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Devil's Root

Lophophora williamsii (loh-foh-FOR-ah WIL-yam-see-eye)

Family: Cactaceae Unknown Groundcover (<1 ft)

Peyote is a succulent subshrub and a species of hallucinogenic cactus that is native to South and Southwest, Texas and Northeast Mexico. It is typically found in limestone soils of the desert or dry shrubland. Peyote is low-growing, small, solitary and rarely grow in clusters, grayish-green or bluish-green, and spineless. The plant is slow-growing and takes 10 to 30 years for it to mature and flower. It is a member of the cactus family (Cactaceae). The species was dedicated to Mr. Williams, a zealous amateur from the London area ["...dédié à M. Williams, zélé amateur des environs de Londres."]. This plant prefers bright, indirect light or partial shade. It naturally grows in gravelly well-drained loam soils or may be also grown in a well-drained cactus potting mix. Water this plant sparingly and allow it to dry out completely between waterings. It is drought and poor soil tolerant. Low humidity and temperatures between 64 to 86 degrees Fahrenheit are recommended. The plant needs protection from exposure to cold temperatures to prevent damage. The plant may be propagated by seeds, stem cuttings, or division of pups. Peyote grows nearly flush with the soil surface, and it is up to 5 inches wide and up to 3 inches above the ground and has fleshy, carrot-shaped roots. The stems are soft, spineless, fleshy, flat, and nearly hemispherical or globular-like with the low rounded sections bearing a tuft of yellow-white hairs at the summit. The stems are depressed in the center and have 5 to 13 ribs. The flowers appear in the center of the stem and measure 0.5 to 1 inch in diameter. They have elliptic-shaped outer and inner tepals. The white to pink flowers bloom during the summer from May to September. After flowering, a berry fruit is produced that will ripen up to one year later. The peyote contains psychoactive alkaloids including mescaline, which has hallucinogenic effects. The sale, use or possession of the dried "buttons" or live plants is federally prohibited in many places; however, there are exemptions for use in religious rites of Native Americans. Peyote is illegal in most parts of the Western world. Check with your federal, state, and local authorities before using or cultivating this plant. Insects, Diseases, and Other Plant Problems: Spider mites and mealybugs can occur and are its primary pests. Overwatering can cause root rot. Low humidity and good air circulation is required to prevent fungal diseases.

Source: NC State Extension Gardener Plant Toolbox ↗ NC State Extension Gardener Plant Toolbox, 49 attributes.

How it fits the guild

Guild layer 5 - Groundcover (<1 ft) Optimal soil pH Alkaline (>8.0)
See companions & conflicts ↓

Companions & Conflicts

Curated pairwise relationships between this plant and others in the library — who feeds whom, who competes, who confuses the pests. Green reads as a good pairing, red as one to avoid.

No curated interactions recorded for this species yet.

Also noted by NC State

Related species the NC State Plant Toolbox flags for this plant — look-alikes to tell apart, and plants that play a similar role in a planting. Ones we carry in the library are linked.

Fills a similar niche Mammillaria Mammillaria vetula Parodia

Full plant profile

Growing Conditions
Plant type
Herbaceous Perennial; Poisonous; Succulent
Life cycle
Perennial
USDA zones
10a, 10b, 11a, 11b
Light
Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Soil texture
Clay; Loam (Silt); Shallow Rocky
Soil pH
Alkaline (>8.0)
Soil drainage
Good Drainage | Occasionally Dry
Available space
Less than 12 inches
Mature size
Height: 0 ft. 2 in. - 0 ft. 3 in. | Width: 0 ft. 3 in. - 0 ft. 5 in.
Growth rate
Slow
Maintenance
Low
Canopy layer
5 - Groundcover (<1 ft)
Form & Appearance
Habit / form
Clumping; Rounded
Hairs present
No
Flower color
Gold/Yellow; Pink; White
Flower form
Head
Flower shape
Saucer
Flower size
< 1 inch
Flower detail
The flowers are 0.5 to 1-inch in diameter, white or pink, and bloom in May through September. The blooms appear at the center of the plant and last about 2 to 3 days.
Bloom time
Spring; Summer
Fruit color
Pink
Fruit type
Berry
Fruit detail
The fruit is a berry that turns pink with ripening. The fruits will ripen up to one year after flowering.
Stem color
Blue; Gray/Silver; Green
Stem detail
The stems are soft, spineless, fleshy, flat, and are nearly hemispherical or globular-like with the low rounded sections bearing a tuft of yellow-white hairs at the summit. The stems are depressed in the center and have 5 to 13 ribs.
Wildlife & Ecology
Native status
Unknown
Origin
Southwest and South Texas to Northeast Mexico
Distribution
Mexico Northwest, Mexico Southwest, and Texas
Play value
Easy to Grow
Food & Medicine
Fruit type
Berry

Uses (ethnobotany)

Native Americans used the cut and dried buttons of the plant for medical purposes and in their religious ceremonies. The plant contains narcotics and will cause hallucinations if chewed. To possess any part of this plant in the United States requires a federal permit. It has nearly been eliminated in Texas.

Landscape Use
Garden tags
#poisonous #succulent #pink flowers #illegal #slow growing #partial shade tolerant #cactus #clumping #perennial #poor soil tolerant #low maintenance #drought tolerant #rounded
Problems & Resistance
Insect problems
Mealybugs Found on Flowers and Foliage
Problems
Poisonous to Humans; Problem for Children
Resistant to
Drought; Poor Soil
Propagation
Division; Seed; Stem Cutting
Poison severity
Low
Poison parts
Stems
Poison symptoms
CAUSES ONLY LOW TOXICITY IF EATEN. Fresh or dried pieces of all parts above-ground ("peyote buttons") cause illusions, hallucinations, headache, pupil dilation, blurred vision, muscular relaxation, dizziness, circulatory depression, and severe stomach pain with vomiting and diarrhea.
Toxic principle
Alkaloids mescaline, lophophorine, and others
Contact dermatitis
No
Toxicity summary
Low severity poison; parts: Stems

Planted at Hunnicutt

Nobody’s planted this one yet.