Eriogonum inerme

(S. Watson) Jepson

Fl. Calif. 1: 406. 1914.

Endemic
Basionym: Oxytheca inermis S. Watson Proc. Amer. Acad. Arts 12: 273. 1877
Treatment appears in FNA Volume 5. Treatment on page 410. Mentioned on page 381, 439.

Herbs, spreading, annual, 0.5–3 dm, glandular, greenish or reddish. Stems: caudex absent; aerial flowering-stems mostly erect, solid, not fistulose, 0.1–0.5 dm, glandular. Leaves basal and cauline; basal: petiole 0.5–2 cm, glabrous, not or indistinctly winged, ciliate, blade spatulate, 1–4 (–4.5) × 0.4–1.5 (–1.8) cm, glabrous, margins ciliate; cauline sessile, blade lanceolate, 0.3–1 × 0.1–0.3 cm, similar to basal blade. Inflorescences cymose, open or diffuse, 5–25 × 5–30 cm; branches glandular; bracts 3, scalelike, 0.5–1.5 × 1–2 mm, occasionally semileaflike, 4–10 (–12) × 1–5 mm. Peduncles absent or erect, straight, slender, 0.1–1 cm, glandular. Involucres turbinate, 1.5–1.9 × 1–1.2 mm, glabrous or hispidulous; teeth 4, erect or nearly so, 0.8–1.2 mm. Flowers 4–6, 1.2–1.8 mm; perianth pink to reddish, hirsutulous with stiff, white, hooked hairs; tepals monomorphic, oblong; stamens included, 1–1.5 mm; filaments glabrous. Achenes brown, lenticular, 1.5–1.9 mm, glabrous; beak not exserted beyond tepals.

Discussion

Varieties 2 (2 in the flora).

Selected References

None.

Key

1 Involucres glabrous; Coast and Transverse ranges, California, disjunct in Boise County, Idaho Eriogonum inerme var. inerme
1 Involucres hispidulous; Transverse Ranges and s Sierra Nevada, disjunct in Tuolumne County, California Eriogonum inerme var. hispidulum

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

... more about "Eriogonum inerme"
included +  and exserted +
lenticular +
usually red +  and cream or yellow +
oblong +  and ellipsoid or oval +
James L. Reveal +
(S. Watson) Jepson +
deciduous +  and persistent +
stipelike +
Oxytheca inermis +
awn-tipped +  and simple +
4 cm40 mm <br />0.04 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (1 cm10 mm <br />0.01 m <br />) +
lanceolate;spatulate +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
not awn-tipped +
1 cm10 mm <br />0.01 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
glandular +, pubescent +  and glabrous +
scale-like +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
grooved +, disarticulating +  and dichotomous +
not brittle +
puberulent +, pilose-pubescent +, hispid +, sericeous +, floccose +, tomentose +  and lanate +
scabrellous +
ridged +, angled +  and round +
spreading +  and erect +
whorled +, opposite +  and alternate +
Calif. +  and Idaho. +
unisexual +, , +  and bisexual +
not attenuate +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.18 cm1.8 mm <br />0.0018 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 +
open +  and cymose +
capitate +  and subcapitate +
racemose +, paniculate +  and cymose-paniculate +
5 cm50 mm <br />0.05 m <br /> (25 cm250 mm <br />0.25 m <br />) +
cymelike +, paniclelike +, racemelike +  and spikelike +
5 cm50 mm <br />0.05 m <br /> (30 cm300 mm <br />0.3 m <br />) +
connate +  and free +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.19 cm1.9 mm <br />0.0019 m <br />) +
hispidulous +  and glabrous +
nonmembranous +
0.1 cm1 mm <br />0.001 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
in whorls +, opposite +, alternate +  and rosulate +
marcescent +
persistent +
cauline +  and basal +
bractlike +
pubescent +  and glabrous +
lobed +, undulate +, crisped +, crenulate +  and entire +
not swollen +
orthotropous +
accrescent +
erect to deflexed +
filiform;capillary +
0.1 cm1 mm <br />0.001 m <br /> (1 cm10 mm <br />0.01 m <br />) +
cylindric +  and urceolate +
accrescent +
fleshy +, indurate +  and membranous +
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
homostylous +  and 3-carpellate +
, +  and solid +
slender;stout +
persistent +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 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 +
chambered +  and solid +
slender +  and stout +
Eriogonum inerme +
Eriogonum subg. Ganysma +
species +
emarginate +  and entire +
1/5 +  and 1/2 +
coriaceous +
nearly +  and erect +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
persistent +
membranous +
pubescent +  and glabrous +
annual +  and perennial +
reddish +  and greenish +
villous +, hirsute +, floccose +, tomentose +, hispid +  and glabrous +
synoecious +, monocarpic +, polycarpic +  and , +
3 +, 2 +  and 1 +