State & Chapter Events

Updated 20 May 2018

Click a chapter name, or scroll the entire list.
State Filipendula Siskiyou
Blue Mountain High Desert South Coast
Cheahmill Klamath Basin Umpqua Valley
Corvallis Mid-Columbia Willamette Valley
Emerald Portland William Cusick


June 1–3, 2018 Friday–Sunday
NPSO Annual Meeting 2018 The next Annual Meeting will be co-hosted by the Portland and High Desert Chapters. For more details and registration, please visit here.

Blue Mountain

For information on Blue Mountain Chapter call Jerry Baker,541-566-2244. To get on our email list, contact


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
Meeting and work party location:
Carnegie Room, McMinnville Public Library, 225 NW Adams St. (corner of Highway 99W and SW Second St.), McMinnville. The library parking lot may be entered from either Adams or Second street.
Field trip meeting location:
Corner of SE Linfield Ave. and Blaine St., McMinnville. To get there, take Hwy. 99W in south McMinnville, turn at Great Harvest toward the Linfield College campus on Linfield Ave. Park on the street.
May 19, June 23, July 28, Saturdays, 9–11 am
Work Party: Native Plant Garden. Please note our work party time will change in April. Work around the Carnegie Building with a congenial crew to maintain the beauty of this demonstration garden. Bring gloves, bucket, and gardening tools if you have them. Location: McMinnville Public Library, see above for details. For more information, contact Catie Anderson at or 503-435-2401.
May 5, Saturday, 9 am
Field Trip: Deer Creek Park. See progress on wetland prairie restoration including Lupinus sulphureus ssp.kincaidii. Dave Hanson, park steward and past president of Cheahmill Chapter, will explain the hydrology of the still-wet site, which is being restored to its original state after agricultural disturbance. Be prepared to walk through watery areas. Location: meet no later than 9 am at SE Linfield Ave. and Blaine St., McMinnville. See above for directions. Or meet at the park at 9:45 am. For more information, call Dave at 503-843-4338.
May 12, Saturday, 9 am
Field Trip: The Butte. Cheahmill past-president, Dave Hanson, will lead this moderate hike to The Butte, an Area of Critical Environmental Concern. The Butte has an elevation of 1,407 feet and is situated approximately 8 1/2 miles due west of the city of McMinnville, between the waters of Muddy Creek and Deer Creek. It is not normally accessible by the public. Hikers will pass through a stand of 200 –400 year-old Douglas firs. Be prepared to do some off-trail bushwhacking. Location: meet no later than 9 am at SE Linfield Ave. and Blaine St., McMinnville. See above for directions. For more information, contact Dave at 503-843-4338.
May 26, Saturday, 10 am –3 pm
Community Event: Wildflower Show and Native Plant Sale. The Cheahmill Chapter will celebrate its 20th anniversary this year at this wildflower show. Chapter members scour Yamhill County for native plants, as many as possible in bloom, and fill the Carnegie Room of the library with color and fragrance. Species are identified by Latin name, common name, and plant family. Buy locally grown native plants and tour the native plant garden, which may offer some surprises this year. Location: McMinnville Public Library, see details above. Free admission. For more information, contact Marna Porath at or 971-267-0058.


For questions, information on upcoming events, or to be on the Corvallis chapter e-mail list, contact Find us on Facebook at
May 5, Saturday, 9:30–11 am
Field Trip: Woodpecker Loop at Finley Wildlife Refuge. Meet at the trailhead. For more information, contact Esther: or 541-754-0893.
May 12, Saturday, 8 am
Field Trip: Gerdemann Botanic Preserve. This private botanical garden in Yachats contains rare and unusual plants found in moist temperate regions of the world. The site is a 3.5 acre natural Sitka spruce/western hemlock forest with many native species and is richly under-planted with botanical specimens. The Preserve contains significant collections of magnolia and camellia, as well as Jim Gerdemann's hand-crossed tropical vireya rhododendrons. With luck, we will catch Clintonia andrewsiana, the redwood’s clintonia, in bloom. The Gerdemann public trail passes through a wooded hillside facing the Pacific Ocean. Bring lunch and water, dress for the weather, and wear sturdy shoes. Location: meet for carpooling at the OSU Wilkinson Hall parking lot, southwest of the Beanery at 26th and Monroe. For more information and to RSVP, contact Dan Luoma: 541-752-8860 or
May 14, Monday, 7:30 pm
Meeting: Screening Native Willamette Valley Wildflowers for Attractiveness to Pollinators and Natural Enemies. Aaron Anderson is fascinated by native beneficial insect conservation. He will speak on understanding how such species use urban green spaces as habitat, which can then inform us how to manage these areas. Location: Cordley Hall, room 2087 on the OSU campus. For more information, contact Judi:
May 26, Saturday, 9 am–mid afternoon
Field Trip: Lower North Ridge. Wear weather-appropriate clothes and sturdy shoes; bring lunch and water. Location: meet for carpooling at the OSU Wilkinson Hall parking lot, southwest of the Beanery at 26th and Monroe. For more information, contact Esther: or 541-754-0893, or Louise: or 541-753-0012.


Visit the Emerald Chapter Web site to learn more about the latest chapter events, plant lists and botanical information about Lane County plants and the people who love them.
Meeting location: The venue for programs this season is the Amazon Community Center at 2700 Hilyard St. in Eugene. Go to the M.L.I. Room in Building "C."
May 13, Sunday, 9 am–noon
Field Trip: Wildwood Falls and Lasells Stewart Park. These two Lane County Parks are located on opposite sides of the Row River at scenic Wildwood Falls, southeast of Cottage Grove in the foothills of the western Cascades. Though only about 20 acres combined, the two parks have a diverse flora because of forest, riparian, and rock outcrop habitats. If there is interest, in the afternoon we can participate in the Bikes to Blooms event occurring nearby along the Row River Trail. Location: meet at 9 am at 19th and Patterson in the South Eugene High School parking lot. For more information, contact Ed Alverson, 541-461-1958.
May 19, Saturday
Volunteer: Mount Pisgah Arboretum Wildflower and Music Festival. Help to collect, identify, and set up flora displays. We will start at 9 am and continue throughout the day. Please contact Matt Groberg at 541-954-5334 if interested.
May 20, Sunday, 10 am–5 pm
Event: Mount Pisgah Arboretum Wildflower and Music Festival. NPSO needs volunteers for the information booth. Contact Matt Groberg at 541-954-5334 if interested. Location: Mount Pisgah Arboretum, White Oak Pavilion. Directions: in South Eugene go east from I-5 at 30th Ave. and follow Seavey Loop Road to Mount Pisgah. For full Festival details, visit
May 23, Wednesday, 4:30–6:30 pm
Wildflower Walk: Middle Fork Trail Spring. Fraser MacDonald, natural resources planner for Willamalane Park District, and Dave Predeek of NPSO lead a 3 mile walk from Dorris Ranch through the woods and along the river. Flora includes lilies, Indian paint brush, Oregon geranium, and many others. Bring drinking water. Location: meet at the Middle Fork Path trailhead at Dorris Ranch. In Springfield drive south on Pioneer Parkway and cross Main St. Continue south for another mile to the Dorris Ranch entrance gate. For more information call Dave at 541-345-5531.
June 9, Saturday, 9 am
Field Trip: Horse Rock Ridge. Alan Curtis leads a 3 mile hike to a steep, rocky meadow high in the Coburg Hills north of Springfield. Enjoy wonderful views of the surrounding countryside and great botanical diversity. Bring water and lunch. Location: meet at 19th and Patterson in the South Eugene High School parking lot. For more information, contact Alan Curtis at


This is a newly formed chapter for the northern Oregon coast area. For more information, visit our Facebook page: NPSO-Filipendula Chapter, or contact Field Trip Chair Carla Cole,

High Desert

For information, visit the High Desert Chapter website, Facebook page: 'Native Plant Society of Oregon: High Desert Chapter', or email

Klamath Basin

For information, visit the Klamath Basin Chapter website: or contact the chapter president, Kim Elliott


For information on the Mid-Columbia Chapter, contact Sara Wu at
May 17, Thursday, 7 pm
Meeting: Science behind the Eagle Creek Fire Response. Steven Sobieszczyk, a hydrologist with USGS, will give a presentation. He was part of the BAER (Burned Area Emergency Response) team that explored the impacted area to assess the potential long-term effects of the Eagle Creek Fire of 2017. Location: Building One, Room 1.354, Columbia Gorge Community College, 400 E. Scenic Drive, The Dalles.


If you would like to receive the semi-official Chapter e-mail newsletter, The Calochortus, e-mail Don Jacobson.

Facebook: Take a look at our Facebook page. Native Plant Society of Oregon-Portland-Chapter. It will have the most up-to-date information on hike and other events as well as great plant pictures.

The Portland Chapter meets the second Thursday of most months. Meetings and programs begin at 7:00 pm. MEETING PLACE: Copeland Commons, TaborSpace at Mt. Tabor Presbyterian Church, 5441 SE Belmont St., Portland. Enter the church through the main door off Belmont and turn right to enter the room. Parking is available in the church lot on the NW corner of SE 54th and Belmont.

May is Native Plant Month PDX 2018
Events are included below but for more details, please see Native Plant Month PDX website.
May 2, Wednesday
Field Trip: Canemah Bluff, Oregon City. Join us for a tour of Metro’s Canemah Bluff Natural Area. It features restored meadows full of camas, lilies, rosy plectritis, and oak and fir woodlands with many other native plants. Metro’s science team has removed invasive plants and thinned trees to help restore the oak habitat. Location: meet at 815 4th Ave., Oregon City. Limited to 12 people; parking is very limited so please carpool. To sign up and for more information, contact leader Jason Clinch, or 503-706- 2404.
May 5, Saturday, 10-11:30am
Guided Local Native Plant Walk: Exploring the Plants of Tryon Creek Under a canopy of beautiful Douglas-fir, western hemlock, bigleaf maple, and red alder, explore the native plants of Tryon Creek State Natural Area. While highlighting the important native plants of this park, the walk leaders – Deborah Hill and Roland Begin (Tryon Creek SNA) and Zak Weinstein (NPSO) – will share insights about forest and ecological succession: how some tree species become dominant after shorter-lived ones die. This walk is part of a series of weekly Saturday guided walks organized by the park and geared for ages 5 and above. There will be two walks held simultaneously, one for families and one for adults without children. Meet at the park visitor center. No registration required. For more specific information, call (503) 636-9886 ext. 225. Event co-sponsored with Tryon Creek State Natural Area.
May 9, Wednesday, 6–8 pm
Field Trip: Marquam Nature Park. Attune your senses to the beautiful native plants commonly found in the understory of our area's woodland and forest habitats. Geared for the novice-level native plant enthusiast, this hike is an opportunity to start becoming familiar with the native flora in Marquam Nature Park. We will cover a 1.2 mile loop with about a 300 ft. gain, on a trail that may be muddy. This hike will be held rain or shine. Limited to 6 participants. To register and for more information, contact leader Brenda Hamilton at
May 10, Thursday
Program: Geobotanical Wonders of Central Oregon. Oregon’s diverse plant life is a result of its diverse geology. Explore the wide variety of Central Oregon's botanical treasures and learn how they relate to the surrounding landscape. Dr. Stu Garrett will take us on an armchair tour of the rise of the Cascade Mountains, glacial sculpting of the ice ages, the Great Sandy Desert, and dramatic lands of lava. You will learn about some of Oregon’s rarest plant species, including ones found only in Crook County. Location: TaborSpace at Mt. Tabor Presbyterian Church, 5441 SE Belmont St., see above for details.
May 11, Friday, 8 am
Field Trip: Cape Horn, Skamania, Wash. We will hike from Salmon Falls Rd. Park and Ride on Hwy 14 to Nancy Russell Overlook and back. This is a moderate hike of 5 miles round trip with a 700 ft. gain and some difficult footing. Lush woods, fantastic views, and a wealth of spring wildflowers. Location: meet near Gateway Park and Ride in Portland at 8 am to carpool or at the trailhead at 9 am. Contact leader Willow Elliott for more information: or 503-358-5848.
May 13, Saturday, 9am - 5pm
Field Trip: Native Wildflowers in the Charcoal Forest, Mt Hood National Forest Spend Mother’s Day with native wildflowers in an area of Mt. Hood National Forest recently affected by wildfire. Experience the burst of green abundance that frequently follows fire. Hike leaders Rachel Freifelder and Lo Goldberg have many years of experience as forest ecologists, and Rachel studied fire ecology as a graduate student at Stanford University. Zak Weinstein of the Native Plant Society of Oregon will add expertise on the plants we see. Co-sponsored with Bark.

Space is limited. Click here for registration information and more details.

May 15, Tuesday, noon–1 pm
Urban Lunch Hour Walk: Tanner Springs. In this sunny “restoration ecology” setting in Tanner Springs Park, the parks department has gathered together some delightful native wildflowers you would have to travel far to see in their natural haunts. Leader Rick Shory has worked throughout the West as a Forest Service botanist. He will provide insights on the native plant species as we walk. Registration required; for more information and to register, visit
May 19, Saturday, 9am - 4pm
Native Plant Keying Workshop, Reed College Description: Botanical keys can be very daunting. This one-day class will teach you how to use a key to identify live or pressed plants. The first part of the day will be with plants in a classroom, learning how to read a key and getting familiar with basic technical vocabulary. The class will be highly interactive, to get you the knowledge you need to improve your keying skills. Later, you’ll take your knowledge into the field, bringing your flora with you and keying out plants in their native habitats. Fee of $10 to cover materials. Bring a copy of Hitchcock & Cronquist’s Flora of the Pacific Northwest if you have one. Please register by emailing Alix Danielsen at: You will receive more detailed information about the workshop when your spot is reserved.
May 20, Sunday, 1:30-3:30pm
Guided Local Native Plant Walk: Oaks Bottom Join us on an NPSO outing to learn about native plants in Oaks Bottom Wildlife Refuge, a beautiful slice of nature nestled along the east bank of the Willamette River in Southeast Portland. You will have an opportunity to become familiar with characteristics as well as ecological and ethnobotanical roles of a wide array of species commonly found among the wetlands and bluffs of the Willamette River, and learn about restoration efforts underway at this site. Participants will be split into small groups led by the collaborating hike leaders Claire Carder, Brenda Hamilton, Sam Sharka, and Zak Weinstein. The refuge is easily accessible by bike and public transportation.

Walk will be held rain or shine. Space is limited; registration is required. Click here to register.

May 27, Sunday, 8:30 am
Field Trip: Riverside Trail. We will hike along the Clackamas River, a mostly flat 7.8 miles round trip from Rainbow Campground to Riverside Campground and back. This tour is oriented towards beginning native plant enthusiasts and will be at a moderate pace. Please do some research and be prepared to tell us about one plant species or other aspect of natural history. We’ll see wetland species and ancient forest floor spring ephemerals as we cross many tributary creeks to this river that supplies drinking water to some Clackamas County communities. Leader: Mary Vogel. Location: meet at Gateway Transit Center Garage. Sign up or ask questions on the NPSO Portland Meetup:
May 31, Thursday, 10am-2pm
Stewardship Event: Invasive Plant Removal at Ainsworth State Park Help protect native plants and promote a healthy ecosystem by removing and mitigating the spread of invasive plants at Ainsworth State Park, an area affected by the Eagle Creek fire. No experience is necessary, and tools will be provided. Please come dressed for the weather and wearing sturdy, closed-toe shoes, and get ready to have fun! Event led by Friends of the Columbia Gorge.
Please note: Ainsworth State Park is currently closed to the public due to the Eagle Creek fire. As a result, space is limited to advanced registrations and the event cannot accommodate day-of volunteers. Click here for more details and to register.
May 31, Thursday, 6:30-9:30pm
Botanical Illustration and Crafting with Stitch & Pitch Come explore your crafty side at Stitch & Pitch, a monthly craft night fundraiser! From 6:30-7:30, we have a special guest artist who will be teaching botanical illustration with live cuttings of some of our beloved native plants at each table. After 7:30, you can continue to draw, bring your own project to work on, or be inspired by the arts and craft supplies we provide. Knit, sew, draw, color, bead, collage… or do something else entirely! Expert crafters will be available to teach skills, and there will be a “Hand-Made Market” of goods made by our community members. Snacks will be provided, and you are welcome to bring food or drink to share. All proceeds this month will go to the Portland Chapter of the Native Plant Society of Oregon to support future Native Plant Month education and outreach activities. Event sponsored by Stitch & Pitch.
Space is limited. Click here to register.
June 9, Saturday, 9 am–4:30 pm
Field Trip: Larch Mountain. This is a moderate to strenuous hike of an approximately 7 mile loop with a gain of 1,300 ft. through mostly forest and some riparian habitat. We will view wildflowers that have emerged within the last several weeks from the recent snow melt. Bring lunch and water. Contact leader Ron Klump,, for more information or to sign up for the hike.
June 10, Sunday
Field Trip: Hot Springs Fork, Collawash River. We will hike 8.6 miles round trip to a viewpoint (or less if the group desires). Lots of rhododendron on this trail. For those wanting to soak at the end, bring bathing suit and $5.00. This tour is oriented towards beginning native plant enthusiasts and will go at a moderate pace. Please do some research and be prepared to tell us about one plant species or other aspect of natural history. Leader: Mary Vogel. Sign up or ask questions on the NPSO Portland Meetup:
June 14, Thursday, 7 pm
Program: Colorful Desert Jewels. Ginny Maffitt will give us a review of the 2018 American Penstemon Society meeting in Nevada. She will share photos from field trips into the red rock canyons and desert habitats as well as the Springs Preserve Botanical Garden where Las Vegas got its start. She will also tell us about her long project to have a rare Penstemon, found only in the Tualatin Valley, listed as a new species! Location: TaborSpace at Mt. Tabor Presbyterian Church, 5441 SE Belmont St., see above for details.
June 15, Friday, 5:30–8 pm
Field Trip: Green Infrastructure Bike Tour. For a trip preview, review the Stormwater Cycling Tour brochure, available online at, though we won’t do the whole 13 mile tour—or even to follow it exactly. Leader: Mary Vogel. Location: meet at the parking lot by SE Madison and SE Salmon (east of the Esplanade).
June 16, Saturday
Field Trip: Saddle Mountain. We will hike 5 miles round trip with a 1,600 ft. gain, at a botany pace (slow). This botanic gem near the coast has myriad species, including Dodecatheon dentatum, Corydalis scouleri, Allium crenulatum, Lewisia columbiana, Sidalcea hendersonii, Polypodium scouleri, and Saxifraga caespitosa. If we make it to the summit and the weather cooperates, we’ll be treated to a view from Mt. Rainier to Mt. Jefferson. Plan for a full day. 160 mile round trip drive from Portland. To sign up, contact leader Rick Shory: or 503 253-8100.
Save the Dates!
June 23–24, Saturday–Sunday
Field Trip: Black Wolf Mountain/Anvil Lake
June 30, Saturday
Field Trip: Sister Rocks, Trapper Creek Wilderness


To join the Siskiyou Chapter email list: Send an email, from the address at which you want to receive announcements, to No subject or message is required. You will get a confirmation email. If you would like to volunteer to lead a hike in 2018, make a suggestion, or provide feedback regarding the field trip program, please contact Julie Spelletich at: Join us on Facebook at:
May 20, Sunday
Field Trip: Limpy Botanical Trail NPSO and KS Wild will co-lead this hike, which features a high diversity of native plant species influenced by serpentine geology. The easy, one-mile hike will travel through a variety of unique habitats, passing by sweet smelling azaleas (Rhododendron occidentale) and fields of blue camas (Camassia quamash) blooming, amongst 250 other plant species recorded in this location. Location: parking at the trailhead is limited - meet at the Selma Rays at 10:30 am to carpool to the trailhead. A carpool will also be leaving from Rays parking lot in Talent at 9:30 am. For more information or to sign up please contact Katelyn Detweiler at For general info:
May 27, Sunday, 9 am
Hike: Horseshoe Ranch Wildlife Area. Join Sheri Hagwood from California Department of Fish and Wildlife (CDFW) for a hike around Horseshoe Ranch Wildlife Area in Siskiyou County, Oreg. and within the expanded Cascade-Siskiyou National Monument. The Horseshoe Ranch Wildlife Area is comprised of approximately 5,000 acres of CDFW property, supplemented by an additional 4,000 acres of BLM lands. Formerly a working cattle ranch, the terrain consists of rolling to steep hills of shrubs, oaks and conifers surrounding Scotch Creek and several of its tributaries. See how native flora has made a comeback on the ranch since it was designated as a wildlife area by the Fish and Game commission in 1977. Location: The trailhead has limited parking; meet Sheri at the gas station in Hornbrook at 9 am, then it’s about a 30 minute carpool to the trailhead. There is day pass fee of $4.32 per person. For more information or to sign up please contact Katelyn Detweiler at

Umpqua Valley

Visit for more information on chapter activities or to be added to our email list. Check out our Facebook page, Not online - call Donna Rawson 541-459-2821.
We are finalizing plans for our tentative schedule of field trips below. This information is subject to change, please call Donna Rawson at 541-643-0364 or check our Facebook page ( for final details.
May 12, Saturday
Field Trip: Ragged Ridge, North Umpqua Hwy
May 19, Saturday
Field Trip: Callahan Meadows, Tiller
May 26, Saturday
Field Trip: Eight Dollar Mountain, Selma, Josephine County
June 2 or June 9, Saturday
Field Trip: Cougar Bluffs, Mace Mtn area

Willamette Valley

For program information, contact John Savage at 503-399-8615
May 12, Saturday, noon–4 pm
Wildflower Walk: Silver Falls State Park Meadow. John Savage of the Willamette Valley Chapter and Catherine Alexander of the Straub Environmental Center and David Douglas Society will lead a family-friendly hike to view the camas, cluster lilies, monkey flowers, and other native plants in a remote meadow at Silver Falls State Park. This is a rain-or-shine event. Bring water, snacks, and appropriate foot gear and clothing for wet conditions. Location: meet at noon in the Willamette Heritage Center parking lot, 1313 Mill Street SE, Salem to carpool or at 1:15 pm in the South Falls Lodge parking lot at Silver Falls State Park. Cost: $5 suggested donation per person (free to members of NPSO and the David Douglas Society) or $10 suggested donation per person if you ride in the shuttle van from the Heritage Center. Limited to ten participants, ages 10 and older. Pre-registration is required. To register and for more information, contact John Savage, or 503-779-5414.
May 17, Thursday, 6–7 pm
Nature Talk: The History of Botanical Art. Since ancient Egypt, artists around the world have produced beautiful and accurate pictures of plants to identify and pass on knowledge for medicinal, culinary, warfare, and material purposes. Learn about the fascinating history of botanical art from noted artist Janet Parker. Parker will also share information about the Worldwide Day of Botanical Art, which will take place on May 18, 2018. Parker is founder and President of Oregon Botanical Artists and received her botanical art certification from the prestigious New York Botanical Garden. Salem-based botanical artist Aislinn Adams will join Parker to offer her thoughts on botanical art through stories about her personal pathway to becoming an illustrator. Reception to follow. Location: Eco Hub, 1313 Mill Street SE, Salem, at the Willamette Heritage Center. Cost: $5 suggested donation per person at the door. Seating is limited. No registration or RSVP required. For more information, contact John Savage, or 503-779-5414.

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.
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