The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

Inyo buckwheat, Inyo wild buckwheat, onion-flower buckwheat

hawkweed wild buckwheat

Habit Herbs, erect, (1.5–)2.5–4.5(–5) × 1–2 dm, glabrous. Herbs, polycarpic, 4–7 dm, strigose; taproot not chambered.
Stems

caudex absent or nearly so;

aerial flowering stems erect, slender, solid, not fistulose, arising at nodes of caudex branches and at distal nodes of short, nonflowering aerial branches, 1–4 dm, essentially glabrous.

caudex compact;

aerial flowering stems usually 2–5, not fistulose, 3.5–5.5 dm, strigose.

Leaves

basal, occasionally in rosettes;

petiole 1–4(–7) cm, pilose;

blade elliptic-obovate to round-ovate, 1–3(–3.5) × 0.8–2.5 cm, pilose, margins entire, plane.

basal and cauline;

basal petiolate, petiole 0.5–5 cm, strigose, blade oblanceolate to spatulate, 3–15 × 0.5–2(–2.5) cm, sparsely to densely strigose on both surfaces;

cauline sessile, blade oblanceolate, 0.5–5(–6) × 0.3–1 cm, similar to basal blade.

Inflorescences

capitate, 2–3.5(–4) cm wide;

branches absent;

bracts 5–8, essentially scalelike, 1–8 × 1–3 mm.

0.4–1.5(–1.8) dm;

branches strigose;

bracts scalelike, 2–8 × 1–3 mm.

Peduncles

erect, straight, 0.5–3(–3.5) cm, strigose.

Involucres

2–5 or more per cluster, campanulate, 6–8 × 6–8 mm, pilose;

teeth 5–8, erect to slightly spreading, 1–2 mm.

turbinate-campanulate to campanulate, 2.5–4 × 2.5–5 mm, hirsute to strigose;

teeth 0.5–1.5 mm.

Flowers

3–6 mm, including 0.1–0.2 mm stipelike base;

perianth cream to pale yellow, sparsely pubescent abaxially;

tepals monomorphic, obovate to spatulate;

stamens exserted, 3–7 mm;

filaments pilose proximally.

1.5–2.5 mm in anthesis, 3–5 mm in fruit;

perianth yellow in anthesis, reddish in fruit, pilose abaxially;

tepals narrowly ovate;

stamens 2–3 mm;

filaments pilose proximally.

Achenes

light brown, 3–5 mm, glabrous.

yellowish green to light brown, 4.5–6 mm, strigose, 3-winged along distal 1/2, nearly beakless.

2n

= 40.

Eriogonum latens

Eriogonum hieracifolium

Phenology Flowering Jun–Aug. Flowering Jun–Oct.
Habitat Sandy to gravelly granitic slopes and ridges, sagebrush communities, montane to subalpine conifer woodlands Sandy to gravelly, often calcareous flats and slopes, grassland, saltbush, creosote bush, and mesquite communities, oak, juniper, and montane conifer woodlands
Elevation 2600-3400 m (8500-11200 ft) (900-)1300-2600 m ((3000-)4300-8500 ft)
Distribution
from FNA
CA; NV
[WildflowerSearch map]
[BONAP county map]
from FNA
AZ; NM; TX; Mexico (Chihuahua)
Discussion

Eriogonum latens is locally uncommon to rare in the White Mountains of western Nevada (Esmeralda County) and along the eastern slope of the Sierra Nevada in California (Inyo and Mono counties). An isolated population occurs on Waucoba Mountain in the Inyo Mountains. A collection supposedly from Long Valley in Mono County (Noldeke s.n., Jul 1938, CAS) remains to be confirmed as to location.

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

Eriogonum hieracifolium is widely scattered from east-central Arizona (Apache, Gila, Graham, and Navajo counties) and adjacent west-central and southern New Mexico (Bernalillo, Catron, Dona Ana, Eddy, Grant, Lincoln, Otero, and Sierra counties) into Texas (Brewster, Culberson, Jeff Davis, Pecos, and Presidio counties). The species occurs in northeastern Chihuahua, Mexico, as well. Similar plants found near La Linda in Coahuila appear to represent a different taxon, as their vegetative structures are tomentose rather than strigose.

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

Source FNA vol. 5, p. 373. FNA vol. 5, p. 378.
Parent taxa Polygonaceae > subfam. Eriogonoideae > Eriogonum > subg. Oligogonum Polygonaceae > subfam. Eriogonoideae > Eriogonum > subg. Pterogonum
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. 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. 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. 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. 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
Synonyms E. elatum subsp. glabrescens, E. monticola E. leucophyllum subsp. pannosum, Pterogonum hieracifolium
Name authority Jepson: Fl. Calif. 1: 427. (1914) Bentham: in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 14: 6. (1856)
Web links