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Limnanthaceae (28)
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 Image: Basionym: Genus Basionym: Notes:

1. Lepidium reticulatum Howell Lepidium reticulatum Howell

2. Hieracium barbigerum Greene Hieracium barbigerum Greene Hieracium

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. Arabis howellii S. Watson Arabis howellii S. Watson

7. Limnanthes pumila Howell Limnanthes pumila Howell Limnanthes

8. Limnanthes floccosa Howell Limnanthes floccosa Howell Limnanthes

9. Orthocarpus cuspidatus Greene ssp. cuspidatus Greene Orthocarpus cuspidatus Greene ssp. cuspidatus Greene Orthocarpus

10. Microseris oligantha Greene Microseris oligantha Greene

11. Eriophyllum lanceolatum Howell Eriophyllum lanceolatum Howell Eriophyllum

12. Polygonum howellii Greene Polygonum howellii Greene

13. Androsace asprella Greene Androsace asprella Greene Androsace

14. Lepidium oreganum Howell ex Greene Lepidium oreganum Howell ex Greene Lepidium

15. Eriophyllum lanceolatum Howell Eriophyllum lanceolatum Howell Eriophyllum

16. Orthocarpus cuspidatus Greene ssp. cuspidatus Greene Orthocarpus cuspidatus Greene ssp. cuspidatus Greene

17. Lepidium oreganum Howell ex Greene Lepidium oreganum Howell ex Greene Lepidium

18. Limnanthes pumila Howell Limnanthes pumila Howell Limnanthes

19. Senecio subvestitus Howell Senecio subvestitus Howell

20. Velaea howellii Coulter & Rose Velaea howellii Coulter & Rose
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