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 Image: Basionym: Genus Basionym: Notes:

1. Lepidium reticulatum Howell Lepidium reticulatum Howell

2. Monardella reflexa Howell Monardella reflexa Howell

3. Festuca howellii Hack. ex Beal Festuca howellii Hack. ex Beal

4. Allium watsonii Howell Allium watsonii Howell

5. Cardamine pratensis var. occidentalis S. Wats. Ex B.L. Rob. Cardamine pratensis var. occidentalis S. Wats. Ex B.L. Rob.

6. Cardamine penduliflora O.E. Schulz Cardamine penduliflora O.E. Schulz

7. Cardamine penduliflora O.E. Schulz Cardamine penduliflora O.E. Schulz

8. Cotyledon oregonensis S. Watson Cotyledon oregonensis S. Watson

9. Potentilla ashlandica Greene Potentilla ashlandica Greene

10. Cirsium howellii Petrak Cirsium howellii Petrak

11. Erigeron nudatus A. Gray Erigeron nudatus A. Gray

12. Spiraea occidentalis S. Watson Spiraea occidentalis S. Watson

13. Peucedanum microcarpum Coult. & Rose Peucedanum microcarpum Coult. & Rose

14. Stanleya viridiflora Nutt. var. confertiflora Rob. in Gray Stanleya viridiflora Nutt. var. confertiflora Rob. in Gray

15. Sullivantia oregana S. Watson Sullivantia oregana S. Watson

16. Arabis koehleri Howell Arabis koehleri Howell

17. Microseris oligantha Greene Microseris oligantha Greene

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

19. Ranunculus occidentalis Nutt. var. howellii Greene Ranunculus occidentalis Nutt. var. howellii Greene

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