Yucca flaccida, Haw. Differs from the preceding, for which it is commonly grown, in its more flaccid recurving lvs. with slenderer straighter threads, and carpels with angular backs. N. C. to Ala. Gn. 58, p. 447; 78, p. 433. Rep. Mo. Bot. Gard. 13:12-17, 83.—A distinctly glaucous form, much cult. as Y. filamentosa, is var. glaucescens, Trel. (Y. glaucescens, Haw.). B.M. 6316 (as Y. orchioides var. major). Ref. Bot. 324. Rep. Mo. Bot. Gard. 3:10; 13:12-15, 17, 83. A transiently variegated form of this is f. lineata.