Eriogonum concinnum

Reveal

Bull. Torrey Bot. Club 96: 476, fig. 1. 1969.

Common names: Darin’s wild buckwheat
EndemicConservation concern
Treatment appears in FNA Volume 5. Treatment on page 393. Mentioned on page 382.

Herbs, erect, annual, (0.5–) 1–6 (–10) dm, glabrous, green. Stems: caudex absent; aerial flowering-stems erect, usually hollow and fistulose, 0.5–2 dm, glabrous. Leaves basal or sheathing up stems 1–6 cm; petiole 1–10 cm, pilose-hispid; blade subcordate, (0.5–) 1–4 (–6) × (0.5–) 1–5 (–7) cm, pilose-hispid and bright green on both surfaces, margins plane. Inflorescences narrowly cymose, open, 5–80 × 5–35 (–40) cm; branches often fistulose, glabrous; bracts 3, scalelike, 1–4 × 0.5–2 mm. Peduncles deflexed, straight, slender, (0.05–) 0.1–0.25 cm, glabrous. Involucres turbinate, 1.2–1.6 × 1–1.4 mm, glabrous; teeth 5, erect, 0.4–0.6 mm. Flowers 1–2.5 mm; perianth greenish white to reddish, glabrous; tepals monomorphic, oblong; stamens included to exserted, 1–1.5 mm; filaments glabrous. Achenes dark greenish brown to black, 3-gonous, 1.4–1.7 mm, glabrous. 2n = 40.


Phenology: Flowering May–Sep.
Habitat: Sandy to gravelly flats, washes, and slopes, saltbush and sagebrush communities, pinyon-juniper woodlands
Elevation: 1400-2100 m

Discussion

Of conservation concern.

Eriogonum concinnum is locally common on the mesas of the U.S. Department of Energy’s Nevada Test Site east and north of Beatty, Nye County. Although the area is subject to considerable habitat destruction, the species seems to be surviving and is neither threatened nor endangered, although it is properly considered a “sensitive” species given its limited range and the potential for more profound habitat destruction in the area.

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.

... more about "Eriogonum concinnum"
brown;black +
included +  and exserted +
3-gonous +
usually red +  and cream or yellow +
oblong +  and ellipsoid or oval +
James L. Reveal +
Reveal +
deciduous +  and persistent +
stipelike +
Eriogonum sect. Ganysma +
awn-tipped +  and simple +
4 cm40 mm <br />0.04 m <br /> (6 cm60 mm <br />0.06 m <br />) +
5 cm50 mm <br />0.05 m <br /> (7 cm70 mm <br />0.07 m <br />) +
bright green +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
pilose-hispid +
subcordate +
1 cm10 mm <br />0.01 m <br /> (5 cm50 mm <br />0.05 m <br />) +
not awn-tipped +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
glandular +, pubescent +  and glabrous +
scale-like +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
grooved +, disarticulating +  and dichotomous +
not brittle +
scabrellous +
fistulose +
spreading +  and erect +
whorled +, opposite +  and alternate +
Darin’s wild buckwheat +
1400-2100 m +
unisexual +, , +  and bisexual +
not attenuate +
0.1 cm1 mm <br />0.001 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
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 +
Sandy to gravelly flats, washes, and slopes, saltbush and sagebrush communities, pinyon-juniper woodlands +
open +  and cymose +
capitate +  and subcapitate +
racemose +, paniculate +  and cymose-paniculate +
35 cm350 mm <br />0.35 m <br /> (40 cm400 mm <br />0.4 m <br />) +
5 cm50 mm <br />0.05 m <br /> (80 cm800 mm <br />0.8 m <br />) +
cymelike +, paniclelike +, racemelike +  and spikelike +
5 cm50 mm <br />0.05 m <br /> (35 cm350 mm <br />0.35 m <br />) +
connate +  and free +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.16 cm1.6 mm <br />0.0016 m <br />) +
nonmembranous +
0.1 cm1 mm <br />0.001 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
in whorls +, opposite +, alternate +  and rosulate +
marcescent +
persistent +
bractlike +
pubescent +  and glabrous +
not swollen +
orthotropous +
accrescent +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
erect to deflexed +
filiform;capillary +
0.1 cm1 mm <br />0.001 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
greenish white;reddish +
cylindric +  and urceolate +
accrescent +
fleshy +, indurate +  and membranous +
with extrafloral nectaries +  and not articulate +
pilose-hispid +
1 cm10 mm <br />0.01 m <br /> (10 cm100 mm <br />0.1 m <br />) +
Flowering May–Sep. +
homostylous +  and 3-carpellate +
Bull. Torrey Bot. Club +
, +  and solid +
slender;stout +
persistent +
Endemic +  and Conservation concern +
included +  and exserted +
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 +
1 cm10 mm <br />0.01 m <br /> (6 cm60 mm <br />0.06 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 +
chambered +  and solid +
slender +  and stout +
Eriogonum concinnum +
Eriogonum subg. Ganysma +
species +
emarginate +  and entire +
1/5 +  and 1/2 +
coriaceous +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
persistent +
membranous +
pubescent +  and glabrous +
annual +  and perennial +
synoecious +, monocarpic +, polycarpic +  and , +
3 +, 2 +  and 1 +