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.

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 +