Subspecies, varieties, forms and cultivars of plants belonging to the Lophophora williamsii group

• Lophophora fricii var. decipiens (Croizat) P.Hansen: With the exception of the smaller and more pale pink flowers, its appearance corresponds to the appearance of Lophophora Fricii.
• Lophophora williamsii (Lem. ex Salm-Dyck) J.M.Coult.: Globular or somewhat flattened glaucous green or greyish green spineless cactus up to 6 cm tall, 12 cm diameter, with a woolly top; It has a large taproot which may extend over 25 cm below ground level.
• Lophophora williamsii var. caespitosa Y.Itô: This name is used to indicate a number of clones of horticultural origin characterized by a more or less accentuated production of axillary shoots that in age grow and form huge cushions.
• Lophophora williamsii var. caespitosa f. variegata hort.: variegated form.
• Lophophora williamsii var. cristata Houghton: There is an impressive array of cristates which forms glaucous green, dull bluish or greyish green, very succulent contorted and convoluted brain-like mounds. They are some of the more striking and priced crested cacti.
• Lophophora williamsii var. echinata (Croizat) Bravo
• Lophophora williamsii var. fricii (Haberm.) Grym: Beautiful variety with large intensive pink pink flowers.
• Lophophora williamsii var. fricii f. cristata hort.: crested form.
• Lophophora williamsii var. fricii f. variegata hort.
• Lophophora williamsii var. fricii cv. Marbles: has wide and well developed rounded tubercles. Seems to be a pretty variable plant with several clones.
• Lophophora williamsii subs. grymi Halda, J.Kupčák & Sladk.: Solitary or in group with 6-10 prominent straight ribs with low polygonal tubercles with short brownish wool. Flowers large pinkish-white.
• Lophophora williamsii var. jourdaniana (Haberm.) hort.: It has rose-violet or dark pink-red perianth, pistil and filaments with small long persisting spines on young areoles. Old plant forms a dense cluster or mound.
• Lophophora williamsii var. lewinii (Henn. ex Lewin) J.M.Coult.: Long areolar hairs.
• Lophophora williamsii var. pentagona Croizat: All heads 5-ribbed.
• Lophophora williamsii var. pluricostata Croizat: Ribs always numerous.
• Lophophora williamsii var. texana Frič ex Kreuz.: (or texensis ) is the phenotype from the Texas area (USA), this local form has very grey pruinose stems with numerous flat ribs (up to 14 in adult specimens).
• Lophophora williamsii cv. Kikko: This odd cultivar is easily distinguishable for its ± wide and long pointed tubercles along the bumped ribs edges. Seems to be a pretty variable plant with several clones.