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- fremontii Amphipappus fremontii var. fremontii Amphipappus fremontii var. spinosus Aphanostephus A cont. Aphanostephus pilosus Aphanostephus ramosissimus259 bytes (124 words) - 15:35, 17 July 2020
- simple (branched in Tidestromia). Stems without nodal spines (Amaranthus spinosus sometimes with paired nodal spines). Leaves alternate or opposite, exstipulate8 KB (586 words) - 23:00, 5 November 2020
- Amaranthus obcordatus, Amaranthus powellii, Amaranthus retroflexus, Amaranthus spinosus, Amaranthus tamaulipensis, Amaranthus torreyi, Amaranthus viscidulus, Amaranthus2 KB (180 words) - 23:01, 5 November 2020
- Ceanothus parryi, Ceanothus parvifolius, Ceanothus sanguineus, Ceanothus spinosus, Ceanothus thyrsiflorus, Ceanothus tomentosus, Ceanothus velutinus Clifford14 KB (267 words) - 20:12, 5 November 2020
- branched, occasionally simple or nearly so; without nodal spines (except in A. spinosus). Leaves alternate, petiolate; blade rhombic-ovate, ovate, obovate, spatulate26 KB (1,309 words) - 23:01, 5 November 2020
- Lower Taxa Amphipappus fremontii var. fremontii, Amphipappus fremontii var. spinosus Torrey & A. Gray Boston J. Nat. Hist. 5: 108. 1845. Guy L. Nesom Common2 KB (110 words) - 19:28, 6 November 2020
- familyAmaranthaceae genusAmaranthus subgenusAmaranthus subg. Amaranthus speciesAmaranthus spinosus Linnaeus Sp. Pl. 2: 991. 1753. Sergei L. Mosyakin, Kenneth R. Robertson5 KB (541 words) - 23:01, 5 November 2020
- Nelson Bot. Gaz. 47: 431. 1909 Synonyms: Amphipappus spinosus A. Nelson Amphipappus fremontii subsp. spinosus (A. Nelson) D. D. Keck Treatment appears in FNA3 KB (135 words) - 21:02, 5 November 2020
- tribeAsteraceae tribe Cichorieae genusPleiacanthus speciesPleiacanthus spinosus (Nuttall) Rydberg Fl. Rocky Mts., 1069. 1917. L. D. Gottlieb Common names:4 KB (326 words) - 20:53, 5 November 2020
- Common names: Mexican devilweed spiny aster Illustrated Basionym: Aster spinosus Bentham Pl. Hartweg., 20. 1839 Synonyms: Leucosyris spinosa (Bentham) Greene2 KB (110 words) - 19:25, 6 November 2020
- tribeAsteraceae tribe Cichorieae genusPleiacanthus Show Lower Taxa Pleiacanthus spinosus (Nuttall) Rydberg Fl. Rocky Mts., 1069. 1917. L. D. Gottlieb Common names:3 KB (243 words) - 20:53, 5 November 2020
- inflorescence branches, sometimes gathered in proximal glomerules (as in A. spinosus); tepals 5, equal or subequal; stamens 5. Utricles ovoid or subglobose4 KB (377 words) - 23:01, 5 November 2020
- familyRhamnaceae genusCeanothus subgenusCeanothus subg. Ceanothus speciesCeanothus spinosus Nuttall in J. Torrey and A. Gray, Fl. N. Amer. 1: 267. 1838. Clifford L3 KB (238 words) - 20:14, 5 November 2020
- jack spiny threecornerjack spiny emex WeedyIntroduced Basionym: Rumex spinosus Linnaeus Sp. Pl. 1: 337. 1753 Treatment appears in FNA Volume 5. Treatment3 KB (252 words) - 23:07, 5 November 2020
- B Balduina angustifolia P Pleiacanthus spinosus49 bytes (6 words) - 18:57, 16 December 2019
- 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 basis4 KB (350 words) - 20:16, 5 November 2020
- Occasional, sparsely hirtellous plants may reflect genetic influence of var. spinosus. None. None. window.propertiesFromHigherTaxa=[{"rank":"species","name":"Amphipappus2 KB (114 words) - 21:02, 5 November 2020
- include either Munzothamnus blairii (previously S. blairii) or Pleiacanthus spinosus (previously S. spinosa). Without them, Stephanomeria is a well-supported11 KB (983 words) - 20:53, 5 November 2020
- Amaranthus retroflexus Amaranthus hybridus Amaranthus powellii Amaranthus spinosus Yevonn Wilson-Ramsey Yevonn Wilson-Ramsey Yevonn Wilson-Ramsey Yevonn Wilson-Ramsey184 bytes (0 words) - 23:00, 19 November 2020