State & Chapter Events

Updated 2 February 2024

Click a chapter/group name, or scroll the entire list.

State Cheahmill Corvallis Emerald
High Desert Klamath Basin Portland Siskiyou
South Coast Umpqua Valley Willamette Valley William Cusick
Filipendula Group



For questions, or to be added to the Cheahmill Chapter's email list for reminders of upcoming programs and events, please contact the Cheahmill Chapter President at

Check out our Facebook page at

Saturday, February 24, 10:00 am to 12:00 pm
Work Party: Native Plant Garden at McMinnville Public Library
Location: McMinnville Public Library

Winter chores include making design decisions as well as pruning, cleaning up, and weeding. Sometimes we have new species to plant! The garden includes nine ecological areas with sun and shade. Dress for the weather. Bring gloves, bucket, and gardening tools if you have them. 
For more information, contact Catie Anderson at or 971-241-7634.

The library is located at 225 NW Adams Street (corner of Highway 99 W and SW Second Street), McMinnville, Oregon. The library parking lot may be entered from either Adams or Second Streets.

Friday, March 1, 9:00 am to 6:00 pm and
Saturday March 2: 9:00 am to 2:00 pm
Event: Yamhill Soil and Water Conservation District 2024 Native Plant Sale
Location: Yamhill Valley Heritage Center, McMinnville

Online orders can be placed for the native plant sale from the Yamhill Soil and Water Conservation District at You can also sign up for volunteering for the event with this link.


For questions, information on upcoming events, or to be on the Corvallis Chapter email list, contact Find us on Facebook at 

Saturday, February 10, 9:00 am to 4:00 pm
Event: “Insights into Gardening,” Master Gardeners Annual Event
Location: LaSells Stewart Center, Oregon State University campus

The Corvallis Chapter will have a table with information on native plants and NPSO. For more information contact Esther at or 541-990-0948.

Monday, February 12, 7:30 pm to 8:30 pm 
Program: Wildflowers of Iron Mountain and Cone Peak
Presenter: Dan Luoma
Location: Room 2602, Cordley Hall, Oregon State University Campus, 2701 SW Campus Way or via Zoom

The presentation will preview highlights of the spectacular Iron Mountain-Cone Peak loop trail. Over 200 species of vascular plants have been recorded along this botanically rich trail west of Santiam Pass. Both forest and meadow wildflowers are encountered, often in showy, multi-species displays. Dan has led a hike on this trail for our Chapter annually for over thirty-five years.
To attend via Zoom, register in advance here:

After registering, you will receive a confirmation email containing information about joining the meeting.

Saturday, February 24, 1:00 pm to 3:00 pm 
Event: Work Party at the Avery Native Plant Garden
Leader: Esther McEvoy
Location: Avery House Nature Center, Avery Park, Corvallis

Come prepared to do winter cleanup in the gardens. Dress for winter weather and bring gloves, shovel, and clippers. Contact Esther for more information or to RSVP at 541-990-0948 or

Monday, March 11, 7:30 pm to 9:00 pm
Program: “Gardening for the Bees (and the Birds),” and an introduction to the Xerces Society
Presenter: David Kollen, Xerces Society for Invertebrate Conservation.
Location: Room 2602, Cordley Hall, Oregon State University Campus, 2701 SW Campus Way or via Zoom

This program will include:

  • an introduction to pollinators and their importance in natural systems and our food system;
  • native bee diversity and natural history;
  • some butterfly and moth natural history;
  • threats facing pollinators;
  • how we can play a role in pollinator conservation, both in general and in our own landscapes and communities; and
  • opportunities to get involved in community science activities for those interested in going above and beyond.

Dave is a Xerces Society Ambassador and in that role is involved in educational and outreach work. Additionally, he is an Oregon Master Naturalist and Master Melittologist Apprentice. His involvement in community science includes the Pacific Northwest Bumble Bee Atlas, the California Bumble Bee Atlas, and the Oregon Bee Atlas. Dave also writes pollinator-focused articles for the Oregon State Federation of Garden Clubs newsletter, Mahonia. A Zoom link for this program will be provided in the March Bulletin

Saturday, March 30, 1:00 pm to 3:00 pm 
Event: Work Party at the Avery Native Plant Garden
Leader: Esther McEvoy
Location: Avery House Nature Center, Avery Park, Corvallis

Come help with spring cleanup in the gardens. Dress for the weather and bring gloves, shovel, and clippers. Contact Esther for more information or to RSVP at 541-990-0948 or


Visit the Emerald Chapter website at to learn more about the latest chapter events, plant lists, and botanical information about Lane County plants and the people who love them. 

Monday, February 19, 7:00 pm to 9:00 pm
Presentation: Updates on holoparasitic Orobanchaceae in Oregon
Speakers: Dr. Alison Colwell, Curator, Center for Plant Diversity, University of California, Davis and Dr. Adam Schneider, University of Wisconsin, LaCrosse
Location: via Zoom: Click here to enter
Alison Colwell and Adam Schneider have been studying the non-photosynthetic members of the parasitic plant family Orobanchaceae (primarily Aphyllon, Conopholis and Phelipanche) in North America for many years. Hard to find, largely subterranean and often rare, these plants take extreme patience to study. Among the changes Alison and Adam have made that affect the Oregon flora are a reversion of North American native Orobanche to the genus Aphyllon (Adam) and description of new species and revision of existing species (Alison and Adam). This team will provide updates on these projects that affect the Oregon flora.

Monday, March 18, 7:00 pm to 9:00 pm
Presentation: Culturing Native Plants in the Pacific Northwest
Speaker: Michelle Osgood, Assistant Horticulturist at the U.S. Forest Service Dorena Genetic Resource Center
Location: Amazon Community Center, Main Building, 2700 Hilyard St, Eugene, Oregon
Featuring funky ferns and quirky Quercus, U.S. Forest Service horticulturist Michelle Osgood shares techniques about propagating ferns from spores, collecting wild seed, growing resilient native plants, and out planting them into the wild or even your own backyard.

High Desert

For information, visit our website: or Facebook page: Native Plant Society of Oregon: High Desert Chapter, or email us at Find our latest field trip observations on iNaturalist,

Klamath Basin

For information on the Klamath Basin Chapter, contact, visit our website:, or find us on Facebook:(13) Klamath Basin Chapter - Native Plant Society of Oregon | Facebook.


Our members receive The Calochortus, our monthly e-newsletter with field trips, programs, news, and events for the Portland area. If you are a Portland Chapter member and not receiving it, notify us at You'll also find our monthly programs and additional field trips posted on our Meetup page: Our Facebook page is regularly updated with current wildflower bloom status and photos: Visit our chapter website at for archived newsletters and to register for current programs. View recordings of past programs on our YouTube channel. Join one of our iNaturalist projects: Follow us on Instagram:

Members will find links to register for our second Thursday Zoom presentations in each issue of the Bulletin, in The Calochortus newsletter, and on our social media channels. The Portland Chapter does not host Zoom Programs in July and August.

Thursday, February 8, 7:00 pm to 9:00 pm
Program: Extraordinary Plant Communities of the Klamath Mountains
Presenter: Michael Kauffmann, Educator, Author, and Ecologist 
Location: Zoom
The Klamath Mountains contain some of the most exceptional temperate plant communities in the world. Within their geographic boundaries, over 3,500 taxa (species, subspecies, and varieties) of vascular plants, thirty-five conifer species, and twenty species of oak occur. Michael Kauffmann will highlight the plant communities across the region as explored in his new book The Klamath Mountains: A Natural History - which will also be available for purchase. In addition to discussing ten different communities, he will share photos of the rare and unusual plants that call these places home.

Register for the program here.

Thursday, March 14, 7:00 pm to 9:00 pm
Program: Forests During the Time of the Mastodons: Ziegler Reservoir Fossil Site
Presenter: Dean Miller, Data Analytics Trainer and Quaternary Paleobotanist
Location: Zoom
In 2010, during the construction of a reservoir near Snowmass Village, Colorado, bones of mammoth and other extinct species and a rich assemblage of vertebrate, plant, and other fossils were unearthed. Miller takes us on an insider’s journey into the intriguing and revealing world of paleontological and paleobotanical specimens found at the site, especially fossil conifers and their cones. His research on conifer macrofossils provides insights into the successional forest stages throughout the Pleistocene in Colorado. The Snowmass discovery offers insights into poorly understood climatic and ecological changes during the late Pleistocene at high elevations. 

Register for the program here.



To sign up for the Siskiyou Chapter NPSO monthly eNews on a new platform: sign up

To view our YouTube Channel and watch past programs:

To join a native plant google group forum:

To join our Facebook page:

Thursday, February 15, 7:00 pm
Program: Wildflowers of the Siskiyou Mountains
Speaker: Matt Dybala
Location: Southern Oregon University, Science Building, Room 161, Ashland

In anticipation of the upcoming spring-summer bloom, Matt will review the morphological characters and the taxonomy of our native flowers.

This program will also be provided via Zoom for folks who cannot attend in person. To register for the Zoom:

South Coast

The South Coast Chapter has been recently re-established, with membership from both Curry and Coos counties. Guests of members of other chapters are welcome at our events. To join our mailing list, please contact our chapter president Charmane Mitchell at:

Visit our Facebook page at:

Saturday, February 10, 10:00 am to 12:00 pm
Event: In Person Chapter Meeting and Presentation: “Plant Identification Part Two: Major Groups and Plant Families of the South Coast”
Presenter: Olivia Dethlefsen
Location: Church of Jesus Christ of Latter-Day Saints, 2000 Jackson Street, Port Orford, OR 

Olivia Dethlefsen will be presenting part two of her plant identification class. This presentation will begin with the broad outlines of plant evolution, before focusing on some important plant families of our region. She will be covering a lot of material relevant to identification, as well as some information that is simply interesting and adds to our appreciation of native plants.

Umpqua Valley

Check out our Facebook page, Not online? – call Donna Rawson at 541-643-0364.

Willamette Valley

Saturday, February 24, 10:00 am to 12:00 pm
Field Trip: Bush Park Lichen Walk
Trip Leader: Sunia Yang
The Pacific Northwest is one of the lichen hotspots of the world – more than ten percent of the world’s described lichen taxa can be found in our region. Join Sunia Yang to view and identify the lichens in Salem’s Bush Park. Dress appropriately for the weather and bring a hand lens. 

A longtime nature guide, Sunia and Oregon State University professor Bruce McCune developed the first online interactive key to macrolichens in the Pacific Northwest. One of her life goals is to help others see and appreciate lichens. Registration is required. For more information and to register, contact John Savage at
Monday, February 26, 6:30 to 7:30 pm
Zoom Program: When is an Endangered Species Really Recovered?  Four Stories of Hope and Uncertainty from the Willamette Valley. 
Dr. Tom Kaye, Executive Director of the Institute for Applied Ecology, will discuss the remarkable recovery of four endangered species and the perils they still face. His nonprofit organization has worked to restore populations of Bradshaw’s lomatium, Fender’s blue butterfly, golden paintbrush, and Nelson’s checkermallow in partnership with several other organizations and agencies for over two decades, with substantial conservation impact. Tom will explain their successful approach and why these species need continued care and attention. Registration is required. For more information and to register for this Zoom presentation, email John Savage at

William Cusick

Chapter notices and communications are done primarily through a Google group. For more information or to be added to the Google group, please contact Susan Geer at 541-963-0477 or Our website is not currently functional.

Native Plant Interest Groups:


For more information, visit our Facebook page: NPSO-Filipendula Chapter

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