Herbarium Collections and Invasive Species Biology: Understanding the Past, Present, and Future

1. Herbarium Collections and Invasive Species Biology: Understanding the Past, Present, and Future David Giblin, Ph.D. Ben Legler Richard G. Olmstead, Ph.D. University of Washington Herbarium - Burke Museum

2. Talk Outline • UW Herbarium • Herbaria and Invasive Plant Research • Inadequate Invasive Plant Collections • Recent Invasives Data from WTU • Digital Resources at WTU • Conclusions and Future Needs

3. The University of Washington Herbarium • Founded in 1882 - now part of Burke Museum • Largest in Pacific Northwest

5. The University of Washington Herbarium • Founded in 1882 - now part of Burke Museum • Largest in Pacific Northwest • ~600,000 specimens • vascular plants (380,000) • bryophytes (120,000) • fungi (50,000) • lichens (22,000) • marine algae (25,000)

9. Talk Outline • UW Herbarium • Herbaria and Invasive Plant Research • Inadequate Invasive Plant Collections • Recent Invasives Data from WTU • Digital Resources at WTU • Conclusions and Future Needs

10. Specimen-based Research Marion Ownbey - Tragopogon

11. Specimen-based Research Marion Ownbey - Tragopogon Richard Mack - Bromus tectorum

12. Specimen-based Research Marion Ownbey - Tragopogon Richard Mack - Bromus tectorum Sarah Reichard - Invasive Ornamentals

13. Specimen-based Research Marion Ownbey - Tragopogon Richard Mack - Bromus tectorum Sarah Reichard - Invasive Ornamentals Peter Zika - Native/Exotic congeneric hybridization

14. Talk Outline • UW Herbarium • Herbaria and Invasive Plant Research • Inadequate Invasive Plant Collections • Recent Invasives Data from WTU • Digital Resources at WTU • Conclusions and Future Needs

16. # of Specimens (x 1000)

19. Spartina alterniflora - smooth cordgrass

20. Polygonum cuspidatum - Japanese knotweed

21. Buddleja davidii - butterfly bush

22. Talk Outline • UW Herbarium • Herbaria and Invasive Plant Research • Inadequate Invasive Plant Collections • Recent Invasives Data from WTU • Digital Resources at WTU • Conclusions and Future Needs

23. Recent Findings • Impatiens x pacifica (I. ecalcarata x I. capensis) in Western Washington • Murdannia kiesak along Columbia River • Geranium lucidum in Clark and Skagit counties

24. Murdannia keisak - wartremoving herb

25. Impatiens x pacifica (I. ecalcarata x I. capensis) - jewelweed

26. Geranium lucidum - shining geranium

27. Talk Outline • UW Herbarium • Herbaria and Invasive Plant Research • Inadequate Invasive Plant Collections • Recent Invasives Data from WTU • Digital Resources at WTU • Conclusions and Future Needs

32. Talk Outline • UW Herbarium • Herbaria and Invasive Plant Research • Inadequate Invasive Plant Collections • Recent Invasives Data from WTU • Digital Resources at WTU • Conclusions and Future Needs

33. Conclusions and Future Needs • Herbarium records invaluable • Increase effort to collect invasives • Deposit duplicates at regionally significant herbaria • Increase funding for databasing invasives specimens • Exploit emerging technologies for data sharing

34. Photo Acknowledgements • Ben Legler • Fred Weinmann • Arne Andenberg