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Oregon (36)

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Asteraceae (28)
Poaceae (16)
Ranunculaceae (8)
Brassicaceae (8)
Cirsium (6)
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 Image: Basionym: Genus Basionym: Notes:
1. Lepidium reticulatum Howell Lepidium reticulatum Howell
2. Cirsium undulatum (Nutt.) Spreng. var. ciliolatum Hend. Cirsium undulatum (Nutt.) Spreng. var. ciliolatum Hend.
3. Potentilla ashlandica Greene Potentilla ashlandica Greene
4. Microseris oligantha Greene Microseris oligantha Greene
5. Ranunculus occidentalis Nutt. var. howellii Greene Ranunculus occidentalis Nutt. var. howellii Greene
6. Microseris oligantha Greene Microseris oligantha Greene
7. Article Article
8. Article Article
9. Velaea howellii Coulter & Rose Velaea howellii Coulter & Rose
10. Article Article
11. Ranunculus occidentalis Nutt. var. howellii Greene Ranunculus occidentalis Nutt. var. howellii Greene
12. Article Article
13. Article Article
14. Article Article
15. Eriophyllum lanceolatum Howell Eriophyllum lanceolatum Howell
16. Limnanthes pumila Howell Limnanthes pumila Howell
17. Article Article
18. Eriophyllum lanceolatum Howell Eriophyllum lanceolatum Howell
19. Alopecurus howellii Vasey Alopecurus howellii Vasey
20. Poa argentea Howell ex Vasey Poa argentea Howell ex Vasey
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