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Taxon:  Polemonium occidentale Greene



Summary
Genus:
Polemonium
Family:
Polemoniaceae
Subfamily:
Polemonioideae
Nomen number:
444473
Place of publication:
Pittonia 2:75. 1890
Comment:
this species is strongly allied with P. caeruleum sensu lato
Verified:
04/08/2004 ARS Systematic Botanists.
Accessions:
0 (0  active, 0  available) in National Plant Germplasm System. 
Other conspecific taxa
Polemonium occidentale Greene var. lacustre (Wherry) Lakela (0 active accession[s])
Polemonium occidentale Greene var. occidentale (0 active accession[s])
Autonyms (not in current use), synonyms and invalid designations
No images
Reference(s)
  1. Cronquist, A. et al. Intermountain flora. 1972-
  2. Douglas, G. W. et al., eds. Illustrated flora of British Columbia. 1999
  3. Gleason, H. A. & A. Cronquist. Manual of vascular plants of northeastern United States and adjacent Canada, ed. 2. 1991
  4. Hickman, J. C., ed. The Jepson manual: higher plants of California. 1993
  5. Hitchcock, C. L. et al. Vascular plants of the Pacific Northwest. 1955-1969
  6. Ownbey, G. B. & T. Morley. Vascular plants of Minnesota: a checklist and atlas. 1991
  7. Scoggan, H. J. The flora of Canada, 4 vol. 1978-1979 Note: = P. caeruleum subsp. occidentale (Greene) Davidson
  8. Welsh, S. L. Anderson's flora of Alaska and adjacent parts of Canada. 1974 Note: = P. caeruleum subsp. amygdalinum (Wherry) Munz
  9. Wetter, M. A. et al. WISFLORA: Wisconsin vascular plant species (on-line resource). http://www.botany.wisc.edu/wisflora/
Common names
English
western Jacob's-ladder –
Distribution
order_codeStatusContinentSubcontinentCountryStateNote
1NativeNorthern AmericaNorth-Central U.S.A.United StatesMinnesotan.e.
1NativeNorthern AmericaNorth-Central U.S.A.United StatesNorth Dakotapossibly
1NativeNorthern AmericaNorth-Central U.S.A.United StatesSouth Dakotapossibly
1NativeNorthern AmericaNorth-Central U.S.A.United StatesWisconsinpossibly
1NativeNorthern AmericaNorthwestern U.S.A.United StatesColorado 
1NativeNorthern AmericaNorthwestern U.S.A.United StatesIdaho 
1NativeNorthern AmericaNorthwestern U.S.A.United StatesMontana 
1NativeNorthern AmericaNorthwestern U.S.A.United StatesOregon 
1NativeNorthern AmericaNorthwestern U.S.A.United StatesWashington 
1NativeNorthern AmericaNorthwestern U.S.A.United StatesWyoming 
1NativeNorthern AmericaSouthwestern U.S.A.United StatesCalifornia 
1NativeNorthern AmericaSouthwestern U.S.A.United StatesNevada 
1NativeNorthern AmericaSouthwestern U.S.A.United StatesUtah 
1NativeNorthern AmericaSubarctic AmericaCanadaYukon Territory 
1NativeNorthern AmericaSubarctic AmericaUnited StatesAlaska 
1NativeNorthern AmericaWestern CanadaCanadaAlberta 
1NativeNorthern AmericaWestern CanadaCanadaBritish Columbia 
Native
Northern America
  • NORTH-CENTRAL U.S.A.: United States [Minnesota (n.e.), North Dakota (possibly), South Dakota (possibly), Wisconsin (possibly)]
  • NORTHWESTERN U.S.A.: United States [Colorado, Idaho, Montana, Oregon, Washington, Wyoming]
  • SOUTHWESTERN U.S.A.: United States [California, Nevada, Utah]
  • SUBARCTIC AMERICA: Canada [Yukon Territory], United States [Alaska]
  • WESTERN CANADA: Canada [Alberta, British Columbia]
Economic Uses


NGBT Plant Germplasm System Distribution Policy

Plant germplasm is distributed to scientists, educators, producers and other bona fide research and education entities from National genebank of Tunisia active collection sites. The NGBT Curator and/or Research Leader will, in accordance with current NPGS policies and procedures, determine the legitimacy of a request when necessary.

Distributions to fulfill requests for repatriation of subsamples of germplasm collections to a country or community of origin, especially following natural or man-made catastrophes, are considered a high priority.

Although distributions for research, education, and repatriation are of the highest priority, the NPGS also encourages various seed-saver organizations and public gardens to conduct germplasm conservation activities that engage many individuals and groups throughout the country. Elements of the NPGS cooperate with seed-saver organizations and public gardens and may store germplasm for and distribute germplasm to such organizations.

Distribution of germplasm from NPGS collections to fulfill requests from individuals seeking free germplasm strictly for home use is generally considered an inappropriate use of limited resources and conflicts with U.S. Government policy of not competing with commercial enterprises. Requestors can be asked, in an appropriate manner, to justify the use of specific NPGS germplasm instead of suitable commercially available germplasm.

Accessions listed in the Germplasm Resources Information Network (GRIN) database as “not available” due to insufficient or low viability seed and/or scheduled for regeneration will generally not be available for distribution.

Other accessions are listed in GRIN as “not available” because they are not a part of the NPGS collection per se, but are conserved in NPGS genebanks to meet specific needs as described later in the section entitled “Categories of Germplasm Distributed and Availability.” In this category are certain accessions of improved germplasm that are only available from the owner/developer. Other accessions require that specific conditions be met by the requestor before distribution is possible.

NPGS sites will not distribute germplasm internationally when they cannot comply with the importation or quarantine requirements of the recipient country unless the requestor can provide a valid waiver of such requirements.