fremontii Amphipappus fremontii var. fremontii Amphipappus fremontii var. spinosus Aphanostephus A cont. Aphanostephus pilosus Aphanostephus ramosissimus
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simple (branched in Tidestromia). Stems without nodal spines (Amaranthus spinosus sometimes with paired nodal spines). Leaves alternate or opposite, exstipulate
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Amaranthus obcordatus, Amaranthus powellii, Amaranthus retroflexus, Amaranthus spinosus, Amaranthus tamaulipensis, Amaranthus torreyi, Amaranthus viscidulus, Amaranthus
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Ceanothus parryi, Ceanothus parvifolius, Ceanothus sanguineus, Ceanothus spinosus, Ceanothus thyrsiflorus, Ceanothus tomentosus, Ceanothus velutinus Clifford
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branched, occasionally simple or nearly so; without nodal spines (except in A. spinosus). Leaves alternate, petiolate; blade rhombic-ovate, ovate, obovate, spatulate
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Lower Taxa Amphipappus fremontii var. fremontii, Amphipappus fremontii var. spinosus Torrey & A. Gray Boston J. Nat. Hist. 5: 108. 1845. Guy L. Nesom Common
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familyAmaranthaceae genusAmaranthus subgenusAmaranthus subg. Amaranthus speciesAmaranthus spinosus Linnaeus Sp. Pl. 2: 991. 1753. Sergei L. Mosyakin, Kenneth R. Robertson
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Nelson Bot. Gaz. 47: 431. 1909 Synonyms: Amphipappus spinosus A. Nelson Amphipappus fremontii subsp. spinosus (A. Nelson) D. D. Keck Treatment appears in FNA
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tribeAsteraceae tribe Cichorieae genusPleiacanthus speciesPleiacanthus spinosus (Nuttall) Rydberg Fl. Rocky Mts., 1069. 1917. L. D. Gottlieb Common names:
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Common names: Mexican devilweed spiny aster Illustrated Basionym: Aster spinosus Bentham Pl. Hartweg., 20. 1839 Synonyms: Leucosyris spinosa (Bentham) Greene
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tribeAsteraceae tribe Cichorieae genusPleiacanthus Show Lower Taxa Pleiacanthus spinosus (Nuttall) Rydberg Fl. Rocky Mts., 1069. 1917. L. D. Gottlieb Common names:
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inflorescence branches, sometimes gathered in proximal glomerules (as in A. spinosus); tepals 5, equal or subequal; stamens 5. Utricles ovoid or subglobose
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familyRhamnaceae genusCeanothus subgenusCeanothus subg. Ceanothus speciesCeanothus spinosus Nuttall in J. Torrey and A. Gray, Fl. N. Amer. 1: 267. 1838. Clifford L
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jack spiny threecornerjack spiny emex WeedyIntroduced Basionym: Rumex spinosus Linnaeus Sp. Pl. 1: 337. 1753 Treatment appears in FNA Volume 5. Treatment
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B Balduina angustifolia P Pleiacanthus spinosus
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integerrimus and C. spinosus (W. L. Jepson 1909–1943, vol. 2; M. Van Rensselaer and H. McMinn 1942). We treat this species as distinct from C. spinosus on the basis
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Occasional, sparsely hirtellous plants may reflect genetic influence of var. spinosus. None. None. window.propertiesFromHigherTaxa=[{"rank":"species","name":"Amphipappus
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include either Munzothamnus blairii (previously S. blairii) or Pleiacanthus spinosus (previously S. spinosa). Without them, Stephanomeria is a well-supported
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Amaranthus retroflexus Amaranthus hybridus Amaranthus powellii Amaranthus spinosus Yevonn Wilson-Ramsey Yevonn Wilson-Ramsey Yevonn Wilson-Ramsey Yevonn Wilson-Ramsey
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