Eriogonum zionis

J. T. Howell

Leafl. W. Bot. 2: 253. 1940.

Endemic
Synonyms: Eriogonum racemosum var. zionis (J. T. Howell) S. L. Welsh
Treatment appears in FNA Volume 5. Treatment on page 297. Mentioned on page 235, 237, 296.
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Herbs, erect to spreading, 3–8 (–10) × 0.5–1.5 dm, glabrous and glaucous, rarely tomentose, greenish. Stems spreading to erect, without persistent leaf-bases, up to 1/8 height of plant; caudex stems absent; aerial flowering-stems erect to spreading, slender to stout, solid or hollow, often fistulose, 1–2.5 (–3) dm, glabrous, rarely tomentose. Leaves basal, 1 per node; petiole 3–6 (–10) cm, tomentose to floccose; blade elliptic or oblong-ovate to ovate, 2–4.5 (–6) × 1.5–2.5 (–5) cm, lanate to densely tomentose abaxially, thinly floccose or glabrous and green adaxially, margins plane. Inflorescences narrowly virgate or racemose with involucres racemosely disposed throughout or at tips, 20–50 (–60) × 5–25 cm, glabrous, rarely tomentose; branches dichotomous, upper secondaries suppressed and bearing (8–) 10–15 (–20) racemosely arranged involucres; bracts 3, scalelike, triangular, and 2–7 mm, or leaflike, elliptic, and 10–30 × 4–15 mm. Peduncles absent. Involucres 1 per node, turbinate to turbinate-campanulate, 1.5–3 × 1.5–2.5 mm, tomentose; teeth 5, erect, 0.2–0.4 mm. Flowers 2–6 (–7) mm; perianth white to yellow or bright red, glabrous; tepals connate proximal 1/4 their length, monomorphic, oblong; stamens exserted, 2–5 mm; filaments pilose proximally. Achenes light-brown, (3–) 4–5 (–6) mm, glabrous.

Discussion

Varieties 2 (2 in the flora).

Selected References

None.

Key

1 Perianths white to yellow Eriogonum zionis var. zionis
1 Perianths bright red Eriogonum zionis var. coccineum

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

... more about "Eriogonum zionis"
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
light-brown +
included +  and exserted +
3-gonous +
usually red +  and cream or yellow +
oblong +  and ellipsoid or oval +
acute;obtuse or rounded +
James L. Reveal +
J. T. Howell +
deciduous +  and persistent +
stipelike +
Undefined subg. Eucycla +
papillate +
awn-tipped +  and simple +
4.5 cm45 mm <br />0.045 m <br /> (6 cm60 mm <br />0.06 m <br />) +
2.5 cm25 mm <br />0.025 m <br /> (5 cm50 mm <br />0.05 m <br />) +
2 cm20 mm <br />0.02 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
lanate +  and densely tomentose abaxially +
oblong-ovate;ovate +
1.5 cm15 mm <br />0.015 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
not awn-tipped +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
glandular +, pubescent +  and glabrous +
triangular +  and scale-like +
0.2 cm2 mm <br />0.002 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
not brittle +
spreading +  and erect +
tomentose +  and floccose or glabrous occasionally lanate or glandular +
scabrellous +
ridged +, angled +  and round +
spreading +  and erect +
whorled +, opposite +  and alternate +
Ariz. +  and Utah +
0.6 cm6 mm <br />0.006 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
unisexual +, , +  and bisexual +
not attenuate +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
hollow +  and solid +
decumbent to erect +  and prostrate +
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 +
reduced +
capitate +  and subcapitate +
50 cm500 mm <br />0.5 m <br /> (60 cm600 mm <br />0.6 m <br />) +
dense +  and diffuse +
20 cm200 mm <br />0.2 m <br /> (50 cm500 mm <br />0.5 m <br />) +
tomentose +  and glabrous +
cymelike +, paniclelike +, racemelike +  and spikelike +
5 cm50 mm <br />0.05 m <br /> (25 cm250 mm <br />0.25 m <br />) +
connate +  and free +
arranged +, at tips +  and disposed +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
turbinate +  and turbinate-campanulate +
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 +
white;yellow or bright red +
cylindric +  and urceolate +
accrescent +
fleshy +, indurate +  and membranous +
with extrafloral nectaries +  and not articulate +
6 cm60 mm <br />0.06 m <br /> (10 cm100 mm <br />0.1 m <br />) +
tomentose +  and floccose +
3 cm30 mm <br />0.03 m <br /> (6 cm60 mm <br />0.06 m <br />) +
homostylous +  and 3-carpellate +
Leafl. W. 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 +
spreading +  and erect +
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 racemosum var. zionis +
chambered +  and solid +
slender +  and stout +
Eriogonum zionis +
Eriogonum subg. Eucycla +
species +
emarginate +  and entire +
coriaceous +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
persistent +
membranous +
pubescent +  and glabrous +
tomentose +, glaucous +  and glabrous +
synoecious +, monocarpic +, polycarpic +  and , +
3 +, 2 +  and 1 +