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Douglas' buckwheat, Douglas' wild buckwheat
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Meteor Crater wild buckwheat, Yavapai County buckwheat
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| Herbs, matted, occasionally polygamodioecious, 0.4–1.5 × 0.5–6 dm, thinly tomentose to glabrate. |
Subshrubs, spreading and matted, not scapose, 0.8–1.2(–1.5) × 1–2.5(–3) dm, grayish- or reddish-tomentose to floccose, mostly reddish. |
caudex spreading; aerial flowering stems erect or nearly so, slender, solid, not fistulose, arising at nodes of caudex branches and at distal nodes of short, nonflowering aerial branches, 0.4–1.2 dm, with a whorl of 4–8 leaflike bracts ca. midlength, similar to leaf blades, 0.3–1.5 × 0.1–0.3 cm. |
slightly spreading or erect, often with persistent leaf bases, up to 1/4 height of plant; caudex stems absent or compact; aerial flowering stems spreading to erect, slender, solid, not fistulose, 0.1–0.5(–0.6) dm, slightly tomentose to floccose. |
in basal rosettes; petiole 0.05–0.5(–1) cm, tomentose; blade oblanceolate or elliptic to spatulate, 0.4–1.5(–1.9) × 0.1–0.5 cm, lanate on both surfaces, or tomentose abaxially and slightly less so and greenish adaxially, margins entire, plane. |
cauline, 1 per node or fasciculate; petiole 0.1–0.2 cm, tomentose; blade oblanceolate to narrowly elliptic, 0.5–0.8(–1) × 0.1–0.2 cm, densely white-tomentose adaxially, floccose and greenish adaxially, margins slightly revolute or merely thickened. |
capitate, 0.8–1.5 cm wide; branches absent; bracts absent immediately below involucre. |
cymose, usually compact, 0.5–1.5 × 0.1–2(–25) cm; branches dichotomous, sparsely tomentose to floccose; bracts 3, scalelike, linear, 1–1.5 mm. |
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absent. |
1 per node, turbinate to turbinate-campanulate, 2.5–3.5 × 2–2.5 mm; teeth 6–14, lobelike, strongly reflexed, 1.5–4(–6) mm. |
1 per node, narrowly turbinate, 1.5–3 × 1–1.5 mm, floccose; teeth 5, erect, 0.3–0.5 mm. |
4–9 mm, including 0.7–2 mm stipelike base; perianth yellow, cream, or ochroleucous to rose-red, sparsely to densely villous abaxially; tepals monomorphic, obovate; stamens exserted, 4–6 mm; filaments pilose proximally. |
1.5–2(–2.5) mm; perianth white to rose, glabrous; tepals connate proximal 1/5, dimorphic, those of outer whorl nearly orbiculate, 2–2.5 mm wide, apex slightly notched, those of inner whorl oblanceolate, 1.5–2 mm wide; stamens slightly exserted, 2–3 mm; filaments pilose proximally. |
light brown, 3–4.5 mm, glabrous except for pubescent beak. |
light brown, 2–2.5 mm, glabrous except for papillate beak. |
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Flowering Aug–Nov. |
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Gravelly to rocky volcanic soil and outcrops, blackbrush and sagebrush communities, juniper or pinyon-juniper woodlands |
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(1000-)1600-2100 m ((3300-)5200-6900 ft) |
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CA; NV; OR; WA
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AZ |
Varieties 3 (3 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Eriogonum pulchrum occurs as a series of scattered populations north of the Mogollon Rim from northeastern Mohave County, eastward into Apache, Coconino, and Navajo counties; it is found also in northern Yavapai County. It is clearly related to E. ericifolium but is morphologically more distinct from that species than E. thornei is from E. ericifolium. The recognition of E. pulchrum at species rank is a logical extension of the treatment given to Thorne’s wild buckwheat by L. M. Shultz (1998). The species is occasionally seen in cultivation. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
1. Leaf blades tomentose abaxially, less so adaxially, narrowly oblanceolate to spatulate; flowers 5-9 mm; e Washington, ne Oregon | var. douglasii |
1. Leaf blades usually densely lanate on both surfaces, elliptic to spatulate; flowers 4-8 mm; s Oregon, ne California, n Nevada | → 2 |
2. Flowers 4-5(-6) mm; s Oregon, ne California, nw Nevada | var. meridionale |
2. Flowers 5-8 mm; ne Nevada | var. elkoense |
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| FNA vol. 5, p. 363. |
FNA vol. 5, p. 254. |
| Polygonaceae > subfam. Eriogonoideae > Eriogonum > subg. Oligogonum |
Polygonaceae > subfam. Eriogonoideae > Eriogonum > subg. Eucycla |
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. 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 |
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. 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 |
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| E. caespitosum subsp. douglasii |
E. ericifolium subsp. pulchrum, E. ericifolium var. pulchrum, E. mearnsii var. pulchrum, E. microthecum subsp. pulchrum |
| Bentham: in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 14: 9. (1856) |
Eastwood: Proc. Calif. Acad. Sci., ser. 4, 20: 139. (1931) |
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CA
OR
WA
Flora NW
PNW Herbaria
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iNaturalist
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