State & Chapter Events

Updated 2 April 2024

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


May 17-19, 2024
NPSO Annual Meeting
Spirit Mountain Lodge, Grand Ronde
Hosted by Cheahmill and Corvallis Chapters
More information and registration at


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, April 27, 9:00 am - 11:00 am
Work Party: Native Plant Garden at McMinnville Public Library
Location: McMinnville Public Library

Spend a couple hours with a congenial crew and learn how the beauty, diversity, and educational value of this mature demonstration garden is maintained with a minimum of effort. No experience is necessary. Bring gloves, bucket, and gardening tools. Dress for the weather. 
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.


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

Monday, April 8, 7:30 pm - 8:30 pm
Program: Wildflowers of Mary’s Peak
Presenter: Phil Hays
Location: Room 2602, Cordley Hall, Oregon State University Campus, 2701 SW Campus Way or via Zoom.

Phil has led the Mary’s Peak hike for the Corvallis Chapter for decades and is a fabulous photographer. He has also co-written an article on the Mary’s Peak Scenic Botanical Area that was published in Kalmiopsis.  

To attend via Zoom, register in advance here: 
After registering, you will receive a confirmation email containing information about joining the meeting. 


Saturday, April 13, 10:00 am - 12:00 pm
Field Trip: Jackson Frazier Wetlands  
Leaders: Dan Luoma and Joyce Eberhart

We will spend about one to two hours walking around the Bob Frenkel Boardwalk at Jackson Frazier Wetlands looking for early native wildflowers, including some of the seven species of buttercups known from the site.
We will meet at the parking lot for the wetlands at the north end of Lancaster Street in Corvallis. For more information, contact Dan at

Sunday, April 21, 1:00 pm – 3:00 pm
Field Trip: Baker Creek Trail at Sulphur Springs

The Sulphur Springs area of the McDonald research forest north of Corvallis will be an easy hike through a beautiful area to celebrate Native Plant Appreciation month! The hike is 0.24 miles long with a twenty-three-foot elevation gain. Some blooming native wildflowers that might be seen are Delphinium trolliifolium, Trillium sp., Dicentra formosa, and Cardamine sp. There is a large parking area at the trailhead for Baker Creek. Please bring water and dress appropriately for the weather.

Meet at the parking area for Baker Creek Bridge trail on Sulphur Springs Road. For more information, contact Alexandria Kurowski,

Saturday, April 27, 10:00 am - 12:00 pm
Field Trip:  Woodpecker Loop, William L. Finley National Wildlife Refuge
Leader:  Esther McEvoy

This will be a short hike through a wooded area with trillium, osoberry, and thimbleberry. We may also see patches of iris, rose checkermallow, and hopefully some cat’s ear. We will look to see if we can find the elusive Fritillaria affinis. Come dressed for the weather and bring binoculars.
Meet at the parking area next to Woodpecker Loop. Contact Esther for more information at 541-990-0948.


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. 

Saturday, April 13, 9:00 am - 3:00 pm
Field Trip: Brice Creek Trail
Leader: Bruce Waugh

Join State Board member Bruce Waugh hiking in an old growth forest on a streamside trail through a scenic, rocky canyon. We will primarily see forest flora with the occasional rocky bald. It is a three-mile round-trip on an easy to moderate trail. Due to the narrowness of the trail and steep drop offs, this hike is not suitable for those with vertigo or balance issues. 

If participants are interested in seeing the native plant gardening and restoration Bruce has been doing on his oak woodland property outside of Cottage Grove for the past eight years, he is willing to show folks around after the walk. 

Meet at South Eugene High School at 19th and Patterson Street in Eugene at 9:00 am or at Row River Nature Park in Cottage Grove at 9:30 am. Bring lunch, water, boots, rain gear, and hiking poles if desired. Sign up here
Sunday, April 14, 1:00 pm - 2:00 pm
Field Trip: Museum of Natural and Cultural History Native Plant Garden
Leader: Margaret Conover
The property surrounding this museum, on the University of Oregon campus, bears an excellent native plant garden that is little known to the community. In partnership with the museum, Emerald Chapter members will be leading this short walk in and around the museum's Glenn Starlin Native Plant Courtyard. With over forty species, the courtyard offers a rich array of plant life that has provided nutrition and material for tools, shelter, and more for millennia. This is the first of a monthly series of walks at this location. Limited free parking is in a designated lot located just west of the mammoths on East 15th Avenue, and metered parking is available on the street. The address is 1680 East 15th Avenue on the University of Oregon campus in Eugene. Sign-up is not needed, and the tour is free to NPSO members.
Friday, April 19, 7:00 pm *Note this is Friday, not a Monday meeting.
Presentation: The Master Melittologist Program's Oregon Bee Atlas: A Statewide Initiative to Document the Floral Relations of Oregon's Native Bee Fauna Using Community Scientists.
Speaker: Lincoln Best, Faculty Research Assistant, Oregon State University
Location: In Person, 221 Allen Hall, University of Oregon campus. Venue may change, so check to stay informed.
Lincoln will introduce the productive framework for education through the online Master Melittologist Program and data production for the Oregon Bee Atlas. These complementary programs have assessed native bee visitors to more than 1,500 plant taxa in the state and have detected several hundred species of bees including new state records and new species. Using a combination of traditional morphological examination and DNA-barcoding to identify species continues to expand our knowledge of the state bee fauna.
Lincoln Best is the taxonomist for the Oregon Bee Atlas and collaborates on research with many other groups in the Pacific Northwest and internationally. He is most interested in faunistics and the floral relations of these amazing animals.
Sunday April 21, 10:00 am - 11:30 am
Field Trip: Laurelwood Bog
Leader: Hugh Pritchard
Location: The entrance to the Bog is at the end of Agate Street, Eugene, Oregon. Just head south until you can’t go any further, and you have arrived. Parking is on-street.
Hugh Prichard, co-owner with the city of Eugene, will lead us on this tour on the Northwest corner of the Laurelwood Golf course. The Laurelwood Bog is a native plant project in its fourteenth year and has many mature plants with a forty-foot-tall Salix sp. and a ninebark tunnel arching over the pathways. Hugh has now planted over 110 species, and over seventy-five should be identifiable on the day of the tour. Most are marked. Sign up here

Friday to Monday, April 26 – 29
Activity: 2024 City Nature Challenge 
The City Nature Challenge is a community science bioblitz with the goal of observing and identifying as many species as possible in urban communities and surrounding areas. Participants from more than 450 cities worldwide will contribute! Our project geography covers the entirety of Lane County. All you need to do to contribute is to upload the iNaturalist project here and make observations of plants, animals, or fungi when you are outside during this weekend. Information on scheduled events and further details can be found on the City Nature Challenge Facebook page.

Saturday, April 27, 10:00 am – 12:00 pm
Field Trip: Amazon Park Annual Family Plant Walk
Leaders: NPSO Volunteers
Location:  Amazon Community Center, Main Hall, 2700 Hilyard St, Eugene
Join NPSO volunteers on a tour of the wildflowers that are growing along the trail in Amazon Park. We’ll learn about streamside and wetland plants and look for wildlife along the way. Meet at the Amazon Community Center at 10:00 am. The walk is approximately a 1.5-mile loop on pavement and barked trail. Sign up with the City of Eugene Park and Recreation Program.
Sunday, May 5, 1:00 pm - 2:00 pm
Field Trip: Museum of Natural and Cultural History Native Plant Garden
The property surrounding this museum, on the University of Oregon campus, bears an excellent native plant garden that is little known to the community. In partnership with the museum, Emerald Chapter members will be leading this short walk in and around the museum's Glenn Starlin Native Plant Courtyard. With over forty species, the courtyard offers a rich array of plant life that has provided nutrition and material for tools, shelter, and more for millennia. This is the second of a monthly series of walks at this location. Limited free parking is in a designated lot located just west of the mammoths on East 15th Avenue, and metered parking is available on the street. The address is 1680 East 15th Avenue on the U of O campus in Eugene. Sign-up is not needed, and the tour is free to NPSO members.

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,

Saturday, April 13, 9:00 am – 12:00 pm
Field Trip: Buttercup Bonanza at Chimney Rock
Leader: Ben Snyder, High Desert Chapter member
Location: Chimney Rock Trail (
The hike begins near the Crooked River and winds about 700 feet up to the top of the bluffs – about three miles round trip, at a relaxed pace. The group will hopefully be checking out Lomatium sp., Ribes sp., Sedum sp., Salvia sp., Woodsia sp., and the abundant sagebrush buttercups among many other wonderful plants. Wear your favorite hiking footwear. Bring water and snacks; we’ll be taking a break at the eponymous pillar of basalt. Join this optimistic look toward spring with your fellow plant lovers!
RSVP to High Desert field trip coordinator Jill Kellogg at HighDesertNPSO (at) gmail (dot) com with “Chimney Rock” in the subject line. The location is about an hour’s drive from Bend. Please indicate if you’d like to share your email with other participants so you can make carpool arrangements. Limit twenty buttercup enthusiasts.

Wednesday, April 24, 4:00 pm
Event: High Desert Chapter Spring Social and Chapter Meeting
Location: WinterCreek Nursery, 63405 Deschutes Market Road, Bend

Come meet our incoming board members and enjoy a spring afternoon perusing WinterCreek’s extensive native plant selection. More details coming soon. Snacks and beverages provided.

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.

April is Native Plant Appreciation Month
Join the Portland Chapter of the Native Plant Society of Oregon (NPSOPDX) for a variety of native plant related activities: hikes, workshops, programs, and more. Check our Website and Google Calendar for more details.

The NPSO Portland Chapter gets ready to launch its fourth annual iNaturalist Bioblitz for the 2024 Native Plant Appreciation Month! Help us document the existence and phenology (life stage) of native plants in the greater Portland area and the Columbia River Gorge during the months of April and May. This is a fantastic opportunity to enjoy and protect Pacific Northwest natives. If you haven't already, please download the iNaturalist app, available for iPhone or Android, and at iNaturalist. 

Join this year's iNaturalist NPSOPDX24 Native Plant Appreciation BioBlitz 2024 and compare this year’s observations to the previous ones on our Collective NPAM page projects here.

Saturday, April 6, 1:00 pm - 3:00 pm
Volunteer Work Party: Friends of Nob Hill Nature Park
Location: Nob Hill Nature Park, St. Helens, OR
Scappoose Bay Watershed Council and Friends of Nob Hill Nature Park invite you to join the semi-annual volunteer workday. We’ll pull ivy and put in native plants donated by Scappoose Bay Watershed Council at the lower park. Nob Hill Nature Park is an oak woodland overlooking the Columbia River.
Dress for the weather, including rain gear if needed. Please bring gloves, tools, water, and snacks. This work party takes place rain or shine. Meet at the kiosk across from the city’s water treatment plant at 451 Plymouth Street, in St. Helens. All are welcome.
Pre-registration is requested by Friday, April 5 by calling Scappoose Bay Watershed Council at 503-397-7904 or email For the day of the event, call 503-349-8586. We look forward to seeing you!

Thursday, April 11, 7:00 pm – 9:00 pm
Zoom Presentation: 
Native Plants of Oregon’s Northern Coastal Range 
Presenter: Kira Taylor, Naturalist
Location: Zoom

Tucked away in the northern reaches of Oregon's Coast Range, the Tillamook and Clatsop State Forests are an underappreciated wonder. In this presentation, Kira Taylor, a long-time Coast Range resident and naturalist, shares some of her favorite hikes in the Tillamook and Clatsop as well as the native plants found growing along these trails. She'll also touch on the history of these lands, from the formation of the Coast Range, through the Tillamook Burn, to their designation as State Forests. Highlighting additional resources, Kira provides the tools to plan your own hikes into this spectacular region.

Register for this Zoom event here. When you register, you will receive an email with the Zoom link to join. Save it! 

Thursday, April 18, 7:00 pm
In-Person Presentation: Plants that Eat Truffles for Lunch

Presenter: Daniel Luoma, Former State NPSO President and Oregon State University Mycology Professor
Location: The SE Uplift Building Fireplace Room
3534 SE Main St. Portland, Or 97214

Dan Luoma will discuss a group of fascinating organisms that have gourmet dietary preferences. Interactions between forest plants and their associated beneficial root fungi provide the broader context for this talk. He will give special attention to those plants without chlorophyll that depend on truffle-forming fungi to meet their nutritional needs.

Members are invited to this special event as well as one guest per member.  
Thursday, May 9, 7:00 pm
Zoom Presentation: Where We Call Home: Lands, Seas, and Skies of the Pacific Northwest  
Presenter: Josephine Woolington, Writer and Musician

Location: Zoom 

Josephine will discuss her book, Where We Call Home: Lands, Seas, and Skies of the Pacific Northwest, a nonfiction essay collection about Northwest plants and animals, and the relationship that people have had with them over time. Through interviews with local biologists, historians, artists, and Indigenous leaders and scientists from the Confederated Tribes of Grand Ronde, the Yakama Nation, Haida Nation, and the Makah Tribe, the essays delve into the past, present, and possible future of Northwest landscapes, encouraging curiosity, humility, and a more collective understanding of our home. Josephine will also discuss her latest work featured in High Country News that details underground seed banks and their promise for ecological restoration. 

Register for this Zoom event here. When you register, you'll receive an email with a link to join the session. Save it. 
For field trip Information, visit our Google Calendar



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:

Sunday, April 7, 9:30 am
Field Trip: Bald Mount Plant Hike

Leader: Wayne Rolle

The Siskiyou Chapter of the NPSO is hosting a botanical field trip along the ridge of Bald Mountain. Bald Mountain is located above 5,000 feet in elevation between Talent and the Little Applegate watershed. This will be an opportunity to see the locally rare Henderson's biscuitroot (Lomatium hendersonii) and a few other early wildflowers that make up the diverse native flora of the area. Hike participants will enjoy great views of the Siskiyou Mountains. The hike is of moderate difficulty. Meet for carpooling in the south parking lot of Talent Elementary School (corner of Wagner Creek Road and Schoolhouse Road) at 9:30am. To register:

Email the trip leader Wayne Rolle at if more information is desired. All NPSO field trips are free and open to the public.

Thursday, April 18, 7:00 pm
Program: The Serpentine Flora of Oregon's Blue Mountains
Speaker: Dick O’Donnell
Location: Southern Oregon University, Ashland, Science Building, Room 101 or via Zoom

Scattered here and there in the Blue Mountains of Northeastern Oregon are areas of soil derived from serpentinite (mantle rock or serpentine). This challenging soil supports peculiar vegetation. After fifteen years of multiple annual visits to explore the serpentine in the Blue Mountains, Dick O’Donnel is memorializing the event with a long paper which is nearly complete and will be ready to publish in a few weeks. Dick spoke to the Siskiyou Chapter several years ago.

Southern Oregon University, Science Building, Room 161. This program will also be provided as a zoom for folks who cannot attend in person. To register for the zoom:

Dick’s degree is in economics to which he sacrificed twenty-five good years in the corporate world. Now retired, He studies and photograph plants from southern Arizona to the Wallowa Mountains. When not in the field, he studies 19th century botany and botanists in the old and new worlds.

Saturday, April 20, 9:30 am – 12:00 pm
Field Trip: Rough and Ready Botanical Wayside
Trip Leaders: Siskiyou Chapter NPSO and Cultural and Ecological Enhancement Network

Registration Link:

Monday, April 29, 9:00 am - 1:00 pm (8:00 am carpool from Oregon State University Extension, Central Point)
Hike: Limpy Botanical Trail Hike
Leader: Rachel Werling
Join us for an easy one-mile loop trail through the botanically rich serpentine area of the Limpy Botanical Interpretive Trail outside of Grants Pass. This is a lovely and varied walk-through forest and meadow showcasing a rich diversity of our spectacular southwest Oregon flora. A woodland of the magical Pacific yew and waterfalls along Limpy Creek are part of this special walk.
Registration and more information can be found at:

Friday, May 31, 1:00 - 4:00 pm
Field Trip: Identifying Wildflowers of the Cathedral Hills
Trip Leaders: Doranne Long & Amanda Snodgrass, Bureau of Land Mangement Botanist

Registration Link:

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, April 6, 11:00 am
Hike: Sweet Smell of Azaleas on the Coastal Trail

Leader: Julia Bott
Location: Coastal Trail at Harris Beach State Park, Brookings
We will meet at the overflow parking lot near the entry kiosk. The main part of the hike is approximately two miles round-trip on flat, accessible trails. Additional options are available.
Julie can be reached at:, 650-520-5673.

Umpqua Valley

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

Saturday April 6 or Sunday April 7, 9:00 am - 3:00 pm   
Field Trip: Olalla Creek-Course Gold, Lower Olalla Creek Watershed
Leader: Rod Trotter
This is our first field trip of the year to view early spring wildflowers in Olalla Creek watershed. Rod Trotter will lead the group to Olalla Creek on Upper Olalla Road, south of Tenmile, Oregon to view the first wildflowers of spring including: Oregon fetid adder’s tongue (Scoliopus hallii), gold star (Crocidium multicaule), and rosy plectritis (Plectritis congesta). We make several stops on this easy walk along Olalla Creek. Ride sharing is encouraged. Bring lunch and dress for the weather conditions. We will leave Roseburg at 9:00 am and return about 3:00 pm. Contact Rod at 541-672-1907 or M A. Hansen at 541-863-8111 for the meeting location and other details.

Tuesday, April 9, 6:00 pm
Chapter Meeting: (in person and via Zoom) followed by 7:00 pm
Video Presentation: Homegrown National Parks

Presenter: Doug Tallamy

Come see our new meeting room at the Faith Lutheran Church, 820 Kenwood Street, Roseburg. (Westside parking area behind the church.)  For questions or Zoom information, contact Donna at 541-643-0365.

Saturday April 13 or Sunday April 14, 9:00 am – 3:00 pm
Field Trip: Beatty Creek- Beatty Rock

Beatty Rock is monolithic outcropping of conglomerate in the lower Cow Creek watershed. This is one of our favorite spots. The wildflower display is continuously changing all spring. We will explore along lower Cow Creek Road to examine the California sword fern (Polystichum californicum), Hooker’s fairy bells, a rare moss (Pseudoleskeella serpentinensis), the fairy slipper orchid (Calypso bulbosa), grass widows, (Olsynium douglasii), coast trillium (Trillium ovatum) and a rarely seen yellow Lomatium sp. Parking is limited, ride sharing is advised.   
If you're coming from south of Roseburg, you can meet us in the McDonald's parking lot on the Riddle Interstate-5, 103 exit road. Let us know if you are meeting us there. We should be there around 9:20 am (departing Roseburg at 9:00 am.)  
Contact Rod Trotter at 541-672-1907 or M. A. Hansen at 541-863-8111 with questions or for details. It is imperative that you call Rod or M.A. again the night before the trip to confirm your plans to attend and to confirm the schedule has not changed. We often have to change the date on short notice due to bloom or weather unpredictability, or country emergency road closures.


Willamette Valley

Thursday, April 25, 6:30 pm - 7:30 pm
Zoom Program: Tribal Histories of the Willamette Valley and Reconstructing Willamette Valley Environments
Presenter: Dr. David G. Lewis
Dr. Lewis, Assistant Professor of Anthropology and Indigenous Studies at Oregon State University and author of the acclaimed Tribal Histories of the Willamette Valley, will discuss the Kalapuya tribal culture and the Willamette Valley environments in which they lived, and present his research tracing the changes to the environment after arrival of European settlers. Dr. Lewis will explore the removal of water and the return of cultural fire and what this means for tribal descendants today. 
Dr. Lewis has conducted extensive research on the tribal histories of Northwest coastal peoples, specializing in Western Oregon tribes. He served as the director of the Southwest Oregon Project at the University of Oregon and was the Cultural Department manager of the Confederated Tribes of the Grand Ronde for eight years. Dr. Lewis is a member of the Confederated Tribes of the Grand Ronde and a descendant of the Takelma, Chinook, Molalla, and Santiam Kalapuya peoples of Western Oregon. For more information and to register for this Zoom presentation, email John Savage at
Sunday, April 28, 12:00 pm – 2:00 pm
Field Trip: Bush Park
Leaders: Members of the Willamette Valley Chapter of NPSO
Bush’s Pasture Park is home to more than fifty native wildflowers. Members of the Willamette Valley Chapter of NPSO will lead a walk to view and identify the native plants. The walk is part of the City Nature Challenge sponsored by the City of Salem and Marion Soil and Water Conservation District. For more information and to register for the plant walk, contact John Savage at For information about the City Nature Challenge, visit the event webpage at or call 503-588-6229. 

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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