Eriogonum gracillimum

S. Watson in W. H. Brewer et al.

in W. H. Brewer et al., Bot. California 2: 480. 1880.

Common names: Rose-and-white wild buckwheat
Endemic
Synonyms: Eriogonum angulosum subsp. gracillimum (S. Watson) S. Stokes Eriogonum angulosum var. gracillimum (S. Watson) M. E. Jones Eriogonum angulosum subsp. victorense (M. E. Jones) S. Stokes
Treatment appears in FNA Volume 5. Treatment on page 412. Mentioned on page 381, 411.

Herbs, erect to spreading, annual, 1–5 dm, thinly tomentose, greenish, grayish, or reddish. Stems: caudex absent; aerial flowering-stems erect, not striated but sometimes angled, solid, not fistulose, 0.1–0.8 dm, tomentose. Leaves basal and cauline; basal: petiole 0.5–1 cm, floccose; basal blade oblanceolate to oblong, 2–4 × 0.3–1 cm, tomentose abaxially, floccose to glabrate and grayish or greenish adaxially, margins crenulate, often slightly revolute; cauline sessile, blade narrowly oblong, 0.5–2 (–6) × 0.2–0.8 (–1.5) cm, similar to basal blade. Inflorescences cymose, mostly open, 5–35 × 5–35 cm; branches thinly tomentose; bracts 3, scalelike, 1–3 × 1–2.5 mm. Peduncles spreading, straight, capillary, 0.8–2.5 cm, glabrous. Involucres campanulate, 1.8–2 × 2–3 mm, glandular-puberulent, not densely tomentose adaxially; teeth 5, erect, 0.4–0.8 mm. Flowers 2–2.5 mm; perianth white to rose, glandular-puberulent; tepals monomorphic, oblong to elliptic; stamens included, 1–2 mm; filaments pilose proximally. Achenes light-brown, 3-gonous, 1–1.2 (–1.5) mm, glabrous. 2n = 40.


Phenology: Flowering year-round.
Habitat: Sandy to gravelly or clayey flats and slopes, mixed grassland, chaparral, saltbush, and creosote bush communities, oak and conifer woodlands
Elevation: 0-1100 m

Discussion

Eriogonum gracillimum is found in the Coast, Transverse, and scattered mountain desert ranges in Fresno, Inyo, Kern, Kings, Los Angeles, Madera, Merced, Monterey, Riverside, San Benito, San Bernardino, San Diego, San Luis Obispo, Santa Barbara, and Tulare counties. The species is often common and occasionally even weedy.

Selected References

None.

Lower Taxa

None.

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

... more about "Eriogonum gracillimum"
0.12 cm1.2 mm <br />0.0012 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
light-brown +
included +  and exserted +
3-gonous +
usually red +  and cream or yellow +
oblong +  and ellipsoid or oval +
James L. Reveal +
S. Watson in W. H. Brewer et al. +
greenish +  and grayish +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
floccose +  and glabrate +
oblanceolate;oblong +
0.3 cm3 mm <br />0.003 m <br /> (1 cm10 mm <br />0.01 m <br />) +
deciduous +  and persistent +
stipelike +
Eriogonum sect. Ganysma +
awn-tipped +  and simple +
2 cm20 mm <br />0.02 m <br /> (6 cm60 mm <br />0.06 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
glabrous +, hispid +, pilose +, villous +, hirsute +, floccose +, tomentose +  and lanate +
0.2 cm2 mm <br />0.002 m <br /> (0.8 cm8 mm <br />0.008 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 /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
grooved +, disarticulating +  and dichotomous +
not brittle +
scabrellous +
ridged +, angled +  and round +
spreading +  and erect +
whorled +, opposite +  and alternate +
Rose-and-white wild buckwheat +
0-1100 m +
unisexual +, , +  and bisexual +
not attenuate +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
decumbent to erect +  and prostrate +
not fistulose +  and angled +
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 or clayey flats and slopes, mixed grassland, chaparral, saltbush, and creosote bush communities, oak and conifer woodlands +
open +  and cymose +
capitate +  and subcapitate +
racemose +, paniculate +  and cymose-paniculate +
5 cm50 mm <br />0.05 m <br /> (35 cm350 mm <br />0.35 m <br />) +
cymelike +, paniclelike +, racemelike +  and spikelike +
5 cm50 mm <br />0.05 m <br /> (35 cm350 mm <br />0.35 m <br />) +
connate +  and free +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
tomentose +  and glandular-puberulent +
campanulate +
nonmembranous +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
in whorls +, opposite +, alternate +  and rosulate +
marcescent +
persistent +
cauline +  and basal +
bractlike +
pubescent +  and glabrous +
crenulate +
not swollen +
orthotropous +
accrescent +
erect to deflexed +
capillary +
0.8 cm8 mm <br />0.008 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
glandular-puberulent +
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 />) +
Flowering year-round. +
homostylous +  and 3-carpellate +
in W. H. Brewer et al., Bot. California +
, +  and solid +
slender;stout +
persistent +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
decumbent to erect +  and prostrate +
spreading +  and erect +
glabrous +, short-hispid +, villous +, hirsute +, floccose +  and tomentose +
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 angulosum subsp. gracillimum +, Eriogonum angulosum var. gracillimum +  and Eriogonum angulosum subsp. victorense +
chambered +  and solid +
slender +  and stout +
Eriogonum gracillimum +
Eriogonum subg. Ganysma +
species +
emarginate +  and entire +
1/5 +  and 1/2 +
oblong +  and elliptic +
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 +
annual +  and perennial +
reddish +, grayish +  and greenish +
synoecious +, monocarpic +, polycarpic +  and , +
3 +, 2 +  and 1 +