Oxalis dillenii Jacquin. Southern Yellow Wood-sorrel. Phen: Feb-Nov. Hab: Roadsides, pastures, lawns, a wide variety of other habitats. Dist: NS west to SK, south to FL, TX, NM; introduced elsewhere.

Origin/Endemic status: Native

Taxonomy Comments: See Nesom, Spaulding, & Horne (2014) for additional information.

Synonymy: = Ar, C, FNA12, K1, K3, K4, Mi, NE, NY, Va; = Oxalis stricta L. – WV, misapplied; = Xanthoxalis dillenii (Jacq.) Holub; < Oxalis corniculata L. – WH3; > Oxalis corniculata L. var. dillenii (Jacq.) Trel.; > Oxalis corniculata L. var. lyonii (Jacq.) Trel.; < Oxalis dillenii Jacq. – Tn; > Oxalis dillenii Jacq. – GrPl, RAB; > Oxalis dillenii Jacq. ssp. dillenii – W, Eiten (1963), Robertson (1975), Ward (2004a); > Oxalis dillenii Jacq. ssp. filipes (Small) G.Eiten – Pa; > Oxalis dillenii Jacq. var. dillenii – Tx; > Oxalis dillenii Jacq. var. radicans Shinners – Tx; > Oxalis filipes – F, Tat; > Oxalis florida Salisb. – F; > Oxalis florida Salisb. var. filipes (Small) H.E.Ahles – RAB; > Oxalis florida Salisb. var. florida – RAB; ? Oxalis fontana Bunge – Il; > Oxalis lyonii Pursh; > Oxalis prostrata Haw.; < Oxalis stricta L. – NcTx; > Oxalis stricta L. – G, Tat, misapplied; > Xanthoxalis brittoniae (Small) Small – S, S13; > Xanthoxalis filipes Small – S, S13

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Wetland Indicator Status:

• Atlantic and Gulf Coastal Plain: UPL (taxonomic lump from wetland indicator species)
• Atlantic and Gulf Coastal Plain: FACU (taxonomic lump from wetland indicator species)
• Eastern Mountains and Piedmont: FACU (taxonomic lump from wetland indicator species)
• Eastern Mountains and Piedmont: FACU (taxonomic lump from wetland indicator species)
• Great Plains: FACU (taxonomic lump from wetland indicator species)
• Great Plains: FACU (taxonomic lump from wetland indicator species)
• Midwest: FACU (taxonomic lump from wetland indicator species)
• Midwest: FACU (taxonomic lump from wetland indicator species)
• Northcentral & Northeast: FACU (taxonomic lump from wetland indicator species)
• Northcentral & Northeast: FACU (taxonomic lump from wetland indicator species)

Heliophily ?: 7