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Cithara buckwheat, Cithara wild buckwheat

Gilman's buckwheat, Gilman's wild buckwheat

Habit Herbs, spreading to erect, 2–3(–5) dm, glabrous or tomentose, greenish or reddish. Herbs, cespitose or pulvinate, occasionally scapose, 0.1–0.5 × 1–3 dm, tomentose.
Stems

aerial flowering stems erect, 0.5–1 dm, glabrous or tomentose.

spreading, with persistent leaf bases, up to 1/5 height of plant;

caudex stems matted;

aerial flowering stems scapelike, spreading to erect, slender, solid, not fistulose, 0.1–0.2 dm, tomentose.

Leaves

basal and sometimes cauline;

basal: petiole 1–5 cm, tomentose to floccose, often slightly winged, blade oblanceolate or elliptic to ovate or nearly rounded, 1–2 × 0.5–1.5(–2) cm, tomentose abaxially, floccose to glabrate and grayish to greenish adaxially;

cauline: petiole 0.5–2 cm, floccose, blade elliptic, 0.3–1 cm × 0.2–0.7 cm, similar to basal blade.

basal, 1 per node;

petiole 0.2–0.5 cm, tomentose;

blade elliptic, 0.2–0.4 × 0.1–0.2 cm, tomentose, margins plane.

Inflorescences

cymose, distally uniparous due to suppression of secondary branches, open, 5–25 × 5–25 cm;

branches usually inwardly curved, glabrous or tomentose;

bracts 0.5–2.5 × 0.5–2 mm.

cymose-umbellate or capitate, (0.4–)0.8–1.5 × 0.5–1.5 cm;

branches umbellate, tomentose;

bracts 3, scalelike, triangular to linear-lanceolate, 1–5 mm.

Peduncles

absent.

spreading, 0.1–0.3(–0.5) cm, tomentose.

Involucres

somewhat appressed to branches, turbinate, 2.5–3 × 1.5–2 mm, glabrous;

teeth 5, erect, 0.2–0.4 mm.

1 per node, turbinate, 1.5–2 × 1–1.5 mm, tomentose;

teeth 5, erect, 0.4–0.7 mm.

Flowers

1.5–2 mm;

perianth white to rose, glabrous;

tepals monomorphic, oblong-obovate;

stamens included, 1–1.5 mm;

filaments pilose proximally.

3.5–5 mm;

perianth yellowish, with reddish spot, glabrous;

tepals connate proximally, dimorphic, those of outer whorl orbiculate and globose, 3–4 × 3–4 mm, those of inner whorl oblanceolate, 3.5–5 × 1–1.5 mm;

stamens exserted, 3–4 mm;

filaments pubescent proximally.

Achenes

brown, 3-gonous, 1–1.5 mm.

brown, 2.5–3 mm, glabrous.

Eriogonum cithariforme

Eriogonum gilmanii

Phenology Flowering May–Sep.
Habitat Limestone gravelly to rocky slopes and ridges, sagebrush communities, pinyon-juniper woodlands
Elevation 1500-2000 m (4900-6600 ft)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[BONAP county map]
Discussion

Varieties 2 (2 in the flora).

The graceful, upwardly curved branch segments of Eriogonum cithariforme generally are distinctive in older plants, although an occasional individual of E. davidsonii may have this feature. A distinction between E. cithariforme and E. roseum also is troublesome, as in young material the curved branch segments are not always obvious.

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

Eriogonum gilmanii is a rare, localized species. It is known from the Cottonwood, Last Chance, and Panamint mountains of Inyo County.

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

Key
1. Flowering stems and inflorescence branches tomentose
var. cithariforme
1. Flowering stems and inflorescence branches glabrous
var. agninum
Source FNA vol. 5, p. 424. FNA vol. 5, p. 324.
Parent taxa Polygonaceae > subfam. Eriogonoideae > Eriogonum > subg. Oregonium 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. 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. 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. 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
Subordinate taxa
E. cithariforme var. agninum, E. cithariforme var. cithariforme
Synonyms E. gracile var. cithariforme, E. vimineum var. cithariforme
Name authority S. Watson: Proc. Amer. Acad. Arts 23: 266. (1888) S. Stokes: Leafl. W. Bot. 3: 16. (1941)
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