Oxalis Sp. In North Carolina
https://fsus.ncbg.unc.edu/show-key.php?highlighttaxonid=3447
Differential Key
http://www.phytologia.org/uploads/2/3/4/2/23422706/913501-526nesomoxalisintheus.pdf
TAXONOMIC NOTES ON ACAULESCENT OXALIS
(OXALIDACEAE) IN THE UNITED STATES
Guy L. Nesom
