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 Image: Basionym: Genus Basionym: Notes:

1. Lepidium reticulatum Howell Lepidium reticulatum Howell

2. Festuca howellii Hack. ex Beal Festuca howellii Hack. ex Beal

3. Cirsium undulatum (Nutt.) Spreng. var. ciliolatum Hend. Cirsium undulatum (Nutt.) Spreng. var. ciliolatum Hend.

4. Potentilla ashlandica Greene Potentilla ashlandica Greene

5. Cirsium howellii Petrak Cirsium howellii Petrak

6. Erigeron nudatus A. Gray Erigeron nudatus A. Gray

7. Spiraea occidentalis S. Watson Spiraea occidentalis S. Watson

8. Miltitzia pusilla (A. Gray) Brand var. flagellaris Brand Miltitzia pusilla (A. Gray) Brand var. flagellaris Brand

9. Microseris oligantha Greene Microseris oligantha Greene

10. Hieracium longiberbe Howell Hieracium longiberbe Howell one specimen image; one type description (pdf).

11. Ranunculus occidentalis Nutt. var. howellii Greene Ranunculus occidentalis Nutt. var. howellii Greene

12. Penstemon gairdneri Hook. var. oreganus A. Gray Penstemon gairdneri Hook. var. oreganus A. Gray

13. Spiraea occidentalis S. Watson Spiraea occidentalis S. Watson

14. Peucedanum martindalei Coult. & Rose var. martindalei Peucedanum martindalei Coult. & Rose var. martindalei

15. Iris bracteata S. Watson Iris bracteata S. Watson

16. Senecio hesperius Greene Senecio hesperius Greene

17. Aster militaris Greene Aster militaris Greene

18. Agrostis canina var. stolonifera Vasey Agrostis canina var. stolonifera Vasey

19. Microseris oligantha Greene Microseris oligantha Greene

20. Arnica spathulata Greene Arnica spathulata Greene
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