State & Chapter Events

Updated 2 May 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, May 25, 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 

Saturday, May 25, 1:00 pm - 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. 

Sunday, May 5, 1:00 pm - 2:00 pm
Field Trip: Museum of Natural and Cultural History Native Plant Garden
Leader: Margaret Conover
Location: 1680 East 15th Avenue, University of Oregon Campus, Eugene

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.

Thursday, May 16, 5:45 pm - 6:45 pm 
Field Trip: University of Oregon (UO) Riverfront Plant Phenology Monitoring Plot Demo 
Leaders: Jeff Diez, Katelin Kutella, and Sarah Erskine, UO Institute of Ecology and Evolution, and Gail Baker, Lane Community College Professor of Biology
Location: Riverfront property of UO Campus, just southwest of the Frohnmayer Bridge along the Ruth Bascom Bike Path
Join UO ecologists Sarah Erskine, Katelin Kutella, Jeff Diez, and Lane Community College Professor of Biology Gail Baker to tour a new ecological experiment embedded within public spaces in Eugene. The project is a collaboration between the UO researchers, Eugene Public Parks, and community naturalists (like you!?). The overall goal of the project is to better understand how climate affects plant phenology, species interactions, and the performance of our native prairie species. Expect to see blooms of Collinsia sp., popcorn flower, and pink Plectritis sp. among others. By sowing mini-restoration experiments and collecting data on phenology, species interactions, and species performance, the study aims to enhance local biodiversity in our public spaces and help inform future restoration efforts. The project is also seeking volunteers to help monitor species at several public parks and is using observations from iNaturalist to understand how our local Eugene plant phenology fits into larger regional patterns.

See the map at for location and different parking lots with easy access to the Ruth Bascom Bike Path. Note that most parking requires a visitor permit before 6:00 pm.  
iNaturalist Project to view the site and current blooms. 
Project website for more details about all the sites and a map.
Community Ecology Research Lab at UO describing who we are and our research.

Friday to Saturday, May 17-18
Volunteer Opportunity: Help prepare for Mount Pisgah Arboretum Wildflower Festival
Location: Mount Pisgah Arboretum, 34901 Frank Parrish Rd, Eugene

The Emerald Chapter is a co-sponsor of the annual wildflower festival, and all members are invited to help prepare for this important event. Members can:
1) Collect Lane County plants on Friday, May 17 or early Saturday morning, May 18 for Pavilion display. If you need a place to collect or have questions, contact
2) Set up the display on Saturday, May 18 starting at 9:00 am; come for a couple hours or stay all day. It is a great way to brush up on or start learning Lane County native plants. Experts are available to help! 
3) Collect iNaturalist data from May 16-20 by photographing and posting plants blooming in Lane County. For details, visit this year's Lane County Flora Blitz project: Lane County Wildflower Show Florablitz 2024.

Sunday, May 19th, 10:00 am – 5:00 pm
Special Event: Mt. Pisgah Arboretum Wildflower Festival
Location: Mount Pisgah Arboretum, 34901 Frank Parrish Rd, Eugene

This Festival is a great, family-friendly event with activities including an expansive wildflower display in the White Oak Pavilion highlighting over 200 local species, live music featuring local bands, the Art in Nature Trail with ephemeral art installations, guided nature walks by local experts, and local vendors (food, beverages, arts and crafts, and plants).
Come find our booth to the left of the entrance to the wildflower display. 
More information and tickets are available at

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, May 11, 10:00 am – 2:00 pm
Field Trip: Lawrence Memorial Grasslands Preserve
Hike Leaders: Tom Wainwright and Cindy Roché
Location: The Nature Conservancy Lawrence Memorial Grasslands Preserve, between Antelope and Shaniko

Join us for a trip to Lawrence Memorial Grasslands Preserve (The Nature Conservancy). It is one of the best remaining examples of Columbia Plateau biscuit-scabland prairie, with mima mounds interspersed with basalt outcrops and ravines. There is a wide variety of bunchgrasses and wildflowers across the mixed habitats. This is an opportunity for those interested in grass identification to practice keying grasses with Cindy. Bring your Field Guide to Grasses of Oregon and Washington and appropriate field tools for identification (hand lens and mm ruler). Those less interested in grasses can explore the diversity of spring wildflowers with Tom. This is a short hike of less than three miles with little elevation gain, but terrain is uneven and rocky.

RSVP to hike leader Tom Wainwright at with "Lawrence Grasslands" in the subject line. It's about a two-hour drive from Bend to Lawrence Memorial Grasslands Preserve, between Antelope and Shaniko, so Bend participants should plan to leave at 8:00 am. Carpools will be arranged. Limited to twelve participants.
Tuesday, May 21, 9:45 am - 3:00 pm
Field Trip: Rimrock Springs
Hike Leader: Karlene Richmond
Location:  Rimrock Springs Trailhead, U.S. Highway 26 between Madras and Prineville

Rimrock Springs trail crosses through a high desert juniper and sagebrush environment which then leads to a wetland oasis, doubling the wildflower possibilities. We might see bitterroot in bloom as well as Calochortus lily, rough eyelash-weed, bee plant, fleabane, lupine, delphinium, penstemon, phlox, and buckwheat. The list goes on! The approx. two-mile easy trail is fairly flat, and half of it is paved. Parking is available at the trailhead.

To register, email the chapter trip coordinator at with “2024 Rimrock” in the subject line.

Saturday, June 2, 9:00 am – 3:00 pm
Field Trip: Wildflowers of Big Summit Prairie
Trip leader: Jennifer Curtis
Location: Big Summit Prairie
Rating: Easy

Explore the riot of flowers of Big Summit Prairie north of Prineville. We’ll never be far from our vehicles but will still find all kinds of dazzling blooms. To let us know you’re interested, email the High Desert Chapter trip coordinator at with “2024 BSP” in the subject line.

Saturday, June 8, 9:00 am – 4:00 pm
Field Trip: Skull Hollow Saddle and Pine Ridge
Trip leaders: Stu Garrett and Cindy Roché
Location: Crooked River National Grasslands
Rating: Moderately Difficult

Pine Ridge is a volcanic ridge near Gray Butte that is in unusually good ecological condition and supports a variety of spring wildflowers. At the base of the butte, we will visit two exclosures: one for cattle and the other for both livestock and elk. The High Desert Chapter has been working with Crooked River National Grasslands at this site, including medusahead plots. We expect to see a variety of grasses and early summer wildflowers, including a variety of penstemons, sandwort, buckwheats, paintbrush, biscuitroot, groundsels, balsamroot, and lupine (and more!). Pine Ridge and Gray Butte lie at the edge of the Crooked River Caldera, providing geologically spectacular views on a clear day. The tour will include a discussion of geology. The trip involves hiking approximately two miles off-trail, with no more than 1,000-feet elevation gain. We will be going up the side of the butte, which is fairly steep. 

We will depart from Bend at 9:00 am and return to Bend by 4:00 pm. We will meet to carpool in the parking lot south of the Sherwin-Williams paint store in front of the Lowe's store along Highway 97 in north Bend. Roads are dirt, but passable with Subaru Outback clearance level. Wear hiking boots and dress for the weather; bring water and lunch/snacks. No dogs or other pets.

To register, email the chapter trip coordinator at with "Gray Butte 2024" in the subject line.

Saturday, June 22, 2024, 9:00 am – 3:00 pm
Event: Sunriver Wildflower Show and Pollinator Festival
Location: Sunriver Nature Center, Sunriver

Save the date! Join Sunriver Nature Center and Observatory and the High Desert Chapter of the Native Plant Society as we celebrate the diversity of wildflowers in Oregon and the pollinators who love them. More information can be found at:

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, 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

Monday, May 20, 5:00 pm - 8:00 pm
Field Trip: BioBlitz Hike: Giant Wildflowers of Salmon River
Leaders: Lecia Schall and Cloudy Sears
Location: Old Salmon River Trail, Welches

Join us, Lecia and Cloudy, for an evening hike experiencing wilderness and an amazing array of giant trees and giant wildflowers along the Old Salmon River Trail. This old growth forest river trail follows the Salmon River through fields of fawn lilies, fairy bells, lanterns, and corydalis flowers. We will start at the Green Canyon Campground and perhaps stage some cars at other trailheads. There are vault toilets available there.
There is a day use fee of $10 at the Green Canyon Campground, but a N.W. Forest Service Pass may be used in lieu of a day use fee. Join our 4th annual NPSOPDX24 May Wildflower BioBlitz! Contact Lecia (Lisa) to RSVP.
Thursday, June 13th, 2024, 7:00 pm - 9:00 pm
Zoom Presentation: The Forest Canopy: An Ecosystem Overhead
Presenter: Dr. Hannah Prather, National Science Foundation Postdoctoral Research Fellow, Visiting Assistant Professor of Biology at Reed College
Location: Zoom

Have you ever found yourself wandering beneath towering evergreens, wondering about the mysteries of the canopy above you? Nestled amidst the treetops, the forest canopy stands as one of the last biotic frontiers. It is a living tapestry, abundant with an incredible diversity of flora and fauna not found in other layers of the forest. Beyond its biodiversity, the forest canopy plays a crucial role in the ecosystem's functioning and overall resilience. This talk will explore the intricate structures and functions of the canopy, and you’ll discover how it contributes to maintaining biodiversity and ecological balance in Pacific Northwest forests. We’ll explore the unique and innovative methods that scientists use to study these complex arboreal habitats, while gaining appreciation for the beauty, complexities, and irreplaceable significance of the forest canopy!
Register for this Zoom event here. When you register, you'll receive an email with a link to join the session. Please save it!


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, May 16, 7:00 pm
Program: To be Announced
Speaker: To be Announced
Location: Southern Oregon University, Ashland Science Building, Room 161 or via Zoom

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

Friday, May 31, 1:00 pm - 4:00 pm
Field Trip: Identifying Wildflowers of the Cathedral Hills
Trip Leaders: Doranne Long and Amanda Snodgrass, Bureau of Land Management 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, May 11, 10:00 am - 12:00 pm
Meeting/Presentation: In person Chapter Business Meeting and Elections followed by Presentation from Stephanie McKnight, U.S. Fish and Wildlife Service.
Leader: Charmane Mitchell 
Location: Church of Jesus Christ of Latter-Day Saints, 2000 Jackson Street, Port Orford

Ms. McKnight will speak about the Coastal Species Conservation Collaborative, a workgroup of state and federal agencies, non-governmental organizations (including NPSO’s Rare and Endangered Committee), and researchers to focus on conservation of rare coastal species in northern CA and southern OR. The group has identified thirty-eight species of conservation need. Of the thirty-eight species, twenty-seven are plants. Many of these plants have not been surveyed in decades, and we therefore have very little information on the status of these species, the status of populations, what conservation issues they face, and other challenges. She will be leading efforts to survey for many of these species this field season and would love to find some folks (no botany experience needed) to help conduct surveys and learn about coastal species conservation.

A Zoom option is available at:
Meeting ID: 856 2170 6837
Passcode: 353471

Contact Charmane Mitchell at if you have questions.

Saturday, May 25, 10:30 am
Field Trip: Butler Bar
Leader: Olivia Dethlefsen at (Note email as Olivia will be out of town until mid-May)
Location: Near Butler Bar Campground, 22 miles from Port Orford

This plant walk will consist of three legs. First, we will visit a Pacific dogwood located in the campground itself. Next is a short walk on NF-5325, in the direction of Laird Lake, to look at some special plants of interest there. After we walk back past our parking area, there will be an optional third leg, involving a little bit more hiking. We will explore about one to one to one-half mile up NF-5201, following Butler Creek, and then return the same way. This road is closed to vehicles at this time but is fine for walking. There is a patchwork of burn scars and slides, interspersed with less disturbed parts which remain green. We may see a couple new plants on this leg, but the main interest here is the chance to compare the disturbance and regrowth to NF-5325.

The first two legs will be about one-half mile of walking total, with little elevation change. The last leg will be two to three miles total, walking uphill and then downhill on the return. Binoculars are encouraged: one side of the road is a steep, rocky slope, so binoculars will give you a little bit more to look at higher on the cliffs. This forest includes tanoak. To prevent spreading sudden oak death, if you are coming from Brookings, Gold Beach, or Port Orford, it is encouraged to make sure you aren’t tracking in mud or leaf litter from another tanoak forest.

If you are interested in attending this plant walk, please sign up by emailing Julia Bott at as Olivia will be out of town until mid-May. Olivia ( will provide additional details and directions once she returns.

Umpqua Valley

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

Wednesday, May 1, 10:00 am – 2:00 pm
Field Trip: Wildflower Walk in the Woods
Leaders: Tami and Barry Braz, Rod Trotter
Location: 1400 Wendy Mountain Ln, Oakland, Private property of Barry and Tami Jo Braz

We will leave Roseburg at 9:00 am from our native plant garden meet up location near the Westside Community Gardens off Harvard Ave in Roseburg in the United Methodist Church back parking lot near 850 Keady Ct. An alternate meet up location for this field trip only: in Sutherlin at Ford’s Pond on SW Church Rd at 9:20. Ride sharing is encouraged.

Douglas Small Woodlands Association and the Umpqua Chapter of NPSO are co-sponsoring this field trip. Tami and Barry have invited us to tour their Windy Mountain Tree Farm (Previously 3960 Green Valley Rd, Oakland). We will see the culmination of several years of a Natural Resource Conservation Service Conservation Stewardship Project which includes a massive invasive species removal/suppression effort, grass and wildflower plantings, a native plant enhancement and restoration project in action, and a wildflower/pollinator corridor. There will be quite a bit of walking on this outing at different elevations. Bring water/lunch. Contact Donna for information at 541-643-0364.
Saturday, May 4, 9:00 am – 4:00 pm
Event: NPSO Booth at the Master Gardeners Plant Sale and Expo.
Location:  Douglas County Fairgrounds, Roseburg, $3 admission

You will see some new vendors at the indoor show with a lot of garden related items for sale along with hundreds of plants. Stop by our booth and say hello and pick up a free native plant seedling. We also have greeting cards and T-shirts for sale. 
Saturday, May 11, 9:00 am – 3:00 pm
Field Trip: Beatty Creek – Beatty Rock
Location: Lower Cow Creek Watershed and Island Day Use Area
Leader: Rod Trotter

We will leave Roseburg promptly at 9:00 am from our meet up location on Keady Ct.  (See directions in May 1 field trip) We will explore Beatty Rock, a monolithic outcropping of conglomerate in the lower Cow Creek Watershed. This is one of our favorite spots. Ride sharing is encouraged. Parking is limited. We will explore along lower Cow Creek Road. We should see star Solomon’s seal; a rare new catchfly; white, purple and tri-colored iris; Madia elegans; inside out flower; and coast trillium.

The first stop is at the mouth of Beatty Creek, some three miles up Cow Creek Road. There we will amble about the beautiful creek and view the Beatty Rock area. The second stop is 1.8 miles further down Cow Creek Road at the Bureau of Land Management Island Wayside. We usually eat our lunch there. Bring lunch. There is also a maintained public toilet on site. 
Tuesday, May 14, 6:00 pm – 8:00 pm 
Meeting: Chapter Meeting - 6:00 pm -7:00 pm (in person and Zoom)
Presenter:  Dr. Doug Tallamy

Location:  Faith Lutheran Church, 820 Kenwood St, Roseburg (westside parking area behind the church.)

There will be a 7:00 pm -8:00 pm Zoom presentation: “Homegrown National Parks Initiative” with Dr. Doug Tallamy. Come see our nice meeting room. We were unable to view this video in April, so we are moving it forward to May. For questions or Zoom link information, contact Donna 541-643-0364 via phone or text.

Wednesday, May 15, 9:30 am – 2:00 pm
Field Trip:  A Walk in the Woods at Severt Iverson Memorial Park
Leader: Rod Trotter

Location:  Coos Bay Wagon Rd near Tenmile

We will leave Roseburg promptly at 9:30 am from our meet up location on Keady Ct (see directions in May 1 field trip). This is a co-sponsored field trip with Umpqua Chapter NPSO and Douglas Chapter of the Oregon Small Woodlands Association. Iverson County Park has beautiful Tenmile Creek running through it. We have identified several native wildflowers growing there. Fifty-one species were found in May 2023. Bring lunch and a chair if you need one; there is one picnic table. There is a bathroom permanently on site. The trip is mostly level ground with a trail running through the park. We’ll see lots of native flowers.

Saturday, May 18, 8:00 am - late afternoon
Field Trip:  Ragged Ridge
Leader:  Rod Trotter

Location: North Umpqua River near Steamboat Creek

We will leave Roseburg at 8:00 am from our meet up location on Keady Ct (see directions in May 1 field trip). Ragged Ridge is located up the North Umpqua River near Steamboat Creek above 3000 feet in elevation. Participants will be treated to a tour of the Ragged Ridge-Dry Creek area. We will be looking for white iris, buckwheats, sedums, our rare Kalmiopsis fragrans, and a rarely seen lady slipper orchid. Not sure of open facilities. Bring lunch. 
Saturday, May 25, 8:00 am – 5:00 pm
Field Trip: Lower Twin Lake
Leader: Rod Trotter

Twin Lakes Trail is a three and one-half mile lightly trafficked loop trail located near Idleyld Park, Oregon that features a lake and is rated as moderate. The trail offers several activity options. We will have more information regarding this trip in an updated field trip schedule as the date gets closer.

Reservations are required; call Rod Trotter at 541-672-1907 or M. A. Hansen at 541-863-8111 at least one day before the field trip. Contact Rod or M. A. 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.

We would like to send you a 2024 Tentative Field Trip Schedule from Umpqua Chapter if you are not on our email notification list.  

Willamette Valley

Saturday, May 11, 10:00 am and 11:00 am
Sunday, May 12, 10:00 am and 11:00 am
Field Trip:  Silver Falls State Park
Location:  Meet at the South Falls Stone Circle at 10:00 am or 11:00 am on Saturday or 10:00 am or 11:00 am on Sunday for the start of the walks
As part of the Silver Falls State Park Mother’s Day Birding and Wildflower Festival, members of the Willamette Valley Chapter of the NPSO will lead one-hour wildflower walks near the South Falls. For more information about the festival, call 503-873-8681 or visit
Saturday, May 18, 10:00 am – 1:00 pm
Field Trip:  Kingston Prairie Preserve
Join members of the Willamette Valley Chapter of the NPSO and the Greenbelt Land Trust to view the blooming wildflowers at the Kingston Prairie Preserve southeast of Stayton. The preserve is one of the best examples of native prairie remaining in the Central Willamette Valley. Bring water, snacks, and sturdy walking shoes. Registration is required. To register and for more information, please contact 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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