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Accepted Scientific Name: Lophophora williamsii (Lem. ex Salm-Dyck) J.M.Coult.
Contr. U.S. Natl. Herb. 3: 131. 1894

Origin and Habitat: This species grows around the lagoon near Viesca in the state of Coahuila, Northern Mexico.
Synonyms:
Lophophora williamsii (Lem. ex Salm-Dyck) J.M.Coult.
Contr. U.S. Natl. Herb. 3: 131. 1894
Synonymy: 34
- Lophophora williamsii (Lem. ex Salm-Dyck) J.M.Coult.
- Anhalonium visnagra K.Schum.
- Anhalonium williamsii (Salm-Dyck) Rümpler
- Anhalonium williamsii Lem. ex Förster
- Ariocarpus williamsii (Salm-Dyck) Voss
- Echinocactus lewinii (Henn. ex Lewin) K.Schum. in Engl. & Prantl
- Echinocactus williamsii Lem. ex Salm-Dyck
- Echinocactus williamsii var. anhaloninicus K.Schum.
- Echinocactus williamsii var. pellotinicus (K.Schum.) Rouhier
- Mammillaria williamsii (Lem.) J.M.Coult.
- Lophophora williamsii var. echinata (Croizat) Bravo
- Lophophora echinata Croizat
- Lophophora williamsii var. fricii f. cristata hort.
- Lophophora williamsii var. fricii f. variegata hort.
- Lophophora williamsii subs. grymi Halda, J.Kupčák & Sladk.
- Lophophora williamsii var. heptagona Y.Itô
- Lophophora williamsii var. jourdaniana (Haberm.) hort.
- Anhalonium jourdanianum Lewin
- Echinocactus jourdanianus Rebut ex C.A.Maass
- Lophophora jourdaniana Haberm.
- Lophophora williamsii var. lewinii (Henn. ex Lewin) J.M.Coult.
- Anhalonium lewinii Henn. ex Lewin
- Lophophora lewinii (Henn.) Rusby
- Mammillaria lewinii (Henn. ex Lewin) H.Karst.
- Lophophora williamsii var. pentagona Croizat
- Lophophora pentagona (Croizat) V.Gapon
- Lophophora williamsii var. pluricostata Croizat
- Lophophora pluricostata (Croizat) V.Gapon
- Lophophora williamsii var. texana Frič ex Kreuz.
- Lophophora lutea var. texana (Frič ex Kreuz.) Backeb.
- Lophophora williamsii var. typica Croizat
Lophophora williamsii var. caespitosa Y.Itô
1952 (nom. inval)
Accepted name in llifle Database:
Lophophora williamsii var. caespitosa f. variegata hort.
Accepted name in llifle Database:
Lophophora williamsii var. cristata Houghton
J. Cact. Succ. Soc. Amer. 2: 490. 1931
Accepted name in llifle Database:
Lophophora williamsii var. fricii (Haberm.) Grym
Rod Lophophora 56 1997
Synonymy: 8
- Lophophora williamsii var. fricii (Haberm.) Grym
- Anhalonium floro rosea Frič
- Lophophora diffusa subs. fricii (Haberm.) Halda
- Lophophora fricii Haberm.
- Peyotl zacatensis (Haberm.) Sotom., Arred. & Mart.Mend.
- Peyotl zacatensis var. fricii (Haberm.) Sotom., Arred. & Mart.Mend.
- Lophophora fricii var. decipiens (Croizat) P.Hansen
Lophophora williamsii f. variegata hort.
Cultivars (2):
TARAHUMARA: Híkuri walula saeliame, Chiculi hualala saelíami, Híkuri warura seriame
Description: Globular spineless cactus with large tap root.
Stem: Pale grey-green to yellow-green, usually lacking well defined ribs and furrows.
Ribs: 5 to 13 the podaria are rarely elevated, but are broad and flat.
Areoles: With tufts of hairs that usually spread unequally on the prominent podaria.
Flowers: Commonly pale to dark pink ( or rarely pinkish white), reaching over 4 centimetre in diameter.
Remarks: In habitat Lophophora friciiSN|1117]]SN|1752]] is a very mutable species. It´s hardly to find two similar plants at one location. Particularly in terms of the bloom they are different at the same locations.
Variegate forms: Variegate Lophophora williamsiiSN|1752]]SN|1117]] var. fricii are seldom available, but coveted by impassioned for the beautiful spineless body stripped in yellow, cream or pink. The odd variegate appear unpredictably in seedling batches in a small percentage, and are generally separated from normal plants. Variegated plants grow more slowly, and are generally smaller than non-variegates. Coloured areas are also generally weaker, and more susceptible to fungus, sunburn and other defects. A large well grown variegate Lophophora is truly an achievement. These are harder to grow well than they appear.
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.
Cultivation and Propagation: Variegated and albinos Lophophora are regarded as choice and difficult in cultivation, but despite that some of them are relatively easy to grow. Be aware that they cannot tolerate prolonged exposure to direct sun light (especially during the hottest summer days), so grow them in half-shade or under filtered sun. They are sometime seen as grafted plants, but some grow well on their own roots, too.
On the contrary, the albinos can survive only if grafted on a strong green base.
Use mineral well-permeable substratum with little organic matter (peat, humus). Water sparingly from March till October and keep perfectly dry in winter at temperatures from 5 to 15 degrees centigrade. (In general these plants are more tender and cannot endure freezing temperatures ) In the rest period no high atmospheric humidity!!
Propagation: Almost usually by seed. Plants are often grafted onto column-shaped cacti.
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