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- purshiana, Frangula rubra Miller Gard. Dict. Abr. ed. 4, vol. 1. 1754. John O. Sawyer†, Guy L. Nesom Common names: Buckthorn Etymology: Probably from Latin6 KB (414 words) - 20:18, 5 November 2020
- smithii, Rhamnus utilis Linnaeus Sp. Pl. 1: 193. 1753. Guy L. Nesom, John O. Sawyer† Common names: Buckthorn nerprun Etymology: Greek rhamnos, prickly shrubs8 KB (368 words) - 20:17, 5 November 2020
- Compt. Rend. Hebd. Séances Acad. Sci. 44: 1141. 1857. Guy L. Nesom, John O. Sawyer† Common names: Chinese buckthorn Introduced Treatment appears in FNA2 KB (108 words) - 19:11, 6 November 2020
- Pallas Reise Russ. Reich. 3: 721. 1776. (as davuricus) Guy L. Nesom, John O. Sawyer† Common names: Dahurian buckthorn IntroducedIllustrated Treatment appears2 KB (105 words) - 19:11, 6 November 2020
- Inst. Akad. Nauk S.S.S.R., Ser. 1, Fl. Sist. Vyssh. Rast. 8: 271. 1949. John O. Sawyer†, Guy L. Nesom Common names: Sierra coffeeberry Endemic Basionym: Rhamnus4 KB (350 words) - 19:13, 6 November 2020
- Candolle) A. Gray ex J. G. Cooper Trans. Amer. Med. Assoc. 10: 228. 1857. John O. Sawyer†, Guy L. Nesom Common names: Cascara Endemic Basionym: Rhamnus purshiana de3 KB (246 words) - 19:10, 6 November 2020
- californica subsp. ursina (Eschscholtz) A. Gray Gen. Amer. Bor. 2: 178. 1849. John O. Sawyer†, Guy L. Nesom Common names: California coffeeberry Basionym: Rhamnus6 KB (473 words) - 19:11, 6 November 2020
- Inst. Akad. Nauk S.S.S.R., Ser. 1, Fl. Sist. Vyssh. Rast. 8: 268. 1949. John O. Sawyer†, Guy L. Nesom Common names: Birchleaf buckthorn Illustrated Basionym:3 KB (310 words) - 20:16, 5 November 2020
- Proc. Calif. Acad. Sci. 2: 37. 1863. (as ilicifolius) Guy L. Nesom, John O. Sawyer† Common names: Hollyleaf redberry Illustrated Synonyms: Rhamnus crocea3 KB (239 words) - 20:12, 5 November 2020
- speciesRhamnus davurica subspeciesRhamnus davurica subsp. davurica Guy L. Nesom, John O. Sawyer† IntroducedIllustrated Treatment appears in FNA Volume 12. Treatment3 KB (332 words) - 20:17, 5 November 2020
- purshiana subsp. anonifolia (Greene) J. O. Sawyer & S. W. Edwards Madroño 54: 173. 2007. (as annonifolia) John O. Sawyer†, Guy L. Nesom Endemic Basionym: Rhamnus2 KB (147 words) - 20:14, 5 November 2020
- (C. B. Wolf) Kartesz & Gandhi Phytologia 76: 449. 1994. Guy L. Nesom, John O. Sawyer† Endemic Basionym: Rhamnus rubra subsp. modocensis C. B. Wolf Rancho2 KB (147 words) - 20:17, 5 November 2020
- (C. B. Wolf) Kartesz & Gandhi Phytologia 76: 449. 1994. Guy L. Nesom, John O. Sawyer† Endemic Basionym: Rhamnus rubra subsp. yosemitana C. B. Wolf Rancho2 KB (147 words) - 20:15, 5 November 2020
- subsp. obtusissima (Greene) Kartesz & Gandhi Phytologia 76: 449. 1994. John O. Sawyer†, Guy L. Nesom Endemic Basionym: Rhamnus obtusissima Greene Leafl. Bot2 KB (142 words) - 20:18, 5 November 2020
- ex Greene) Kartesz & Gandhi Phytologia 76: 449. 1994. Guy L. Nesom, John O. Sawyer† Endemic Basionym: Rhamnus occidentalis Howell ex Greene Pittonia 2:3 KB (150 words) - 20:15, 5 November 2020
- subsp. nevadensis (A. Nelson) Kartesz & Gandhi Phytologia 76: 449. 1994. John O. Sawyer†, Guy L. Nesom Common names: Nevada coffeeberry Endemic Basionym: Rhamnus2 KB (141 words) - 20:15, 5 November 2020
- genusFrangula speciesFrangula rubra subspeciesFrangula rubra subsp. rubra John O. Sawyer†, Guy L. Nesom Endemic Treatment appears in FNA Volume 12. Treatment2 KB (105 words) - 20:13, 5 November 2020
- californica subspeciesFrangula californica subsp. californica Guy L. Nesom, John O. Sawyer† Endemic Synonyms: Rhamnus laurifolia Nuttall Treatment appears in FNA2 KB (124 words) - 20:17, 5 November 2020
- ursina (Greene) Kartesz & Gandhi Phytologia 76: 449. 1994. Guy L. Nesom, John O. Sawyer† Common names: Desert hoary coffeeberry Basionym: Rhamnus ursina Greene4 KB (282 words) - 20:14, 5 November 2020
- cuspidata (Greene) Kartesz & Gandhi Phytologia 76: 449. 1994. Guy L. Nesom, John O. Sawyer† Endemic Basionym: Rhamnus cuspidata Greene Leafl. Bot. Observ. Crit3 KB (214 words) - 20:14, 5 November 2020