Oxalis caerulea
{{Short description|Species of flowering plant}}
{{Speciesbox
| image = Oxalis caerulea (Small) R.Knuth 3385020647.jpg
| genus = Oxalis
| species = caerulea
| authority = (Small) R. Knuth{{PLANTS|id=OXCA5|taxon=Oxalis caerulea|accessdate=September 8, 2013}}
}}
Oxalis caerulea, the blue woodsorrel, is a perennial plant and herb in the family Oxalidaceae. It is native to the southwestern United States.
A similar species is the tenleaf pink-sorrel (Oxalis decaphylla).