Calflora
Taxon  Report   2955 
Emex spinosa  (L.) Campd.
Devil's thorn,  Spiny threecornerjack
Emex spinosa
© 2008 Larry Sward
Click on a photo to see it bigger.
CalPhotos
Emex spinosa
© 2008 Larry Sward
Emex spinosa, a dicot, is an annual herb that is not native to California; it was introduced from elsewhere and naturalized in the wild.
Invasive rank: moderate.   Cal-IPC Plant Profile / CalWeedMapper


Emex spinosa is classified by the U.S. Federal Government as a NOXIOUS WEED. [USDA 2000]

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
Emex spinosa
© 2008 Larry Sward
Family: POLYGONACEAE  
Genus: Emex
Communities:
weed, characteristic of disturbed places
Habitat: disturbed
Name Status:
Accepted by TJM2 + PLANTS + JM93
Alternate Names:
(according to)

PLANTS: Rumex spinosus
More information about  Emex spinosa
Photos on CalPhotos / Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

Original Publication citation (ITIS)

USDA PLANTS Profile (EMSP)

Search the International Plants Names Index

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]. 2017. Berkeley, California: The Calflora Database [a non-profit organization].
Available: http://www.calflora.org/   (Accessed: Nov 24, 2017).

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