Eriogonum microthecum var. schoolcraftii

Reveal

Phytologia 86: 138. 2004.

Common names: Schoolcraft’s wild buckwheat
Treatment appears in FNA Volume 5. Treatment on page 247. Mentioned on page 243, 248.

Shrubs, 3–8 × (4–) 5–10 (–12) dm, floccose. Stems: caudex absent; aerial flowering-stems 0.5–1.5 dm, floccose. Leaves: blade 1.5–3.5 × 0.5–1.2 cm, densely reddish-brown-tomentose abaxially, floccose adaxially, margins not revolute. Inflorescences 1–8 cm; branches floccose. Involucres 2.5–4 mm, floccose. Flowers 2.5–3 mm; perianth yellow. Achenes 2.5–3 mm.


Phenology: Flowering Jul–Sep.
Habitat: Sandy to rocky soil, sagebrush communities, pinyon-juniper woodlands
Elevation: 1400-2200 m

Discussion

Variety schoolcraftii is known only from low desert hills west of Doyle, Lassen County, California, and on Seven Lake Mountain, Washoe County, Nevada. It has the potential of being an attractive garden shrub.

Selected References

None.

Lower Taxa

None.

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included +  and exserted +
3-gonous +
usually red +  and cream or yellow +
oblong +  and ellipsoid or oval +
acute;obtuse or rounded +
James L. Reveal +
Reveal +
deciduous +  and persistent +
stipelike +
Undefined subg. Eucycla +
papillate +
awn-tipped +  and simple +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
floccose +  and reddish-brown-tomentose +
linear;obovate +
0.5 cm5 mm <br />0.005 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
not awn-tipped +
leaflike +  and semileaflike +
glandular +, pubescent +  and glabrous +
linear +  and triangular +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
gray +, green +, reddish-tomentose to floccose or glabrate +  and brownish +
not brittle +
spreading +  and erect +
scabrellous +
ridged +, angled +  and round +
whorled +, opposite +  and alternate +
Schoolcraft’s wild buckwheat +
Calif. +  and Nev. +
1400-2200 m +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
unisexual +, , +  and bisexual +
not attenuate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 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 +
Sandy to rocky soil, sagebrush communities, pinyon-juniper woodlands +
reduced +
capitate +  and subcapitate +
6 cm60 mm <br />0.06 m <br /> (12 cm120 mm <br />0.12 m <br />) +
10 cm100 mm <br />0.1 m <br /> (13 cm130 mm <br />0.13 m <br />) +
dense +  and diffuse +
0.5 cm5 mm <br />0.005 m <br /> (6 cm60 mm <br />0.06 m <br />) +
1 cm10 mm <br />0.01 m <br /> (8 cm80 mm <br />0.08 m <br />) +
1 cm10 mm <br />0.01 m <br /> (10 cm100 mm <br />0.1 m <br />) +
connate +  and free +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
nonmembranous +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
in whorls +, opposite +, alternate +  and rosulate +
persistent +
bractlike +
pubescent +  and glabrous +
lobed +, undulate +, crisped +, crenulate +  and entire +
not swollen +
orthotropous +
accrescent +
curved +  and straight +
tomentose;floccose +
erect to deflexed +
0.3 cm3 mm <br />0.003 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
cylindric +  and urceolate +
accrescent +
fleshy +, indurate +  and membranous +
with extrafloral nectaries +  and not articulate +
tomentose +  and floccose or glabrous +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Flowering Jul–Sep. +
homostylous +  and 3-carpellate +
, +  and solid +
slender;stout +
persistent +
Illustrated +  and Endemic +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 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 +
chambered +  and solid +
slender +  and stout +
Eriogonum microthecum var. schoolcraftii +
Eriogonum microthecum +
variety +
emarginate +  and entire +
0 +  and 1/2 +
1/5 +  and 2/5 +
oblong +  and obovate +
coriaceous +
0.1 cm1 mm <br />0.001 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
persistent +
membranous +
pubescent +  and glabrous +
synoecious +, monocarpic +, polycarpic +  and , +
3 +, 2 +  and 1 +