Tag Archives: Oregon

Lupinus cusickii ssp. abortivus (Greene) B. J. Cox

Sewage Lupine (Lupinus cusickii ssp. abortivus)

Cusick’s Lupine (Lupinus cusickii S. Watson) (see photo below), an Oregon endemic, is a small, blue-purple flowering species that prefers to grow on eroding mountain slopes. The species can be divided into at least three varieties, all of which are critically endangered. 

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This variety, named for the type location (near stinking water), was endemic to northern Harney County, where the last plants were found in 1896; it is now very likely extinct.

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syn. Lupinus aridus var. abortivus (Greene) C. P. Sm.

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Cusick’s Lupine (Lupinus cusickii); nominate form

Photo: Carmel Cameron
https://www.inaturalist.org/people/carmel34
https://creativecommons.org/licenses/by-nc/4.0/

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References: 

[1] Robert J. Meinke: Threatened and endangered vascular plants of Oregon: An illustrated guide. U.S. Fish and Wildlife Service, Office of Endangered Species, Region 1. 1982 

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edited: 11.02.2024

Eremogone franklinii var. thompsonii (M. Peck) R. L. Hartman & Rabeler

Thompson’s Sandwort (Eremogone franklinii var. thompsonii)

Franklin’s Sandwort (Eremogone franklinii (Douglas ex Hooker) R. L. Hartman & Rabeler) (see photo) is a quite widespread cushion-forming plant species that occurs in the western USA.

The variety discussed here, however, is known only from the type that was collected in the 1930s somewhere in Gilliam County in Oregon, USA. It may be extinct, however, it was found once in the 1980s in Benson County, Washington so may in fact be still existing.

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Franklin’s Sandwort (Eremogone franklinii), nominate race

Photo: Matt Lavin

(under creative commons license (2.0))
http://creativecommons.org/licenses/by-sa/2.0

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edited: 14.04.2019

Ciconia maltha Miller

La Brea Stork (Ciconia maltha)

The La Brea Stork was described in 1910, originally based on fossil bones that were recovered from the rich La Brea Tar Pits in California, USA; however, the species was for more widespread and is now known to also have occurred in other parts of what today is the USA.

The species already appears in Late Pliocene deposits and disappeared at the end of the Pleistocene, but the population that inhabited the island of Cuba apparently survived well into the Holocene era and may even have been eradicated by the first human settlers.

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edited: 19.8.2022

Argynnis callippe ssp. ‘Willamette’

Willamette Fritillary (Speyeria callippe ssp.)

The Willamette Fritillary is an undescribed subspecies of the Callippe Fritillary (Argynnis callippe Boisduval) (see depiction below) that apparently was restricted to the Willamette Valley in northwestern Oregon, USA.

The form is now considered extinct.

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Calippe Fritillary (Argynnis callippe ssp.); unspecified subspecies

Depiction from: ‘Willian H. Edwards: The Butterflies of North America. Boston: Houghton, Mifflin 1884-88’  
(not in copyright)

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edited: 02.02.2024

Astragalus kentrophyta var. douglasii Barneby

Douglas’ Thistle Milkvetch (Astragalus kentrophyta var. douglasii 

The Thistle Milkvetch is a very thistle-like member of the legume family, the species includes around seven varieties which are distributed over a wide range of the southern USA. 

The variety discussed here was described in 1964, it was restricted to a small area on the Colombia River at the boundery of Umatilla County in Oregon and Walla Walla County in Washington, USA.

Douglas’ Thistle Milkvetch hasn’t been collected since 1883, its habitat having been destroyed by dam projects and the plant is now considered extinct.

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The photo below shows another variety, probably the nominate form.

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References: 
[1] Astragalus kentrophyta Gray var. douglasii Barneby. Field Guide to Selected Rare Vascular Plants of Washington. Washington Natural Heritage Program and U.S.D.I. Bureau of Land Management 2005

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Thistle Milkvetch (Astragalus kentrophyta); nominate form

Photo: Matt Lavin
http://creativecommons.org/licenses/by-sa/2.0

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edited: 19.09.2019

Plagiobothrys lamprocarpus (Piper) I. M. Johnston

Shiny-fruited Allocarya (Plagiobothrys lamprocarpus)

The Shiny-fruited Allocary, also known as Shiny-fruited Popcornflower, was described in 1932; it is known from one collection that was made in 1921 near Grants Pass in Josephine County of Oregon, USA.

The species was never found again and is believed to be extinct.

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edited: 27.02.2024

Paraleptophlebia placeri Mayo

Placer’s Prong-gilled Mayfly (Paraleptophlebia placeri)  

This species was described in 1939.  

The species appears to have been quite widespread, it was originally found in at least three sites: Amador Creek, Dry Creek, Grass Valley Creek, and Jackson Creek in the Amador County, but was also found in other areas including Alameda County, El Dorado County, Marin County, Mariposa County, and Shasta County in California, Benton County, Josephine County, Lincoln County, and Union County in Oregon, as well as Grays Harbor County in Washington.  

The youngest specimens date to 1977, younger collections are not known, and it is possible that this species is already extinct.  

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edited: 31.10.2017

Bombus franklini (Frison)

Franklin’s Bumblebee (Bombus franklini)

Franklin’s Bumblebee is, or perhaps was, one of the most narrowly distributed bumblebee species of the world, it is known only from a small area between the coast and the Sierra-Cascade Mountains in northern California and southern Oregon, USA.

The species was last seen in 2006 at Mt. Ashland in Oregon and is now most likely extinct.

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Photo: James P. Strange

(public domain)

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edited: 25.04.2022

Agapetus denningi Ross

Denning’s Agapetus Caddisfly (Agapetus denningi)

This species was described in 1951; it is only known from the type location: Rouge River National Forest in Jackson County, Oregon, USA.

Length 5 mm. Color dark brown, slightly lighter on legs and venter.” [1]

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The species seems to have never been recorded since its description and is thought to be likely extinct.

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References:

[1] Herbert H. Ross: Phylogeny and biogeography of the caddisflies of the genera Agapetus and Electragapetus (Trichoptera: Rhyacophilidae). Journal of the Washington Academy of Sciences 41(11): 347-356. 1951

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edited: 13.08.2022

Calochortus indecorus Ownbey & M. Peck

Sexton Mountain Mariposa Lily (Calochortus indecorus)

This species was described in 1953 on the basis of a specimen that had been collected in 1948 at the foot of the western slope of Sexton Mountain in northwestern Josephine County, Oregon, USA. [1]

The Sexton Mountain Mariposa Lily was never again since and is considered extinct now, it is thought to have vanished due to the construction of the Interstate 5, the main Interstate Highway on the west coast of the USA.

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References:

[1] Morton E. Peck: A new Calochortus from Oregon: Leaflets of Western Botany 7(2): 190-192. 1954

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Photo: Oregon Department of Agriculture

(under creative commons license (2.0))
http://creativecommons.org/licenses/by-nc-nd/2.0

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edited: 03.12.2018