vimineum subsp. molestum +
chambered +  and solid +
slender +  and stout +
Eriogonum molestum +
Eriogonum subg. Oregonium +
species +
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 +
greenish +  and grayish +
annual +, biennial +  and perennial +
synoecious +, monocarpic +, polycarpic +  and , +
3 +, 2 +  and 1 +