base, stipelike base 0.1–3 mm; perianth various shades of white, cream, yellow, pink, or reddish, glabrous or pubescent abaxially, glabrous adaxially;
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basally, sulphur yellow, oblong-lanceolate, not carinate, 12.5–16 mm, apex aristate, (glandular-pubescent); filaments greenish yellow; anthers yellow; nectar
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5–2 mm. Flowers 4–6 mm, including 0.4–0.6 mm stipelike base; perianth sulphur yellow, glabrous; tepals monomorphic, obovate; stamens exserted, 4–5 mm; filaments
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distally), usually not contrasting with inner tepals; anthers sulphur yellow or canary yellow; stigma lobes 2–7, white (rarely pale-pink or yellowish white)
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5–1.5 mm. Flowers 5–8 mm, including 1–1.5 mm stipelike base; perianth sulphur yellow, sparsely pubescent abaxially; tepals monomorphic, spatulate to oblong;
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erose-scarious, usually at least some horned. Florets ca. 70–75+; corollas sulphur yellow, outer with abaxial purplish or grayish stripe, 12–16 × 1–1.5 mm. Cypselae
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Flowers (4–) 4.5–6 mm, including 0.6–1 mm stipelike base; perianth sulphur yellow, glabrous; tepals monomorphic, oblong; stamens exserted, 3.5–5 mm; filaments
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8–2 mm. Flowers 3–5 mm, including 0.3–0.6 mm stipelike base; perianth sulphur yellow, glabrous; tepals monomorphic, spatulate to obovate; stamens exserted
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fertile; corollas cream, yellow, or white (showy or rudimentary). Disc-florets 5–200, bisexual, fertile; corollas cream, yellow, or white, tubes shorter
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Lyceum Nat. Hist. New York 2: 241. 1827. James L. Reveal Common names: Sulphur flower IllustratedEndemic Treatment appears in FNA Volume 5. Treatment on
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speciesHeliconia latispatha Bentham The Botany of the Voyage of H.M.S. Sulphur 6:170. 1846. W. John Kress, Alan T. Whittemore IntroducedIllustrated Treatment
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Dog’s mouth Illustrated Basionym: Antirrhinum cyathiferum Bentham Bot. Voy. Sulphur, 40, plate 19. 1844 Synonyms: A. chytrospermum A. Gray Treatment appears
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neuter]; corollas [orange] yellow to pale-yellow or white [purplish]. Disc-florets [5–] 12–25 [–30+], bisexual, fertile; corollas yellow with redbrown nerves
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Club 37: 475. 1910. Paul A. Fryxell†, Steven R. Hill Common names: Yellow fugosia sulphur mallow Basionym: Fugosia drummondii A. Gray Smithsonian Contr. Knowl
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Keil, Jörg Ochsmann Common names: Sicilian star-thistle sulphur-colored Sicilian thistle sulphur knapweed Introduced Treatment appears in FNA Volume 19
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drooping in flower, coiling after flowering. Disc-florets 40–100+; corollas yellow, 3.5–4.5 mm. Cypselae obovoid-oblong, 1–1.5 mm, 8–12-nerved per face, faces
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gracile var. gracile, Eriogonum gracile var. incultum Bentham Bot. Voy. Sulphur, 46. 1844. James L. Reveal Synonyms: Eriogonum vimineum subsp. gracile (Bentham)
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Roy. Bot. Belgique 42: 198. 1906. James L. Reveal Common names: Nevada sulphur flower IllustratedEndemic Treatment appears in FNA Volume 5. Mentioned on
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(Greene) S. Stokes Eriogonum, 110. 1936. James L. Reveal Common names: Modoc sulphur flower IllustratedEndemic Basionym: Eriogonum modocense Greene Pittonia
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Calif. Acad. Sci. 17: 64. 1918. James L. Reveal Common names: Old Baldy sulphur flower IllustratedEndemic Synonyms: Eriogonum umbellatum subsp. minus (I
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varietyEriogonum umbellatum var. umbellatum James L. Reveal Common names: Common sulphur flower IllustratedEndemic Treatment appears in FNA Volume 5. Treatment on
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S. Stokes Eriogonum, 109. 1936. James L. Reveal Common names: Porter’s sulphur flower IllustratedEndemic Basionym: Eriogonum porteri Small Bull. Torrey
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Stokes Leafl. W. Bot. 3: 17. 1941. James L. Reveal Common names: Panamint sulphur flower IllustratedEndemic Treatment appears in FNA Volume 5. Treatment on
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(Nuttall) Reveal Taxon 32: 294. 1983. James L. Reveal Common names: Starry sulphur flower IllustratedEndemic Basionym: Eriogonum ellipticum Nuttall Proc. Acad
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Linnaeus Sp. Pl. 1: 497. 1753. Barbara Ertter, James L. Reveal Common names: Sulphur cinquefoil potentille dressée IllustratedIntroducedWeedy Synonyms: Potentilla
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subfam. Malvoideae genusHibiscus speciesHibiscus denudatus Bentham Bot. Voy. Sulphur, 7, plate 3. 1844. Orland J. Blanchard Jr. Common names: Paleface rose-mallow
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Stokes Leafl. W. Bot. 2: 53. 1937. James L. Reveal Common names: Ferris’s sulphur flower IllustratedEndemic Synonyms: Eriogonum biumbellatum Rydberg Eriogonum
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Reveal Phytologia 86: 156. 2004. James L. Reveal Common names: Spreading sulphur flower Treatment appears in FNA Volume 5. Treatment on page 340. Mentioned
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argophyllum Reveal Phytologia 23: 168. 1972. James L. Reveal Common names: Sulphur Hot Springs wild buckwheat EndemicConservation concern Treatment appears
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Great Basin Naturalist 35: 365. 1976. James L. Reveal Common names: Deseret sulphur flower Endemic Treatment appears in FNA Volume 5. Treatment on page 345
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Reveal Phytologia 86: 146. 2004. James L. Reveal Common names: Ahart’s sulphur flower Treatment appears in FNA Volume 5. Treatment on page 352. Mentioned
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Harvard Pap. Bot. 9: 202. 2004. James L. Reveal Common names: American Valley sulphur flower Endemic Basionym: Eriogonum dumosum Greene Pittonia 3: 199. 1897
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Reveal Phytologia 66: 261. 1989. James L. Reveal Common names: One-eyed sulphur flower Endemic Treatment appears in FNA Volume 5. Treatment on page 348
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Contr. W. Bot. 11: 6. 1903. James L. Reveal Common names: Haussknecht’s sulphur flower Endemic Basionym: Eriogonum haussknechtii Dammer Gartenflora 40:
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puberulent-tomentose; glands 5, yellow to reddish, oblong to reniform, 0.7–1.3 × 1.1–2.6 mm; appendages green-yellow to yellowish or whitish, oblong to
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1–2.5 mm. Flowers (4–) 5–6 mm; perianth cream, whitish, or pale-yellow to greenish yellow, without large reddish spot on midrib. Phenology: Flowering Jun–Oct
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Naturalist 28: 157. 1968. James L. Reveal Common names: Spring-flowering sulphur flower Endemic Treatment appears in FNA Volume 5. Treatment on page 344
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Jones Contr. W. Bot. 11: 5. 1903. James L. Reveal Common names: Donner Pass sulphur flower Endemic Basionym: Eriogonum torreyanum A. Gray Proc. Amer. Acad.
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Heller) S. Stokes Eriogonum, 113. 1936. James L. Reveal Common names: Small’s sulphur flower Endemic Basionym: Eriogonum smallianum A. Heller Bull. S. Calif.
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Contr. W. Bot. 11: 5. 1903. James L. Reveal Common names: American River sulphur flower Endemic Basionym: Eriogonum polyanthum Bentham in A. P. de Candolle
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Vasc. Pl. Pacif. N.W. 2: 135. 1964. James L. Reveal Common names: Kittitas sulphur flower Endemic Basionym: Eriogonum umbellatum subsp. hypoleium Piper Contr
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(Gandoger) Reveal Taxon 17: 532. 1968. James L. Reveal Common names: Golden sulphur flower Endemic Basionym: Eriogonum glaberrimum var. aureum Gandoger Bull
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Phytologia 86: 153. 2004. James L. Reveal Common names: Buffalo Bill’s sulphur flower Treatment appears in FNA Volume 5. Treatment on page 347. Mentioned
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Basin Naturalist 45: 278. 1985. James L. Reveal Common names: Sierra Nevada sulphur flower Endemic Treatment appears in FNA Volume 5. Treatment on page 347
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Basin Naturalist 32: 115. 1972. James L. Reveal Common names: Emperor’s sulphur flower Endemic Treatment appears in FNA Volume 5. Treatment on page 347
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Reveal Phytologia 86: 151. 2004. James L. Reveal Common names: Nelson’s sulphur flower Treatment appears in FNA Volume 5. Treatment on page 348. Mentioned
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Bot. Belgique 42: 198. 1906. James L. Reveal Common names: Yellowstone sulphur flower Endemic Synonyms: Eriogonum rydbergii Greene Treatment appears in
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Reveal Phytologia 86: 154. 2004. James L. Reveal Common names: Sandberg’s sulphur flower Treatment appears in FNA Volume 5. Treatment on page 341. Mentioned
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Reveal Phytologia 86: 147. 2004. James L. Reveal Common names: Sherman Pass sulphur flower Treatment appears in FNA Volume 5. Treatment on page 342. Mentioned
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Munz, Suppl. Calif. Fl., 43. 1968. James L. Reveal Common names: Coville’s sulphur flower Endemic Basionym: Eriogonum covillei Small Bull. Torrey Bot. Club
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