Eriogonum heermannii var. floccosum

Munz

Man. S. Calif. Bot., 121, 597. 1935.

Common names: Heermann’s woolly wild buckwheat
Endemic
Synonyms: Eriogonum heermannii subsp. floccosum (Munz) Munz
Treatment appears in FNA Volume 5. Treatment on page 306. Mentioned on page 304.

Shrubs, rounded, usually sparsely branched, 3–6 × 4–8 dm. Leaf-blades oblanceolate, (0.5–) 0.8–1.5 × 0.2–0.5 cm, tomentose to floccose abaxially. Inflorescences rather dense 5–12 × 5–20 cm; branches rather diffuse, with racemosely arranged involucres at tips, slender, round, smooth, floccose to thinly tomentose, not spinose. Involucres campanulate, 1–1.5 (–2) × 1–1.5 mm. Flowers 2–3 mm; perianth yellowish white.


Phenology: Flowering May–Oct.
Habitat: Calcareous gravelly washes and slopes in saltbush and creosote bush communities, and occasionally in juniper woodlands
Elevation: 900-2300 m

Discussion

Variety floccosum is found in scattered desert ranges of eastern San Bernardino County and in the Kingston Mountains of Inyo County, California, in the McCullough Mountains of southern Clark County, Nevada, and just over the border in Mohave County, Arizona. It is disjunct in the Juniper Mesa area of west-central Yavapai County, Arizona, northwest of Prescott.

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.

light-brown;brown +
included +  and exserted +
3-gonous +
usually red +  and cream or yellow +
oblong +  and ellipsoid or oval +
acute;obtuse or rounded +
James L. Reveal +
deciduous +  and persistent +
stipelike +
Eriogonum geniculatum +
papillate +
awn-tipped +  and simple +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
tomentose +  and floccose or glabrous abaxially +
oblong;elliptic;spatulate;oblanceolate;oblong;elliptic;spatulate;oblanceolate;linear +
0.1 cm1 mm <br />0.001 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
not awn-tipped +
leaflike +  and semileaflike +
glandular +, pubescent +  and glabrous +
scale-like +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
grooved +  and dichotomous +
angled to ridged +  and smooth +
not brittle +
spreading +  and erect +
floccose +  and thinly tomentose +
scabrellous +
slender +
spreading +  and erect +
whorled +, opposite +  and alternate +
Heermann’s woolly wild buckwheat +
Ariz. +, Calif. +  and Nev. +
900-2300 m +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
unisexual +, , +  and bisexual +
not attenuate +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 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 +
Calcareous gravelly washes and slopes in saltbush and creosote bush communities, and occasionally in juniper woodlands +
reduced +
capitate +  and subcapitate +
25 cm250 mm <br />0.25 m <br /> (30 cm300 mm <br />0.3 m <br />) +
30 cm300 mm <br />0.3 m <br /> (35 cm350 mm <br />0.35 m <br />) +
5 cm50 mm <br />0.05 m <br /> (12 cm120 mm <br />0.12 m <br />) +
cymelike +, paniclelike +, racemelike +  and spikelike +
5 cm50 mm <br />0.05 m <br /> (20 cm200 mm <br />0.2 m <br />) +
connate +  and free +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
floccose +  and glabrous +
campanulate +
nonmembranous +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
tomentose +  and floccose +
oblanceolate +
0.2cm;0.5cm +
in whorls +, opposite +, alternate +  and rosulate +
deciduous +
bractlike +
pubescent +  and glabrous +
not swollen +
orthotropous +
accrescent +
curved +  and straight +
erect to deflexed +
yellowish white +
cylindric +  and urceolate +
accrescent +
fleshy +, indurate +  and membranous +
with extrafloral nectaries +  and not articulate +
glabrous +  and floccose +
0.1 cm1 mm <br />0.001 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Flowering May–Oct. +
homostylous +  and 3-carpellate +
Man. S. Calif. Bot., +
, +  and solid +
slender;stout +
persistent +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
decumbent to erect +  and prostrate +
erect +  and spreading +
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 heermannii subsp. floccosum +
chambered +  and solid +
slender +  and stout +
Eriogonum heermannii var. floccosum +
Eriogonum heermannii +
variety +
emarginate +  and entire +
in proximal 1/2 +  and connate +
0 +  and 1/2 +
lobed +  and laciniate +
coriaceous +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
persistent +
membranous +
pubescent +  and glabrous +
grayish +  and greenish +
erect;spreading;erect;spreading +
floccose +  and glabrous +
synoecious +, monocarpic +, polycarpic +  and , +
3 +, 2 +  and 1 +