Taxon  Report   5901 
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 2B.2 (rare, threatened, or endangered in CA; common elsewhere).   7th Edition  /  8th Edition
 

 Interactive Distribution Map 


 Observation Hotline 
 (observation details + photos)



point, line, or polygon

one or more occurrences within a 7.5-minute quadrangle

 Plant Characteristics
 and Associations



Bloom Period
Oenothera longissima
© 2011 Ron Wolf
Oenothera longissima
© 2011 Ron Wolf
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.]
Family: ONAGRACEAE  
Genus: Oenothera
Distribution by County 

Add an Observation of  Oenothera longissima

 
Name Status:
Accepted by TJM2 + CNPS + PLANTS + JM93
Alternate Names:
(according to)

PLANTS: Oenothera longissima ssp. typica
PLANTS: Oenothera longissima var. clutei
TJM2 + PLANTS: Oenothera longissima ssp. clutei
 Information about  Oenothera longissima  from other sources:
USDA PLANTS Profile (OELO)

Nursery availability and horticultural info on CNPLX

Photos on CalPhotos / Google Images

website references on Google
 

Jepson eFlora

Records from the Consortium of California Herbaria

Original Publication citation. on the
International Plants Names Index

Search efloras.org (Flora of North America)

Search the Lady Bird Johnson Wildflower Center

Suggested Citation
Calflora: Information on California plants for education, research and conservation,
with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria.
[web application]. 2015. Berkeley, California: The Calflora Database [a non-profit organization].
Available: http://www.calflora.org/   (Accessed: Jul 01, 2015).

The information on this page comes from diverse sources. None of the links are sponsored.

News About Calflora Home
Calflora  -  1700 Shattuck Avenue   #198,   Berkeley, CA   94709  -  510 883-3148  -  CONTACT