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wing buckwheat, wing wild buckwheat
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annual buckwheat, annual wild buckwheat
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| Herbs, monocarpic, 5–20(–25) dm, strigose or glabrous; taproot often chambered. |
Herbs, 5–20 × 5–10 dm, grayish. |
caudex absent; aerial flowering stems usually 1, not fistulose, 2–13 dm, strigose or glabrous. |
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slender, 4–10(–15) dm, floccose to densely tomentose. |
basal and sometimes cauline; basal petiolate, petiole 2–6 cm, stigose to woolly or glabrous, blade linear-lanceolate or lanceolate to oblanceolate to spatulate, (3–)5–20 × 0.3–2 cm, strigose, becoming glabrous and green on both surfaces except for margins and midvein; cauline sessile, blade linear-oblanceolate to lanceolate, 1–9 × 0.3–0.8(–1) cm, similar to basal blade. |
petiole (rosette) 0.3–1.2 cm, or petiole (cauline) 0.2–0.5 cm, tomentose to floccose; blade oblanceolate to oblong, 1–7 × 0.3–1.5 cm, densely tomentose abaxially, floccose adaxially not thickened and auriculate-subclasping proximally; margins entire or slightly revolute. |
2–10 dm; branches strigose or glabrous; bracts semileaflike proximally, linear to linear-lanceolate, 2–9 × 1–3 mm, scalelike distally, triangular, 0.8–5 × 0.5–2 mm. |
3–10 × 2–7 cm; bracts triangular, 1–4 mm. |
erect, straight or curving upward, 0.5–3.5 cm, strigose or glabrous. |
0.1–0.5 cm, tomentose to floccose. |
turbinate to campanulate, 2–4(–4.5) × 2–4(–4.5) mm, strigose or glabrous; teeth 1–1.8 mm. |
turbinate to campanulate, 2.5–4 × 2–3 mm, tomentose to floccose abaxially, glabrous adaxially; teeth 5–6, 0.4–1 mm. |
1.5–2.5 mm in anthesis, 3–6 mm in fruit; perianth yellow to yellowish green, rarely maroon in anthesis, often reddish or maroon in fruit, glabrous; tepals lanceolate; stamens 1.5–3 mm; filaments glabrous. |
1–2.5 mm; perianth white or cream to rose; tepals: those of outer whorl obovate, 1–2 × 0.9–1.5 mm, those of inner whorl narrowly ovate to oblong, 1.5–4 × 1.2–1.8 mm; stamens usually included, 1–2 mm. |
yellowish green to reddish brown, 5–9 mm, glabrous, 3-winged entire length, beakless. |
1.5–2 mm. |
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= 40. |
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Flowering Apr–Nov. |
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Sandy flats, slopes, dunes, and banks, mixed grassland, oak and conifer woodlands |
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(0-)100-1900(-2300) m ((0-)300-6200(-7500) ft) |
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AZ; CO; KS; NE; NM; OK; TX; UT; WY; including Mexico
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CO; KS; MT; ND; NE; NM; OK; SD; TX; WY; Mexico (Chihuahua)
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Varieties 2 (2 in the flora). The mature reddish roots of Eriogonum alatum can be distinctively chambered. The Navajo (Diné) people consider the species to be a “life medicine” (L. C. Wyman and S. K. Harris 1951), using a mixture of shredded roots and water primarily to treat internal ailments. The species is used also as a ceremonial medicine (P. A. Vestal 1952). The Zuni use it as an emetic for stomachaches (S. Camazine and R. A. Bye 1980). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Eriogonum annuum is widespread and common to locally abundant or even weedy on the Great Plains of the central United States and extreme north-central Mexico. It was collected in Sherburne County, Minnesota, in 1982, but that population did not persist. The species was recently found as an introduction at Sandy Hook in Monmouth County, New Jersey (Snyder & McArthur s.n., NY), but its fate there remains to be determined. Unfortunately, this weedy species recently has been introduced into northern Arizona as a roadside wild flower. C. L. Perez et al. (1998) have demonstrated that the seed bank can be rich in seeds of this species, but germination rates are low. The Lakota people traditionally used the annual wild buckwheat as an aid in the treatment of sore mouths in children, seemingly in association with teething (D. J. Rogers 1980). Leaves were used to stain buffalo and deer hides by the Kiowa (P. A. Vestal and R. E. Schultes 1939). Vestal (1952) stated that the species was considered a “life medicine” by the Navajo (Diné) people; it was used also for protection against witches. It is likely that E. annuum was obtained by the Navajo through trade, but it might have been grown locally in historic times where the species recently has been reintroduced. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
1. Flowering stems and inflorescence branches usually strigose; peduncles strigose or nearly so; involucres strigose, rarely glabrous; plants 5-13(-17) dm; n Arizona, Colorado, w Kansas, sw Nebraska, New Mexico, w Texas, e Utah, se Wyoming | var. alatum |
1. Flowering stems and inflorescence branches glabrous or nearly so; peduncles glabrous, occasionally slightly strigose; involucres glabrous; plants 10-20(-25) dm; ne New Mexico, w Oklahoma, n Texas | var. glabriusculum |
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| FNA vol. 5, p. 379. |
FNA vol. 5. |
| Polygonaceae > subfam. Eriogonoideae > Eriogonum > subg. Pterogonum |
Polygonaceae > subfam. Eriogonoideae > Eriogonum > subg. Micrantha |
E. abertianum, E. acaule, 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. 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. 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. 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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| Pterogonum alatum |
E. annuum subsp. cymosum, E. annuum subsp. hitchcockii |
| Torrey: in L. Sitgreaves, Rep. Exped. Zuni Colorado Rivers, 168, plate 8. (1853) |
Nuttall: Trans. Amer. Philos. Soc., n. s. 5: 164. (1835) |
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KS Wildflowers
SW CO Wildflowers
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