G4G5
G4G5 Range Rank - A numeric range rank is used to indicate uncertainty about the exact status of a taxon.
G4 Apparently Secure - Uncommon but not rare (although it may be rare in parts of its range, particularly on the periphery), and usually widespread. Apparently not vulnerable in most of its range, but possibly cause for long-term concern. Typically more than 100 occurrences and more than 10,000 individuals.
G5 Secure - Common, widespread, and abundant (although it may be rare in parts of its range, particularly on the periphery). Not vulnerable in most of its range. Typically with considerably more than 100 occurrences and more than 10,000 individuals.
Oxalis pilosa
This species is extensively branched above ground with small leaves and flowers. Variety pilosa differs by its uneven calyx pubescence and acute calyx lobes.