Taxa Verbascum thapsus subsp. thapsus Linnaeus Sp. Pl. 1: 177. 1753. Guy L. Nesom Common names: Common mullein grande molène WeedyIntroduced Treatment
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sphaerocephalus var. hirtellus S. F. Blake J. Wash. Acad. Sci. 19: 270. 1929. Guy L. Nesom Endemic Treatment appears in FNA Volume 20. Treatment on page 185. Leaf
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speciesAmphipappus fremontii varietyAmphipappus fremontii var. fremontii Guy L. Nesom IllustratedEndemic Treatment appears in FNA Volume 20. Treatment on page
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(Eschscholtz) A. Gray Gen. Amer. Bor. 2: 178. 1849. John O. Sawyer†, Guy L. Nesom Common names: California coffeeberry Basionym: Rhamnus californica Eschscholtz
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are divided into groups (G. L. Nesom 1989): sect. Pluchea, sect. Amplectifolium G. L. Nesom, and sect. Pterocaulis G. L. Nesom. Among the woody species,
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Gutierrezia texana, Gutierrezia wrightii Lagasca Gen. Sp. Pl., 30. 1816. Guy L. Nesom Etymology: Possibly for Pedro Gutierrez, Spanish nobleman, not specified
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parryi de Candolle in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 5: 301. 1836. Guy L. Nesom Etymology: Greek chaite, long hair, and pappos,
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sphaericus Cassini in F. Cuvier, Dict. Sci. Nat. ed. 2, 56: 214. 1828. Guy L. Nesom Etymology: Greek eu -, good or true, and chiton, tunic, alluding to ‘close-fitting’
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sylvatica Cassini in F. Cuvier, Dict. Sci. Nat. ed. 2, 56: 218. 1828. Guy L. Nesom Etymology: Greek omalo, even or equal, and theke, container, envelope
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Humboldt & Bonpland Pl. Aequinoct. 2: 95, plate 109. 1812. James Henrickson, Guy L. Nesom Common names: Barometer-bush silver-leaf cenizo Etymology: Greek leukos
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Liatris elegans var. kralii (Walter) Michaux Fl. Bor.-Amer. 2: 91. 1803. Guy L. Nesom Common names: Pinkscale or elegant gayfeather IllustratedEndemic Basionym:
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Koanophyllon villosum Arruda in H. Koster, Trav. Brazil, 495. 1816. Guy L. Nesom Common names: Umbrella thoroughwort Etymology: Etymology unknown possibly
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Ionactis linariifolia, Ionactis stenomeres Greene Pittonia 3: 245. 1897. Guy L. Nesom Common names: Ankle-aster Etymology: Greek ion, violet, and aktis, ray
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Astranthium robustum Nuttall Trans. Amer. Philos. Soc., n. s. 7: 312. 1840. Guy L. Nesom Common names: Western-daisy Etymology: Greek astron, star, and anthos
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sonnei, Erigeron eatonii var. villosus A. Gray Notes Compositae, 91. 1880. Guy L. Nesom Common names: Eaton’s fleabane IllustratedEndemic Treatment appears in
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obtusifolia, Ziziphus parryi Miller Gard. Dict. Abr. ed. 4, vol. 3. 1754. Guy L. Nesom Common names: Jujube Etymology: Latinized Arabic vernacular name zizouf
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sativus Linnaeus Sp. Pl. 2: 1011. 1753. , Gen. Pl. ed. 5, 442. 1754. Guy L. Nesom Common names: Melon cucumber Introduced Etymology: Latin name for cucumber
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sect. Eunanus (Bentham) G. L. Nesom & N. S. Fraga (species 1–27, type D. nanus), sect. Pseudoenoe (A. L. Grant) G. L. Nesom & N. S. Fraga (species 28,
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varietyAphanostephus ramosissimus var. humilis (Bentham) B. L. Turner & Birdsong Phytologia 45: 501. 1980. Guy L. Nesom Basionym: Leucopsidium humile Bentham Pl. Hartw
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angustatus, Erigeron reductus var. reductus (Cronquist) G. L. Nesom Phytologia 72: 200. 1992. Guy L. Nesom Common names: California rayless fleabane Endemic Basionym:
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