Flora of North America species comparison

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Eriogonum nummulare

Eriogonum scabrellum

Kearney's wild buckwheat, money buckwheat, money or Kearney wild buckwheat, money wild buckwheat, round leaf buckwheat

Westwater buckwheat, Westwater wild buckwheat
Habit Shrubs, spreading or rarely sprawling, not scapose, (1.5–)3–8(–10) × 3–12(–15) dm, tomentose or rarely floccose to glabrate, grayish. Herbs, spreading, annual, 1–3(–5) dm, floccose and scabrellous, greenish to reddish or reddish brown.
Stems

decumbent to spreading, often without persistent leaf bases, up to 1/3 height or more of plant;

caudex stems absent or spreading in moving sand;

aerial flowering stems spreading, slender to stout, solid, not fistulose, 0.5–1 dm, tomentose to floccose.

caudex absent;

aerial flowering stems erect, solid, not fistulose, 0.5–1.5 dm, floccose and scabrellous.
Leaves

cauline, 1 per node;

petiole 0.2–1 cm, tomentose to floccose;

blade broadly oblanceolate to elliptic or, rarely, orbiculate, (0.5–)1–3 × 0.4–1.2(–1.5) cm, densely white-tomentose abaxially, less so and greenish adaxially, margins plane.

basal, sheathing up stems 1–3 cm;

petiole 1–4(–5) cm, floccose;

blade cordate, 1–3(–4) × 1–3(–4) cm, densely white-tomentose abaxially, sparsely floccose and greenish to green adaxially, margins crisped and wavy.
Inflorescences

cymose, open, 5–50 × 5–80 cm;

branches dichotomous proximally, often with involucres racemosely arranged distally, tomentose to thinly floccose, rarely glabrate;

bracts 3, scalelike, linear to triangular, 0.5–6 mm.

cymose, open, spreading, 5–40 × 20–100 cm;

branches scabrellous;

bracts 3, scalelike, 1–1.5 × 0.4–0.9 mm.
Peduncles

absent or erect, 0.5–3 cm, tomentose.

absent.
Involucres

1 per node, turbinate to turbinate-campanulate, 2–3 × 1.5–2.7 mm, tomentose or nearly so;

teeth 5, erect, 0.1–0.4 mm.

horizontal, turbinate, 1.5–2.5 × 1.5–2 mm, scabrellous;

teeth 5, erect, 0.4–0.6 mm.
Flowers

1.5–3 mm;

perianth white, glabrous;

tepals connate proximal 1/4, essentially monomorphic, obovate;

stamens slightly to long-exserted, 2–5 mm;

filaments subglabrous or sparsely puberulent proximally.

1–1.5 mm;

perianth white with greenish midribs, becoming pink to rose or deep red, pustulose;

tepals dimorphic, those of outer whorl obovate, those of inner whorl ovate;

stamens exserted, 1–1.5 mm;

filaments glabrous.
Achenes

light brown, 2–3 mm, glabrous.

light brown to brown, 3-gonous, 2 mm, glabrous.
2n

= 80.

= 40.

Eriogonum nummulare

Eriogonum scabrellum
Phenology Flowering Jul–Oct. Flowering Sep–Nov.
Habitat Sandy to occasionally gravelly washes, flats, and slopes, saltbush and sagebrush communities, pinyon-juniper woodlands Clayey to gravelly washes, flats, and slopes, saltbush, blackbrush, and sagebrush communities, pinyon-juniper woodlands
Elevation 800-2600 m (2600-8500 ft) 1400-2300 m (4600-7500 ft)
Distribution
from FNA
AZ; CA; NV; UT
[WildflowerSearch map]
[BONAP county map]
from FNA
CO; NM; UT
[BONAP county map]
Discussion

Eriogonum nummulare occurs primarily in the Intermountain West from Inyo, Lassen, and Mono counties in California eastward across central and southern Nevada to western and southern Utah. It is found also in northern Mohave and northwestern Coconino counties in Arizona.

This species is the food plant of the pallid dotted-blue butterfly (Euphilotes pallescens pallescens) and the Sand Mountain blue butterfly (Euphilotes pallescens arenamontana) is an unprotected subspecies restricted to Sand Mountain in Churchill County, Nevada, where its host plant, Eriogonum nummulare, currently is subject to continued destruction due to unrestricted off-road vehicle activities.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Eriogonum scabrellum is widely scattered along the Colorado and San Juan river systems. It occurs from Grand Valley of Utah (Grand County) and Colorado (Mesa County), southward to the Lake Powell region of Utah (Garfield and Kane counties), and then to the Four Corners area of Utah (San Juan County), Colorado (Montezuma County), and New Mexico (San Juan County). It recently was collected in Chaco Canyon National Park in New Mexico, and just south of the town of Green River in Emery County, Utah.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 5, p. 250. FNA vol. 5, p. 399.
Parent taxa Polygonaceae > subfam. Eriogonoideae > Eriogonum > subg. Eucycla Polygonaceae > subfam. Eriogonoideae > Eriogonum > subg. Ganysma
Sibling taxa
E. abertianum, E. acaule, E. alatum, E. aliquantum, E. allenii, E. alpinum, E. ammophilum, E. ampullaceum, E. androsaceum, E. anemophilum, E. angulosum, E. annuum, E. apiculatum, E. apricum, E. arborescens, E. arcuatum, E. aretioides, E. argillosum, E. argophyllum, E. arizonicum, E. artificis, E. atrorubens, E. baileyi, E. batemanii, E. bicolor, E. bifurcatum, E. brachyanthum, E. brachypodum, E. brandegeei, E. breedlovei, E. brevicaule, E. butterworthianum, E. caespitosum, E. capillare, E. cernuum, E. chrysops, E. cinereum, E. cithariforme, E. clavatum, E. clavellatum, E. codium, E. collinum, E. coloradense, E. compositum, E. concinnum, E. congdonii, E. contiguum, E. contortum, E. correllii, E. corymbosum, E. covilleanum, E. crocatum, E. cronquistii, E. crosbyae, E. cusickii, E. darrovii, E. dasyanthemum, E. davidsonii, E. deflexum, E. deserticola, E. desertorum, E. diatomaceum, E. diclinum, E. divaricatum, E. douglasii, E. eastwoodianum, E. effusum, E. elatum, E. elegans, E. elongatum, E. ephedroides, E. eremicola, E. eremicum, E. ericifolium, E. esmeraldense, E. evanidum, E. exaltatum, E. exilifolium, E. fasciculatum, E. flavum, E. fusiforme, E. giganteum, E. gilmanii, E. glandulosum, E. gordonii, E. gossypinum, E. gracile, E. gracilipes, E. gracillimum, E. grande, E. greggii, E. gypsophilum, E. havardii, E. heermannii, E. helichrysoides, E. hemipterum, E. heracleoides, E. hieracifolium, E. hirtellum, E. hirtiflorum, E. hoffmannii, E. holmgrenii, E. hookeri, E. howellianum, E. hylophilum, E. incanum, E. inerme, E. inflatum, E. intrafractum, E. jamesii, E. jonesii, E. kelloggii, E. kennedyi, E. kingii, E. lachnogynum, E. lancifolium, E. latens, E. latifolium, E. lemmonii, E. leptocladon, E. leptophyllum, E. libertini, E. lobbii, E. loganum, E. lonchophyllum, E. longifolium, E. luteolum, E. maculatum, E. mancum, E. marifolium, E. mensicola, E. microthecum, E. mitophyllum, E. mohavense, E. molestum, E. mortonianum, E. multiflorum, E. natum, E. nealleyi, E. nervulosum, E. nidularium, E. niveum, E. nortonii, E. novonudum, E. nudum, E. nutans, E. ochrocephalum, E. ordii, E. ostlundii, E. ovalifolium, E. palmerianum, E. panamintense, E. panguicense, E. parishii, E. parvifolium, E. pauciflorum, E. pelinophilum, E. pendulum, E. pharnaceoides, E. plumatella, E. polycladon, E. polypodum, E. prattenianum, E. prociduum, E. pulchrum, E. pusillum, E. pyrolifolium, E. racemosum, E. reniforme, E. ripleyi, E. rixfordii, E. robustum, E. rosense, E. roseum, E. rotundifolium, E. rubricaule, E. rupinum, E. salicornioides, E. saxatile, E. scabrellum, E. scopulorum, E. shockleyi, E. siskiyouense, E. smithii, E. soliceps, E. soredium, E. spathulatum, E. spectabile, E. spergulinum, E. sphaerocephalum, E. strictum, E. subreniforme, E. suffruticosum, E. temblorense, E. tenellum, E. ternatum, E. terrenatum, E. thomasii, E. thompsoniae, E. thornei, E. thurberi, E. thymoides, E. tiehmii, E. tomentosum, E. trichopes, E. tripodum, E. truncatum, E. tumulosum, E. twisselmannii, E. umbellatum, E. ursinum, E. vestitum, E. villiflorum, E. vimineum, E. viridescens, E. viridulum, E. viscidulum, E. visheri, E. watsonii, E. wetherillii, E. wootonii, E. wrightii, E. zionis
E. abertianum, E. acaule, E. alatum, E. aliquantum, E. allenii, E. alpinum, E. ammophilum, E. ampullaceum, E. androsaceum, E. anemophilum, E. angulosum, E. annuum, E. apiculatum, E. apricum, E. arborescens, E. arcuatum, E. aretioides, E. argillosum, E. argophyllum, E. arizonicum, E. artificis, E. atrorubens, E. baileyi, E. batemanii, E. bicolor, E. bifurcatum, E. brachyanthum, E. brachypodum, E. brandegeei, E. breedlovei, E. brevicaule, E. butterworthianum, E. caespitosum, E. capillare, E. cernuum, E. chrysops, E. cinereum, E. cithariforme, E. clavatum, E. clavellatum, E. codium, E. collinum, E. coloradense, E. compositum, E. concinnum, E. congdonii, E. contiguum, E. contortum, E. correllii, E. corymbosum, E. covilleanum, E. crocatum, E. cronquistii, E. crosbyae, E. cusickii, E. darrovii, E. dasyanthemum, E. davidsonii, E. deflexum, E. deserticola, E. desertorum, E. diatomaceum, E. diclinum, E. divaricatum, E. douglasii, E. eastwoodianum, E. effusum, E. elatum, E. elegans, E. elongatum, E. ephedroides, E. eremicola, E. eremicum, E. ericifolium, E. esmeraldense, E. evanidum, E. exaltatum, E. exilifolium, E. fasciculatum, E. flavum, E. fusiforme, E. giganteum, E. gilmanii, E. glandulosum, E. gordonii, E. gossypinum, E. gracile, E. gracilipes, E. gracillimum, E. grande, E. greggii, E. gypsophilum, E. havardii, E. heermannii, E. helichrysoides, E. hemipterum, E. heracleoides, E. hieracifolium, E. hirtellum, E. hirtiflorum, E. hoffmannii, E. holmgrenii, E. hookeri, E. howellianum, E. hylophilum, E. incanum, E. inerme, E. inflatum, E. intrafractum, E. jamesii, E. jonesii, E. kelloggii, E. kennedyi, E. kingii, E. lachnogynum, E. lancifolium, E. latens, E. latifolium, E. lemmonii, E. leptocladon, E. leptophyllum, E. libertini, E. lobbii, E. loganum, E. lonchophyllum, E. longifolium, E. luteolum, E. maculatum, E. mancum, E. marifolium, E. mensicola, E. microthecum, E. mitophyllum, E. mohavense, E. molestum, E. mortonianum, E. multiflorum, E. natum, E. nealleyi, E. nervulosum, E. nidularium, E. niveum, E. nortonii, E. novonudum, E. nudum, E. nummulare, E. nutans, E. ochrocephalum, E. ordii, E. ostlundii, E. ovalifolium, E. palmerianum, E. panamintense, E. panguicense, E. parishii, E. parvifolium, E. pauciflorum, E. pelinophilum, E. pendulum, E. pharnaceoides, E. plumatella, E. polycladon, E. polypodum, E. prattenianum, E. prociduum, E. pulchrum, E. pusillum, E. pyrolifolium, E. racemosum, E. reniforme, E. ripleyi, E. rixfordii, E. robustum, E. rosense, E. roseum, E. rotundifolium, E. rubricaule, E. rupinum, E. salicornioides, E. saxatile, E. scopulorum, E. shockleyi, E. siskiyouense, E. smithii, E. soliceps, E. soredium, E. spathulatum, E. spectabile, E. spergulinum, E. sphaerocephalum, E. strictum, E. subreniforme, E. suffruticosum, E. temblorense, E. tenellum, E. ternatum, E. terrenatum, E. thomasii, E. thompsoniae, E. thornei, E. thurberi, E. thymoides, E. tiehmii, E. tomentosum, E. trichopes, E. tripodum, E. truncatum, E. tumulosum, E. twisselmannii, E. umbellatum, E. ursinum, E. vestitum, E. villiflorum, E. vimineum, E. viridescens, E. viridulum, E. viscidulum, E. visheri, E. watsonii, E. wetherillii, E. wootonii, E. wrightii, E. zionis
Synonyms E. dudleyanum, E. kearneyi, E. kearneyi var. monoense, E. kearneyi subsp. monoense, E. nodosum var. kearneyi, E. nodosum subsp. monoense
Name authority M. E. Jones: Contr. W. Bot. 11: 13. (1903) Reveal: Ann. Missouri Bot. Gard. 55: 74. (1968)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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