A lovely vigorous species, with rich golden buttery-yellow blossoms with a tinge of orange. Blooms mid-spring through midsummer. Star-shaped flowers stand 6″ among deep grassy-green leaves. Native to Argentina and Brazil, it is found in pastures and meadows of gravel and reddish clay soils; and along riverbanks, at times growing in standing water. Tuck some in the lawn, among low-growing groundcovers in sunny areas, or at the edge of a pond or bog.