Flora of the Pacific Northwest, 2nd Edition
Burke Museum Herbarium & University of Washington Press
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Revised Treatments

Corrections, revisions, updates and additions made to treatments following publication of the 2nd Edition are listed here with links to PDFs.

Last entry added on 28 May 2021.

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Aceraceae: Aceraceae segregated from Sapindaceae and Hippocastanaceae. Covers genus Acer only.
Posted on 4 Dec 2020.
key to genera: Changes to key: Sarcocornia from original key has been synonymized within Salicornia here.
Posted on 28 Apr 2020.
Salicornia: Sarcocornia synonymized within Salicornia; Salicornia pacifica replaces Salicornia/Scarocornia perennis as the correct name for the perennial species of coastal western North America (Piirainen et al., 2017. Taxon 66(1):109-132).
Posted on 11 May 2020.
key to genera: Revised key includes Sphenosciadium synonymized within Angelica (key to fruits lead 5a; key to vegetative parts lead 25b); correction to key to fruits in leads 36a through 38a (Cicuta, Oenanthe, Sium), including addition of Sium fruit (lead 37a).
Posted on 28 Apr 2020.
Angelica: Revised key includes A. capitellata (previously treated as Sphenosciadium capitellatum in original Apiaceae treatment).
Posted on 29 Apr 2020.
Carduus: Key revised to add Carduus crispus and C. cinereus.
Posted on 28 Apr 2021.
Doellingeria: Eucephalus synonymized within Doellingeria based on recent molecular studies.
Posted on 28 May 2021.
Berberidaceae: Changes to treatment: Mahonia is recognized as distinct from Berberis; key to genera revised to incorporate Mahonia; Mahonia genus description provided, along with key to Mahonia species in the flora region.
Posted on 15 May 2020.
Opuntia: Opuntia phaeacantha, a southwestern US introduction established in Klickatat County, WA, is added to the updated Opuntia key here.
Posted on 5 Jan 2021.
Hippocastanaceae: Hippocastanaceae segregated from Sapindaceae and Aceraceae. Covers genus Aesculus only.
Posted on 4 Dec 2020.
Iris: Key reworked and revised to add Iris versicolor.
Posted on 28 Apr 2021.
Lamium: Lamiastrum synonymized within Lamium based on molecular evidence: Lamiastrum galeobdolon treated here as Lamium galeobdolon and included in Lamium key.
Posted on 18 Dec 2020.
Stachys: Key revised to add Stachys palustris, a Eurasian species sparingly established in northern ID and southwest BC.
Posted on 28 Apr 2021.
Trillium: Trillium ovatum var. hibbersonii is elevated to the rank of species.
Posted on 27 Apr 2021.
Calandrinia: The name Calandrinia ciliata is misapplied in the Pacific Northwest (Hershkovitz 2006). The correct name is C. menziesii, which is used in the revised treatment here.
Posted on 5 Jan 2021.
Rhinanthus: Key revised to indicate ssp. minor is introduced, and clarify distributions.
Posted on 28 May 2021.
Veronica: Key revised to incorporate Synthyris within Veronica.
Posted on 28 Apr 2021.
Aristida: Key revised to add Aristida basiramea, a weedy introduction established in central Idaho.
Posted on 28 Apr 2021.