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Panamint Mountain buckwheat, Panamint Mountain wild buckwheat

Mount Rose wild buckwheat, rosy buckwheat, rosy wild buckwheat

Habit Herbs, erect, 1.5–3 × 1–4 dm, tomentose, brownish. Herbs, matted, scapose, 0.2–1(–1.3) × 0.5–5 dm, glandular-hairy, greenish.
Stems

slightly spreading to erect, without persistent leaf bases, up to 1/5 height of plant;

caudex stems absent;

aerial flowering stems erect, slender, solid, not fistulose, 0.5–1.5 dm, tomentose.

matted, with persistent leaf bases, up to 1/5 height of plant;

caudex stems matted;

aerial flowering stems scapelike, weakly erect to erect, slender, solid, not fistulose, 0.1–0.9(–1.1) dm, densely glandular-hairy.

Leaves

basal, 1 per node;

petiole 1–5 cm, tomentose;

blade elliptic to ovate or obovate, 1.5–4 × 1–2.5 cm, white-tomentose abaxially, less so and often greenish adaxially, margins plane.

basal, fasciculate in terminal tufts;

petiole 0.4–2 cm, tomentose, sometimes also glandular;

blade oblanceolate or broadly elliptic to oval, 0.4–2.5 × (0.15–)0.25–1.6 cm, densely white-tomentose and glandular on both surfaces or densely white-tomentose abaxially and greenish-tomentose adaxially, margins plane.

Inflorescences

cymose with involucres racemosely disposed at tips, (10–)12–20 × 1–5 cm;

branches dichotomous, tomentose;

bracts 3, scalelike, narrowly triangular, and 1–4 mm, or leaflike, elliptic to oval, and 5–15 × 5–15 mm.

capitate, 0.6–1.5 cm;

branches absent;

bracts 3, scalelike, triangular, 1–3.5 mm.

Peduncles

absent.

absent.

Involucres

1 per node, turbinate, 3–5 × 2–4 mm, tomentose;

teeth 5, erect, 0.4–0.8 mm.

3–6 per cluster, turbinate to campanulate, (2.5–)3–5(–6) × 2.5–4(–6) mm, rigid, glandular and sparsely hairy;

teeth 5–8, erect, 0.7–1.4 mm.

Flowers

3.5–5 mm;

perianth white to whitish brown, glabrous;

tepals connate proximal 1/4, monomorphic, oblanceolate;

stamens exserted, 3–7 mm;

filaments pilose proximally.

2–4 mm;

perianth bright yellow to reddish yellow, occasionally cream, glabrous or glandular;

tepals connate proximally, monomorphic, obovate or oblong;

stamens exserted, 3–5.5 mm;

filaments glabrous or sparsely pilose proximally.

Achenes

light brown, 2.5–3 mm, glabrous.

light brown, 1.5–3.5 mm, glabrous.

Eriogonum panamintense

Eriogonum rosense

Phenology Flowering May–Oct.
Habitat Rocky to gravelly slopes and ridges, sagebrush and mountain mahogany communities, pinyon-juniper and montane conifer woodlands
Elevation (1600-)1800-2900 m ((5200-)5900-9500 ft)
Distribution
from FNA
AZ; CA; NV
[WildflowerSearch map]
[BONAP county map]
from FNA
CA; NV; Calif and Nev
[WildflowerSearch map]
[BONAP county map]
Discussion

Eriogonum panamintense is widely scattered in the desert ranges from the southern tip of the White Mountains in Inyo County to the New York Mountains of San Bernardino County, California, eastward across Nevada in the Magruder and Silver Peak (Esmeralda County), Grapevine (Nye County), and Spring (Charleston) mountains (Clark County) of Nevada, on the Hualapai Mountains south of Kingman, and on Mt. Bangs south of Littlefield, Mohave County, Arizona. The Panamint Mountain wild buckwheat typically grows at elevations in California higher than does E. rupinum, but in Nevada their elevation ranges overlap, as in the Magruder Mountains and near Westgard Pass in the White Mountains.

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

Varieties 2 (2 in the flora).

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

Key
1. Leaf blades oblanceolate to elliptic, (0.15-)0.25-0.6(-1) cm wide; involucres (2.5-)3-4(-4.5) × 2.5-3.5 mm; flowers 2-3 mm; tepals obovate; achenes 1.5-2.5 mm; Sierra Nevada of California and adjacent desert ranges of wc Nevada
var. rosense
1. Leaf blades broadly elliptic to oval, 0.5-1.6 cm wide; involucres (2.5-)3-5(-6) × 3-5(-6) mm; flowers (2.5-)3-4 mm; tepals oblong; achenes (2.5-)3-3.5 mm; desert ranges, Nevada
var. beatleyae
Source FNA vol. 5, p. 295. FNA vol. 5, p. 279.
Parent taxa Polygonaceae > subfam. Eriogonoideae > Eriogonum > subg. Eucycla Polygonaceae > subfam. Eriogonoideae > Eriogonum > subg. Eucycla
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. nummulare, E. nutans, E. ochrocephalum, E. ordii, E. ostlundii, E. ovalifolium, E. palmerianum, 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. 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
Subordinate taxa
E. rosense var. beatleyae, E. rosense var. rosense
Synonyms E. racemosum var. desertorum, E. reliquum
Name authority C. V. Morton: J. Wash. Acad. Sci. 25: 308. (1935) A. Nelson & P. B. Kennedy: Proc. Biol. Soc. Wash. 19: 36. (1906)
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