| + | Yucca glauca, Nutt. (Y. angustifolia, Pursh.). Fig. 4019. Acaulescent or with prostrate trunk: lvs. narrow, 1/4 – 1/2 in. wide, gray-green, narrowly white-margined: infl. 3-6 ft. high, rarely branched: fls. greenish white. S. D. to N. Mex. B.M. 2236. F.E. 14, p. 34. G.F. 2: 247 (adapted in Fig. 4019). Rep. Mo. Bot. Gard. 3:8, 51; 13:23-25, 83. Gn. 76, p. 402. G.W. 10, pp. 83, 214.—A distinctly caulescent erect form with larger branched infl. is var. stricta, Trel. (Y. stricta, Sims). B.M. 2222. Gn. 8, p. 130. Rep. Mo. Bot. Gard. 13:26, 27. |