P. angusta Nees ex Trin.,

2 n =14:

1, U.S.A., Louisiana, R.D. Thomas 87875 (VPI), JF951112, –; 2, Brazil, USDA 310292, JF951054, JF951093; 3, Brazil, Rio Grande do Sul, W. Barreto 14 (US), JF951055, –.