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Matted wild buckwheat, tall buckwheat, tall wild buckwheat
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bastard-sage, bastard-sage buckwheat, Wright's buckwheat, Wright's wild buckwheat
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| Herbs, erect to spreading, perennial, 1–6 dm, glabrous, often glaucous, grayish. |
Shrubs, subshrubs, or herbs, rarely scapose, (1–)1.5–10 × 1–15(–18) dm or, if matted, 0.1–2.5(–3) × 0.5–3(–5) dm, , lanate to thinly tomentose, or glabrous, grayish to greenish or reddish. |
caudex compact to spreading; aerial flowering stems erect, solid, not fistulose, 0.4–4 dm, glabrous, often glaucous. |
spreading to erect, with or without persistent leaf bases, up to 1/2 or more height of plant; caudex stems absent or spreading, occasionally matted; aerial flowering stems erect to spreading, stout to slender, solid, not fistulose, (0.1–)0.5–4(–6) dm, tomentose, floccose, or glabrous. |
basal or sheathing up stem 3–8 cm; petiole 0.4–4 cm, tomentose; blade elliptic to deltoid or ovate to suborbiculate or orbiculate, 0.3–3 × 0.2–3 cm, densely white-tomentose and grayish on both surfaces, margins plane. |
basal and fasciculate in terminal tufts, or cauline and fasciculate, occasionally 1 per node; petiole 0.02–0.5(–1) cm, tomentose to floccose; blade oblanceolate to broadly elliptic, 0.1–3 × 0.1–1 cm, tomentose to floccose, sometimes subglabrous or glabrous and green adaxially, margins plane, sometimes revolute. |
cymose, open, erect to spreading, 5–40 × 5–40 cm; branches glabrous; bracts 3, scalelike, 1–3 × 0.5–2 mm. |
virgate or cymose with involucres disposed at tips racemosely arranged involucres, rarely capitate, (1–)5–20 × (1–)10–40 cm; branches dichotomous, tomentose, floccose, or glabrous; bracts 3, triangular, scalelike, 0.5–3.5 mm. |
erect or spreading, straight, slender, 0.6–6 cm, glabrous. |
absent. |
turbinate to turbinate-campanulate, 2–4 × 1.5–3(–4) mm, glabrous but tomentose adaxially; teeth 5, erect or nearly so, 0.5–1 mm. |
1 per node, turbinate to narrowly campanulate, (0.7–)1–4 × 1–2.5 mm, tomentose, floccose, or glabrous; teeth 5, erect, 0.3–1 mm. |
1.5–3.5 mm; perianth white to pink with greenish to reddish midribs, becoming pinkish or orange-brown to red, glabrous; tepals dimorphic, those of outer whorl ovate to obovate or cordate to suborbiculate, those of inner whorl narrowly oblong to oblong; stamens included, 1–1.5 mm; filaments sparsely pilose proximally. |
1–4 mm; perianth white to pink or rose, glabrous; tepals connate proximal 1/4, monomorphic, obovate; stamens exserted, 1.5–4 mm; filaments glabrous or sparsely pilose proximally. |
light brown to brown, 3-gonous, 2–3 mm, glabrous. |
light brown to brown, (1–)1.5–3 mm, glabrous. |
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CO; NM; OK; TX; including Mexico
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AZ; CA; NM; NV; TX; UT; including nw Mexico
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Varieties 3 (3 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Varieties 9 (6 in the flora). Eriogonum wrightii is subdivided into several varieties most of which are distinct, although a few have rather indistinct boundaries. Some of the variation has yet to be fully resolved, especially in the var. nodosum complex where, at least in Mexico, one additional expression remains to be named. A clear distinction between var. subscaposum and E. kennedyi is not possible in southern California (see discussion below). Nearly all of the varieties of E. wrightii are in cultivation, although the most elegant (var. olanchense) has yet to be so honored. Few ethnobotanical uses of bastard-sage are reported in the literature. L. C. Wyman and S. K. Harris (1951) noted that the Kayenta Navajo use it (var. wrightii) as an emetic, while M. L. Zigmond (1981) stated that the Kawaiisu used the pounded seeds (probably of var. subscaposum) in a beverage or as a dry meal. Members of the species are food plants for the rare Rita dotted-blue butterfly (Euphilotes rita), the Pacific dotted-blue (E. enoptes), the veined blue (Plebeius neurona), and the Mormon metalmark (Apodemia mormo mormo). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
1. Leaves basal; caudex stem blades 0.3-1.5 × 0.3-1 cm; compact; se Colorado, e New Mexico, w Oklahoma, n and w Texas | var. tenellum |
1. Leaves sheathing up stems; caudex stem blades 0.3-3 × 0.2-3 cm; compact to spreading; Texas | → 2 |
2. Leaf blades elliptic to deltoid, 0.3-1.2 × 0.2-0.7 cm; caudex stems spreading; c Texas | var. ramosissimum |
2. Leaf blades ovate to suborbiculate or orbiculate, 1-3 × 1-3 cm; caudex stems compact to slightly spreading; sw Texas | var. platyphyllum |
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1. Plants loosely to compactly matted or herbs | → 2 |
1. Plants shrubs or subshrubs | → 3 |
2. Plants 0.5-2.5(-3) dm; leaf blades 0.5-1(-1.2) cm; involucres 1.5-4 mm; e and s California,wc Nevada | var. subscaposum |
2. Plants 0.1-0.3(-0.6) dm; leaf blades 0.1-0.25 cm; involucres 0.8-1.7(-2) mm; se California | var. olanchense |
3. Flowering stems and branches grayish, lanate to densely tomentose; sw Arizona, se California | var. nodosum |
3. Flowering stems and inflorescence branches whitish, reddish, or greenish, tomentose to floccose; widespread | → 4 |
4. Petiole bases forming distinct ring around stem; leaf blades 0.2-0.6(-1) × 0.1-0.3(-0.4) cm; s California | var. membranaceum |
4. Petiole bases not forming distinct ring around stem; leaf blades 0.5-3 × 0.2-1 cm; sw United States, Mexico | → 5 |
5. Leaf blades 0.5-1.5 × 0.2-0.5(-0.7) cm; involucres 2-2.5 mm; flowers 2.5-3.5 mm; se California to w Texas | var. wrightii |
5. Leaf blades 1.5-3 × 0.5-1 cm; involucres 3-4 mm; flowers 3-4 mm; c and nw California | var. trachygonum |
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| FNA vol. 5, p. 400. |
FNA vol. 5, p. 289. |
| Polygonaceae > subfam. Eriogonoideae > Eriogonum > subg. Ganysma |
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. 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. 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. 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. zionis |
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E. trachygonum subsp. wrightii |
| Torrey: Ann. Lyceum Nat. Hist. New York 2: 241. (1827) |
Torrey ex Bentham: in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 14: 15. (1856) |
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