| Asteraceae B.V. Berchtold & J.S. Presl |
Sonchus C. Linnaeus |
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| Asteraceae B.V. Berchtold & J.S. Presl |
Sonchus asper (C. Linnaeus) J. Hill |
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Sonchus oleraceus var. asper C. Linnaeus |
| Asteraceae B.V. Berchtold & J.S. Presl |
Sonchus laevis D. Villars |
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Sonchus oleraceus C. Linnaeus |
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| Asteraceae B.V. Berchtold & J.S. Presl |
Sonchus oleraceus C. Linnaeus |
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| Asteraceae B.V. Berchtold & J.S. Presl |
Sonchus oleraceus var. |
nom. nudum |
Sonchus oleraceus C. Linnaeus |
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| Asteraceae B.V. Berchtold & J.S. Presl |
Sonchus oleraceus var. asper C. Linnaeus |
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Sonchus asper (C. Linnaeus) J. Hill |
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| Asteraceae B.V. Berchtold & J.S. Presl |
Sphagneticola O. Hoffmann |
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| Asteraceae B.V. Berchtold & J.S. Presl |
Sphagneticola trilobata (C. Linnaeus) J.F. Pruski |
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Silphium trilobatum C. Linnaeus |
| Asteraceae B.V. Berchtold & J.S. Presl |
Symphyotrichum C.G. Nees |
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| Asteraceae B.V. Berchtold & J.S. Presl |
Symphyotrichum laeve (C. Linnaeus) A. Löve & D.B. Löve |
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Aster laevis C. Linnaeus |
| Asteraceae B.V. Berchtold & J.S. Presl |
Symphyotrichum novi-belgii (C. Linnaeus) G.L. Nesom |
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Aster novi-belgii C. Linnaeus |
| Asteraceae B.V. Berchtold & J.S. Presl |
Symphyotrichum subulatum (A. Michaux) G.L. Nesom |
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Aster subulatus A. Michaux |
| Asteraceae B.V. Berchtold & J.S. Presl |
Symphyotrichum tradescantii (C. Linnaeus) G.L. Nesom |
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Aster tradescantii C. Linnaeus |
| Asteraceae B.V. Berchtold & J.S. Presl |
Synedrella J. Gaertner |
nom. cons. |
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| Asteraceae B.V. Berchtold & J.S. Presl |
Synedrella nodiflora (C. Linnaeus) J. Gaertner |
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| Asteraceae B.V. Berchtold & J.S. Presl |
Synedrella nodiflora auct. : B. Huguenin |
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Bidens pilosa C. Linnaeus |
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| Asteraceae B.V. Berchtold & J.S. Presl |
Tagetes C. Linnaeus |
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| Asteraceae B.V. Berchtold & J.S. Presl |
Tagetes anisata M. Lillo ex F. Zelada |
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| Asteraceae B.V. Berchtold & J.S. Presl |
Tagetes patula C. Linnaeus |
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| Asteraceae B.V. Berchtold & J.S. Presl |
Tanacetum C. Linnaeus |
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