Flora of North America species comparison

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Eriogonum hookeri

Eriogonum crocatum

Hooker's buckwheat, Hooker's eriogonum, Hooker's wild buckwheat

Conejo buckwheat, saffron wild buckwheat
Habit Herbs, erect, annual, 1–6 dm, glabrous, glaucous, grayish. Herbs, erect to spreading, not scapose, 3–5 × 5–10 dm, lanate to tomentose.
Stems

caudex absent;

aerial flowering stems erect, solid, not fistulose, 0.1–0.4 dm, glabrous, glaucous.

spreading, usually without persistent leaf bases, up to 1/4 height of plant;

caudex stems matted to spreading;

aerial flowering stems spreading to erect, slender, solid, not fistulose, 0.2–1 dm, lanate to tomentose.
Leaves

basal;

petiole 1–5 cm, tomentose;

blade cordate to subreniform, (1–)2–5 × 2–6 cm, densely white felty-tomentose abaxially, tomentose and grayish adaxially, margins occasionally wavy.

cauline, 1 per node;

petiole 0.3–1.2 cm tomentose;

blade broadly ovate, 1–3(–3.5) × 0.8–2.5(–3) cm, lanate to tomentose.
Inflorescences

cymose, open to diffuse, spreading to subglobose or flat-topped to umbrella-shaped, 5–35 × 5–50 cm;

branches glabrous, glaucous;

bracts 3, scalelike, 1–3 × 0.5–1.5 mm.

cymose-umbellate, 0.5–3 × 3–8 cm;

branches umbellate, lanate to tomentose;

bracts 3, scalelike, triangular, 1–2.5 mm.
Peduncles

absent.

absent.
Involucres

1 per node, broadly campanulate, 3–4 × 3–5 mm, tomentose;

teeth 5–6, erect, 0.5–1 mm.
Flowers

1.5–2 mm;

perianth yellow to reddish yellow, glabrous;

tepals dimorphic, those of outer whorl orbiculate, those of inner whorl narrowly ovate;

stamens mostly included, 1.3–1.5 mm;

filaments glabrous.

5–6 mm, including elongate, rounded, slightly winged, stipelike base;

perianth bright yellow, glabrous;

tepals connate proximally, dimorphic, those of outer whorl narrowly oblong, 3–4 × 0.7–0.9 mm, those of inner whorl oblong to spatulate, 3.5–5 × 1–1.5 mm;

stamens exserted, 3–5 mm;

filaments pilose proximally.
Achenes

light brown, 3-gonous, 2–2.5 mm, glabrous.

brown, 3-gonous, 2.5–3 mm.
Invo

-lucres deflexed, broadly campanulate to hemispheric, 1–2 × 1.5–3(–3.5) mm, glabrous;

teeth 5, erect, 0.5–0.7 mm.

2n

= 40.

= 40.

Eriogonum hookeri

Eriogonum crocatum
Phenology Flowering Jun–Oct. Flowering Apr–Jul.
Habitat Sandy washes, flats, and slopes, saltbush, greasewood, sagebrush, and mountain mahogany communities, pinyon-juniper woodlands Sandstone slopes, oak woodlands
Elevation 1300-2500(-3000) m (4300-8200(-9800) ft) 60-200 m (200-700 ft)
Distribution
from FNA
AZ; CA; CO; ID; NM; NV; OR; UT; WY
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[BONAP county map]
Discussion

Eriogonum hookeri is basically a species of the Intermountain Region of Utah and Nevada, just entering portions of east-central California, southeastern Oregon, southeastern Idaho, southwestern Wyoming, western Colorado, northwestern New Mexico, and northern Arizona. Populations of the species usually are scattered, with the plants rarely common and even less frequently locally weedy.

P. A. Vestal (1940) stated that the Hopi boiled Eriogonum hookeri with mush for flavoring.

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

Of conservation concern.

Eriogonum crocatum is known only from the Conejo Grade area of the Santa Monica Mountains in Ventura County. A population in the Malibu Hills of Los Angeles County sampled by M. E. Jones (26 Apr 1926, DS, POM) has not been rediscovered. The species is rare, and the state of California considers it worthy of protection. Federal action has been long delayed. The species is widely cultivated and is one of the more popular wild buckwheats in the garden. Great care should be taken to prevent its escape from cultivation.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 5, p. 396. FNA vol. 5, p. 325.
Parent taxa Polygonaceae > subfam. Eriogonoideae > Eriogonum > subg. Ganysma 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. 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
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. 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. 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. deflexum var. gilvum, E. deflexum subsp. hookeri E. saxatile var. crocatum
Name authority S. Watson: Proc. Amer. Acad. Arts 14: 295. (1879) Davidson: Bull. S. Calif. Acad. Sci. 23: 17, plate E. (1924)
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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