a. Habit. b. Leaf bases showing stipules and inflated areas at base of lamina. c. Base of fascicle of flowers showing bracts and bracteoles and large bract subtending whole fascicle, the latter usually deciduous by anthesis. d. Flower, posterior petal at upper left. f. Anthers: lateral view, natural shape (left); adaxial view, flattened (middle); abaxial view, flattened (right). Scale bar equivalents:
a, 4 cm; b, c, 4 mm; d, 8 mm; e, 5.7 mm; f, 2.7 mm.—Based on: a, b, d–f, Hatschbach 35085, MICH; c, Hatschbach 33276, MBM. Drawn by Karin Douthit. First published in Contr. Univ. Michigan Herb. 19: 389. 1993; reproduced with permission of the author.