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Oenothera longissima
© 2011 Ron Wolf
Oenothera longissima
© 2011 Ron Wolf
more photos on CalPhotos
Oenothera longissima  Rydb.
long evening primrose, longstem evening primrose
Oenothera longissima, a dicot, is a perennial herb that is native to California and is also found outside of California, but is confined to western North America.

It is included in the CNPS Inventory of Rare and Endangered Plants on list 2.2 (rare, threatened, or endangered in CA; common elsewhere).   7th Edition  /  8th Edition

Communities: Creosote Bush Scrub, Pinyon-Juniper Woodland, wetland-riparian
Wetlands:Usually occurs in wetlands, but occasionally found in non wetlands [U.S. Fish & Wildlife Service.]
Elevation: between 3280 and 5577 feet
Family: ONAGRACEAE  
Related:See a list of other species in the genus Oenothera found in California.
Name Status:
Accepted by TJM2 + PLANTS + JM93
 Other Names:
(according to)
PLANTS: Oenothera longissima ssp. typica
PLANTS: Oenothera longissima var. clutei
TJM2 + PLANTS: Oenothera longissima ssp. clutei




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Distribution by County: See a detailed   Distribution Grid  of this plant in California.
A shaded county indicates that there are ocurrence records of this plant within the county.

Hover the mouse over the map to see county names. Click to view records from that county.
 

  There are specimen records from this county in an herbarium.
  There are documented records, vouchered or confirmed by an expert.
  There are reported records.
  There are reported records available indirectly (eg. in botanical literature).
Records by County, with approximate record counts in the form: TOTAL / CCH.   Click county name to view records.
    CCH: records provided by the participants of the Consortium of California Herbaria.
 Information about  Oenothera longissima  from other sources:
Photos on Picasa / Flickr / Google Images

website references on Google

USDA PLANTS Profile (OELO)

Nursery availability and horticultural info (what grows with this plant?) on CNPLX

CNPS Inventory of rare and endangered plants

2012 Jepson Manual Treament from the Jepson Herbarium,
University of California, Berkeley

Original Publication citation. on the International Plants Names Index

Search efloras.org (Flora of North America)

Search the Lady Bird Johnson Wildflower Center Native Plant Database

    Citation
    Calflora: Information on California plants for education, research and conservation, based on data contributed by dozens of public and private institutions and individuals, including the Consortium of Calif. Herbaria. [web application]. 2013. Berkeley, California: The Calflora Database [a non-profit organization]. Available: http://www.calflora.org/   (Accessed: May 25, 2013).

    Note that the information on this page comes from diverse sources, and that none of the links are sponsored.

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