title: Steroid sapogenins, part XV. The constituents of Agave utahensis var. nevadensis, A. lophantha and A. parasana.
mesh_terms: D004534:Egypt; D010946:Plants, Medicinal / Q000032:analysis*; D012502:Sapogenins / Q000302:isolation & purification*; D013045:Species Specificity
chemical_list: D012502:Sapogenins