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 Image: Basionym: Genus Basionym: Notes:

1. Xanthium varians Greene Xanthium varians Greene

2. Xanthium varians Greene Xanthium varians Greene Xanthium

3. Xanthium affine Greene Xanthium affine Greene

4. Xanthium affine Greene Xanthium affine Greene Xanthium

5. Wyethia lanceolata Howell Wyethia lanceolata Howell Wyethia

6. Wyethia lanceolata Howell Wyethia lanceolata Howell

7. Wyethia amplexicaulis Nutt. ssp. major Piper Wyethia amplexicaulis Nutt. ssp. major Piper Wyethia

8. Wyethia amplexicaulis Nutt. ssp. major Piper Wyethia amplexicaulis Nutt. ssp. major Piper

9. Wyethia amplexicaulis (Nutt.) Nutt. ssp. major Piper Wyethia amplexicaulis (Nutt.) Nutt. ssp. major Piper

10. Wyethia amplexicaulis (Nutt.) Nutt. ssp. major Piper Wyethia amplexicaulis (Nutt.) Nutt. ssp. major Piper Wyethia

11. Troximon heterophyllum Greene var. glabratum Suksdorf Troximon heterophyllum Greene var. glabratum Suksdorf

12. Troximon heterophyllum Greene var. glabratum Suksdorf Troximon heterophyllum Greene var. glabratum Suksdorf Troximon

13. Troximon heterophyllum Greene var. cryptopleuroides Suksdorf Troximon heterophyllum Greene var. cryptopleuroides Suksdorf

14. Troximon heterophyllum Greene var. cryptopleuroides Suksdorf Troximon heterophyllum Greene var. cryptopleuroides Suksdorf Troximon

15. Townsendia alpigena Piper Townsendia alpigena Piper

16. Townsendia alpigena Piper Townsendia alpigena Piper Townsendia

17. Taraxacum paucisquamosum M. Peck Taraxacum paucisquamosum M. Peck one specimen image; one type description (pdf)

18. Taraxacum paucisquamosum M. Peck Taraxacum paucisquamosum M. Peck Taraxacum

19. Taraxacum ammophilum A. Nelson ex Greene Taraxacum ammophilum A. Nelson ex Greene

20. Taraxacum ammophilum A. Nelson ex Greene Taraxacum ammophilum A. Nelson ex Greene Taraxacum
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