Amsonia salpignantha Woodson, Ann. Missouri Bot. Gard. 15: 417, plate 52, figs. 21, 22. 1928

Stems sparsely to moderately pubescent (glabrate, glabrous). Leaves: petiole sparsely to moderately short-pubescent (sel­dom glabrate to glabrous on one or both surfaces); blade margins occasionally somewhat revolute, at least sparsely ciliate, surfaces sparsely to moderately short-pubescent (seldom glabrate or glabrous on one or both surfaces). Calyces sparsely pubescent (glabrous, moderately pubescent), especially on cup, sepal margins ciliate (or not).

Flowering spring; fruiting summer. Rocky hills, canyons, valley bottoms, generally on limestone; 100–1600 m; N.Mex., Tex.; Mexico (Coahuila).