Eriogonum hirtellum

J. T. Howell & Bacigalupi

Leafl. W. Bot. 9: 174. 1961.

Common names: Klamath Mountain wild buckwheat
EndemicConservation concern
Treatment appears in FNA Volume 5. Treatment on page 373. Mentioned on page 332.

Herbs, spreading, 1–3.5 × 2–4 (–6) dm, hirtellous to glabrescent. Stems: caudex spreading; aerial flowering-stems erect, slender, solid, not fistulose, arising at nodes of caudex branches and at distal nodes of short, nonflowering aerial branches, 0.8–2.5 (–3) dm, essentially glabrous. Leaves basal, occasionally in rosettes; petiole 0.3–4 cm, hirtellous; blade broadly oblanceolate to elliptic or ovate, 0.5–2 (–2.5) × 0.3–0.8 (–1.2) cm, hirtellous to glabrescent, margins plane, entire. Inflorescences subcapitate, (1.5–) 2–5 cm wide; branches subglabrous; bracts 5, semileaflike, 0.2–0.5 × 0.1–0.2 cm, absent immediately below involucre. Involucres 1 per node (often appearing clustered), narrowly turbinate, 5–6 × 2–3 mm, hirtellous; teeth 5–6, erect, 0.8–1 mm. Flowers 3–3.5 (–4) mm, including 0.1–0.2 mm stipelike base; perianth bright-yellow, sparsely white-pilose abaxially; tepals dimorphic, those of outer whorl spatulate, 2.5–3 mm wide, those of inner whorl oblanceolate, 1 mm wide; stamens exserted, 3–5 mm; filaments pilose proximally. Achenes light-brown, 3–3.5 mm, glabrous except for pubescent beak.


Phenology: Flowering Jul–Sep.
Habitat: Serpentine slopes and outcrops, oak and conifer woodlands
Elevation: (1100-)1300-1700(-2000) m

Discussion

Of conservation concern.

Eriogonum hirtellum is known only from a few scattered locations in the Klamath Mountains of Siskiyou County and just over the boundary in Del Norte County. It is considered to be “sensitive” by the Bureau of Land Management.

Selected References

None.

Lower Taxa

None.

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

... more about "Eriogonum hirtellum"
light-brown +
included +  and exserted +
3-gonous +
usually red +  and cream or yellow +
oblong +  and ellipsoid or oval +
James L. Reveal +
J. T. Howell & Bacigalupi +
deciduous +  and persistent +
stipelike +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.02 cm0.2 mm <br />2.0e-4 m <br />) +
awn-tipped +  and simple +
2 cm20 mm <br />0.02 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
hirtellous +  and glabrescent +
broadly oblanceolate;elliptic or ovate +
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
not awn-tipped +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
glandular +, pubescent +  and glabrous +
scale-like +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
grooved +, disarticulating +  and dichotomous +
not brittle +
subglabrous +
scabrellous +
spreading +  and erect +
whorled +, opposite +  and alternate +
Klamath Mountain wild buckwheat +
(1100-)1300-1700(-2000) m +
curved +  and straight +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
unisexual +  and bisexual +
attenuate +
0.3 cm3 mm <br />0.003 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
decumbent to erect +  and prostrate +
not fistulose +
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 +
Serpentine slopes and outcrops, oak and conifer woodlands +
open +, simple +  and compound-umbellate +
cymelike +, paniclelike +, racemelike +  and spikelike +
2 cm20 mm <br />0.02 m <br /> (5 cm50 mm <br />0.05 m <br />) +
connate +  and free +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
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 +
persistent +
bractlike +
pubescent +  and glabrous +
not swollen +
orthotropous +
accrescent +
curved +  and straight +
erect to deflexed +
bright-yellow +
cylindric +  and urceolate +
accrescent +
fleshy +, indurate +  and membranous +
with extrafloral nectaries +  and not articulate +
0.3 cm3 mm <br />0.003 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Flowering Jul–Sep. +
homostylous +  and 3-carpellate +
Leafl. W. Bot. +
, +  and solid +
slender;stout +
persistent +
Endemic +  and Conservation concern +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
decumbent to erect +  and prostrate +
prostrate +  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 +
chambered +  and solid +
slender +  and stout +
Eriogonum hirtellum +
Eriogonum subg. Oligogonum +
species +
emarginate +  and entire +
1/4 +  and 1/3 +
lobed +  and laciniate +
coriaceous +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
persistent +
membranous +
pubescent +  and glabrous +
sericeous +, lanate +  and tomentose floccose or glabrous +
dioecious +, polygamodioecious +, synoecious +  and polycarpic +
annual +, biennial +  and perennial +
hirtellous +  and glabrescent +
synoecious +, monocarpic +, polycarpic +  and , +
3 +, 2 +  and 1 +
1 cm10 mm <br />0.01 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +