Spiral sorrel

Oxalis spiralis

''Oxalis spiralis'', the spiral sorrel, is a species of the genus ''Oxalis'', the largest genus in the wood sorrel family Oxalidaceae. Its subspecies ''O. s.'' ssp. ''vulcanicola'' Lourteig is known as volcanic sorrel or velvet oxalis.
Spiral Sorrel (Oxalis spiralis) Paraiso Quetzal, Costa Rica. Costa Rica,Geotagged,Oxalis spiralis,Spring

Distribution

Apparently not native to the US, though perhaps cultivated from native species. USDA Plants database shows both ''O. spiralis'' and ssp. ''vulcanicola'' as nonnative, but unlisted as introduced either.

References:

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Taxonomy
KingdomPlantae
DivisionAngiosperms
ClassEudicots
OrderOxalidales
FamilyOxalidaceae
GenusOxalis
SpeciesO. spiralis
Photographed in
Costa Rica