Rare Plant Conference, Rare Plant List, and Working Groups

31st Idaho Rare Plant Conference

 Idaho Native Plant Society 

Held at Idaho Dept. of Fish and Game

15950 N. Gate Blvd

Nampa, Idaho 83687

February 28 – March 2, 2023

The Idaho Native Plant Society’s Rare Plant Conference is usually conducted every other year as a three day, in-person conference where issues related to Idaho’s flora are discussed and Idaho’s rare plants are ranked to determine their protection requirements.

View the Final Agenda HERE! 2023_RPC_Agenda_FINAL                                                                                                                 

TUESDAY (start @ 11am) -THURSDAY (end @ 1pm, plus field trip 1-5pm) General Schedule of Events

Includes scientific presentations, agency updates, plant ranks, conference materials, all snacks and hot beverages during the conference, poster display, a tentative field trip and SWAG! 



11am-1pm- Registration and lunch social opportunity

1pm-2:15pm- Opening remarks, keynote address, logistics, and herbarium update

2:15pm-4:25pm- Agency updates

5:30pm -8pm- NO HOST dinner at Fiesta Guadalajara, Nampa



8:30am- 8:50am-  Opening remarks and announcements

8:50am-10:40am- Plant Community Conservation

10:40am-4:30pm- Rare Plant Species Conservation Ranking

4:30pm-6pm- Poster Session and Social

6pm-7pm- Banquet Dinner provided by Kanak Attack Catering will be held at Idaho Dept. of Fish and Game (Nampa). 

7pm-8:30pm- Banquet speaker, Dr. Cathy Cripps, PhD , Mycologist Montana State University. Her talk will be “A tour of high elevation fungi and mycorrhizal associations with whitebark pine and other high elevation species.” 

_______________________________________________________________________                                            THURSDAY, MARCH 2nd 

8:30am-8:35am-  Opening remarks and announcements

8:35am- 10:25am- Plant and Plant Community Conservation

10:25am-12:45pm- Rare Plant Species Conservation Ranking, Logistics, and Closing Remarks

1pm-5pm- Field Trip (weather permitting) Led by Barbara Ertter. Getting a Jump on Spring. Location TBD.

5:30pm- 8pm- Attend a NO HOST, casual dinner on Thursday evening at the Brick 29, Nampa


If you would like to become an INPS member join online at www.idahonativeplants.org 

Our last conference, in 2022, was online Monday, February 28, – Tuesday, March 1, 2022.  The agenda along with handouts and species accounts can be found below for RPC 2022.

Handouts from the 2022 Conference:
Northern Idaho Rare Plant Working Group Species Accounts:

Botrychium hesperium Species Account NIRPWG 2020-01-12                                           Calliergonella cuspidata Species Account 2022-01-18                                                                            Carex lacustris Species Acct 2022-01-18                                                                                                 Carex limosa Species Account 2021-12-14                                                                                              Carex sychnocephala Species Acct 2022-01-18                                                                                    Carex tenera Species Account 2022-02-18                   Carex_podocarpa_Species_Account_2021-01-12                                                                      Cryptogramma stelleri Species Account 2021-01-12                                                                                Eleocharis mamillata ssp. mamillata Species Acct 2021-02-10                                                          Elymus hirsutus Species Acct 2021-01-12                                                                                                            Mitella trifida Species Acct 2022-02-10                                                                                                                Monarda fistulosa var. menthifolia Species Acct                                                                Muhlenbergia racemosa Species Account 2022-02-16                                                        Porotrichum bigelovii Species Acct 2021-02-10                                                                                    Silene spaldingii Species Account 2022-01-18                                                                            Sphagnum platyphyllum Species Acct 2021-02-10

Southern Idaho Rare Plant Working Group Species Accounts:

Ammannia robusta_Species_Account_20201209
Astragalus mollissimus var. thompsoniae_Sp_Accnt_20220217
Orthocarpus holmgreniorum_Sp_Accnt_2022_02_23
Phacelia scopulina Sp_Accnt 2022_02_17
Pogogyne serpylloides-Sp Acnt 2022_02_17
Solidago nana_Sp_Accnt_2022_02_21

The 29th Rare Plant Conference was February 25-27, 2020
sponsored by the Idaho Native Plant Society
led by co-chairs: Anne Halford and Jennifer Miller
Theme: Conservation in Idaho and Beyond

The Idaho Rare Plant Conference (RPC) is generally held every other year, and is organized by INPS along with various agencies (such as Bureau of Land Management, Idaho Department of Fish and Game, US Fish and Wildlife Service, Forest Service, etc.), academics, consultants, and others interested in Idaho’s rare plants.

It is an opportunity to learn about rare plants, share information, and network with others of similar interests.

Updating the INPS Rare Plant List, based on new information, is a substantial portion of the RPC. In addition, there are usually a number of talks/presentations on rare plants, conservation issues, or related topics. Dinners (either banquet or informal gatherings) along with conference breaks and poster session offer opportunities to renew or make new botanical acquaintances. Sometimes a field trip has been part of the RPC.

Rare Plant List and INPS Rare Plant Working Groups

Updating the

Idaho Rare Plant List

begins with the

Rare Plant Working Groups.

Past Conferences and Keynote Speakers

  • 2018—Salmon R. Mountains penstemon, Penstemon salmonensis
  • 2016—Packard’s milkvetch, Astragalus cusickii var. packardiae, was our highlighted species.
  • 2014—Barbara Ertter, Consumers’ Guide to On-line Floristic Data—2014_RPC_Agenda
  • 2011—No Keynote Speaker, Focus on Rare Plant List Update—RPC2011_Agenda
  • 2009 — Del Wiens, Plant Associations of Africa
  • 2007 — George Wuerthner, WILDFIRE A Century of Failed Forest Policy
  • 2006 — Bob Moseley, Plant Conservation in the Tibetan Borderlands
  • 2005 — Bruce Welch, Countering Misinformation Concerning Big Sagebrush