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California Native Plant Society

Santa Clara Valley Chapter

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Paintbrushes in Peril: Rare Castilleja Species of North America 
Wednesday, August 18, 2021 07:30pm
 

Of the approximately 200 species of the genus Castilleja, many are common, widespread and often conspicuous components of our native flora. However, there are also many species in the genus that are rare and declining due to a variety of causes, as well as many others that are extremely range-limited due to their stringent habitat requirements. Many of these species are seriously threatened with extinction from a variety of mostly human-caused factors, including global warming and resultant climate changes.

Fortunately, there are also some remarkable success stories, including the strong recovery of several species that were nearly extinct but recovered once the sources of their decline were eliminated. The program will include photos from Mark’s 37 years of field work studying paintbrushes and their relatives.

Mark Egger is a retired science educator, a research associate at the WTU Herbarium in Seattle (Washington Territory University), and a member of CNPS, WNPS (Washington Native Plant Society), and NPSO (Native Plant Society of Oregon). He has published numerous papers and flora treatments for the genus Castilleja, including a number of new species and varieties, and he is the lead author for Castilleja in the recently-published Vol. 17 of the Flora of North America. He also maintains a Flickr site with over 56,000 images of his botanical photos collected from travels over the last 37 years, centered around Castilleja and related genera. 

This talk will be live streamed on YouTube and Zoom (requires advance registration).

 
Location Zoom registration: bit.ly/cnpsscv-20210818
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Upcoming Events

Fri Jul 26 @ 9:00AM - 12:00PM
Friday Edgewood Restoration
Fri Jul 26 @ 7:00PM - 08:50PM
Photography Group - Photo Sharing Meeting
Sat Jul 27 @ 8:00AM - 10:00AM
Lake Cunningham Native Garden
Sat Jul 27 @ 9:00AM - 11:00AM
Community Work Day at the Native Plant Garden in Kirk Park
Wed Jul 31 @ 7:00PM - 08:30PM
Flowers as Islands, a talk by Tadashi Fukami
Fri Aug 02 @ 9:00AM - 12:00PM
Friday Edgewood Restoration
Sat Aug 03 @ 8:00AM - 10:00AM
Lake Cunningham Native Garden
Sat Aug 03 @ 9:00AM - 11:00AM
Community Work Day at the Native Plant Garden in Kirk Park
Thu Aug 08 @ 7:00PM - 08:30PM
A Few Native California Oak Mysteries! A talk by Al Keuter
Fri Aug 09 @ 9:00AM - 12:00PM
Friday Edgewood Restoration