Eriogonum kennedyi var. purpusii

(Brandegee) Reveal in P. A. Munz

in P. A. Munz, Suppl. Calif. Fl., 67. 1968.

Common names: Purpus wild buckwheat
EndemicConservation concern
Basionym: Eriogonum purpusii Brandegee Bot. Gaz. 27: 457. 1899 (as purpusi)
Synonyms: Eriogonum kennedyi subsp. purpusii (Brandegee) Munz
Treatment appears in FNA Volume 5. Treatment on page 294. Mentioned on page 292.

Herbs, densely matted, 0.4–1.2 × 1–3 dm. Leaf-blades elliptic, (0.25–) 0.3–0.6 × 0.15–0.35 cm, white-tomentose on both surfaces, margins not revolute. Scapes 0.4–1 cm, glabrous or rarely floccose. Involucres 1.5–2 mm, glabrous or sparsely tomentose. Flowers 2–2.5 mm. Achenes 2.5–3 mm.


Phenology: Flowering May–Jul.
Habitat: Sandy flats and slopes, mixed sagebrush and grassland communities, pinyon, juniper, and Jeffrey pine woodlands
Elevation: 1500-2500 m

Discussion

Variety purpusii differs from other varieties of the species in its distribution disjunct to the north and east, and its more arid, desert-like habitat. It is common in Inyo and southern Mono counties of California, with scattered populations known near Inyokern in Kern County. In Nevada, it is known only from the Orchard Springs area of Esmeralda County. The bright white tomentum of the leaves is distinctive, and the low mats are sometimes used for dried decorations. Purpus wild buckwheat is an excellent rock-garden plant.

Selected References

None.

Lower Taxa

None.

"/2" 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.

light-brown;brown +
included +  and exserted +
3-gonous +
usually red +  and cream or yellow +
oblong +  and ellipsoid or oval +
acute;obtuse or rounded +
James L. Reveal +
(Brandegee) Reveal in P. A. Munz +
deciduous +  and persistent +
stipelike +
Eriogonum purpusii +
papillate +
awn-tipped +  and simple +
1 cm10 mm <br />0.01 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
white +, brownish +  and grayish +
0.2 cm2 mm <br />0.002 m <br /> (1 cm10 mm <br />0.01 m <br />) +
reddish-white-tomentose +
oblong;elliptic;oblong;elliptic;oblanceolate +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
not awn-tipped +
leaflike +  and semileaflike +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
glandular +, pubescent +  and glabrous +
triangular +  and scale-like +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
grooved +, branched +  and open +
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 +
Purpus wild buckwheat +
Calif. +  and Nev. +
1500-2500 m +
pubescent +  and glabrous +
unisexual +, , +  and bisexual +
not attenuate +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 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 flats and slopes, mixed sagebrush and grassland communities, pinyon, juniper, and Jeffrey pine woodlands +
reduced +
open +, virgate +, umbellate +, cymose-umbellate +  and cymose +
dense +  and diffuse +
cymelike +, paniclelike +, racemelike +  and spikelike +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
connate +  and free +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
tomentose +  and glabrous +
turbinate +  and turbinate-campanulate +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
white-tomentose +
0.15cm;0.35cm +
in whorls +, opposite +, alternate +  and rosulate +
persistent +
bractlike +
pubescent +  and glabrous +
revolute +  and plane +
not swollen +
orthotropous +
accrescent +
curved +  and straight +
erect to deflexed +
white;pink or rose +
glabrous +, pubescent +  and glandular +
cylindric +  and urceolate +
accrescent +
fleshy +, indurate +  and membranous +
with extrafloral nectaries +  and not articulate +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Flowering May–Jul. +
homostylous +  and 3-carpellate +
in P. A. Munz, Suppl. Calif. Fl., +
, +  and solid +
slender;stout +
floccose +  and glabrous +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
persistent +
Endemic +  and Conservation concern +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
decumbent to erect +  and prostrate +
erect +, decumbent +  and spreading +
glandular +, pubescent +  and glabrous +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
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 kennedyi subsp. purpusii +
chambered +  and solid +
slender +  and stout +
Eriogonum kennedyi var. purpusii +
Eriogonum kennedyi +
variety +
emarginate +  and entire +
0 +  and 1/2 +
oblanceolate +  and elliptic or obovate +
coriaceous +
erect +  and spreading +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
persistent +
membranous +
pubescent +  and glabrous +
reddish +  and grayish +
herb +  and matted +
sparsely floccose +  and tomentose +
synoecious +, monocarpic +, polycarpic +  and , +
3 +, 2 +  and 1 +