close up image of Ludwigia polycarpa FALSE LOOSESTRIFE at the James Woodworth Prairie Preserve - showing a single bloom. Spike-like 'leaves' are sepals - this species sometimes has some small petals, but more typcially it has no colored petals.
close up image of Ludwigia polycarpa FALSE LOOSESTRIFE at the James Woodworth Prairie Preserve - showing a single flower in bloom and a flower bud about to bloom