Scientific Name
Lophophora diffusa (Croizat) Bravo
Synonym(s)
Lophophora echinata var. diffusa, Lophophora williamsii subsp. diffusa, Lophophora williamsii var. diffusa, Peyotl diffusus
Common Name(s)
False Peyote
Scientific Classification
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Cacteae
Genus: Lophophora
Etymology
The specific epithet "diffusa" (pronounced "dy-FEW-sa") means "diffuse; spread out" and refers to the flat tubercles of this species, which are outspread without the stems having prominent ribs.

Description
Lophophora diffusa is a small cactus with a large taproot and soft, yellowish-green to grey-green, somewhat globular stems that usually lack well-defined ribs and have tufts of hair spread unequally on the prominent podaria. It can grow as a solitary stem or form clumps of several stems. Each stem can reach a height of 2.8 inches (7 cm) and a diameter of 5 inches (12.5 cm).
The flowers are usually white or faintly pink, sometimes yellowish-white, and appear in summer. They can measure up to 1 inch (2.5 cm) in length and are nearly equal in diameter.
Origin
Lophophora diffusa is endemic to Mexico. It occurs only in a small area near Vizarron in Querétaro, in semi-desert areas on slopes, in riverbeds, and under the shade of various shrubs and nurse plants.
How to Grow and Care for Lophophora diffusa
Hardiness: USDA hardiness zones 9b to 11b: from 25°F (-3.9°C) to 50°F (10°C).
Lophophora is more tolerant of soil types than its relatives and typically grows in areas with decomposed limestone. In cultivation, Lophophora does best in fast-draining, mineral-based soil with about 2/3 sand.
Abundant water is beneficial in the summer, when temperatures exceed 90°F (32°C), and plants are exposed to full sunlight for maximum growth. The soil must be allowed to dry out completely between waterings.
They should also be fertilized twice a year. Over-fertilizing will typically cause Lophophora to develop cracks and split.
Some Lophophora may develop a corky material on their bodies when exposed to pesticides or insecticidal soap. This corky condition will usually heal similarly to human skin if the plants are exposed to full sunlight.
Lophophora cacti are free-flowering in cultivation, and although they can withstand low temperatures during winter, they do not require a cold shock to initiate flowering.
Learn more at How to Grow and Care for Lophophora.
Links
- Back to genus Lophophora
- Succupedia: Browse succulents by Scientific Name, Common Name, Genus, Family, USDA Hardiness Zone, Origin, or cacti by Genus
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