Calflora
Taxon  Report   11685    
Euphrosyne acerosa  (Nutt.) Panero
Copperwort
Euphrosyne acerosa
© 2010 James M. Andre
Photos from
CalPhotos / Calflora
Euphrosyne acerosa
© 2014 Richard Spellenberg
Euphrosyne acerosa
© 2010 James M. Andre
Euphrosyne acerosa, a dicot, is a perennial herb that is native to California, is also found outside of California, but is confined to western North America.
also called Iva acerosa
CNPS Rare Plant Rank: 4.2 (limited distribution).   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
Euphrosyne acerosa
© 2014 Richard Spellenberg
Communities: Alkali Sink

Wetlands: Occurs usually in non wetlands, occasionally in wetlands

Name Status:
Accepted by JEF + CNPS

PLANTS accepted name:
Oxytenia acerosa

Alternate Names:
ICPN: Oxytenia acerosa
ICPN + CNPS: Iva acerosa
More information about  Euphrosyne acerosa
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Landscaping information from Calscape
Photos on Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

Search efloras.org (Flora of North America)

website references from Google


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]. 2018. Berkeley, California: The Calflora Database [a non-profit organization].
Available: http://www.calflora.org/   (Accessed: Oct 18, 2018).

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