Zinnia grandiflora, Nutt. Hardy, low-growing, Colo. perennial, with woody root, erect, stiff, and very rough st. having a shrubby base, linear lvs., and sulfur-yellow rays which are very broad, almost round in outline: lvs. less than 1 in. long and 3-nerved. Colo., New Mex., Ariz., Mex.