Opuntia articulata

Accession Count: 8
Common Name: pine cone cactus, spruce cone cactus
Family Name: Cactaceae
Botanical Name: Opuntia articulata
Synonyms:
Botanical Synonyms: Tephrocactus articulatus, Cereus articulatus
Sub Species:
Variety:
Forma:
Cultivar:
Characteristics: The pine cone cactus forms upright glaucous growths with globular, pine-cone shaped segments. Cacti usually reach 12 inches tall, with segments nearing 4 inches. This species possesses round, woolly areoles with small brown glochids, and forms showy bell shaped flowers in spring – white with yellow centers.
Occasional spines are formed, taking on a “papery” appearance which has earned it the common name “papery spine cactus”. However, spines are actually quite sharp.
Compound: Opu art
Geographic Origin: South America
Ecozone Origin:
Biome Origin:
Natural History: This plant originated in western Argentina, (Cordoba, Catamarca, Mendoza, La Rioja, San Luis, Salta, and Santiago Del Estero provinces) in a highly variable landscape. Although benign in southwestern North America, the species is invasive in Namibia, South Africa.
The pine cone cactus has great variation, with several forms available on the market. These forms are even more popular than the straight species, and are more commonly cultivated.

Cultivation Notes:
Water the pine cone cactus sparingly, allowing the soil to completely dry in between waterings. The best method of irrigation is to soak the succulent completely and then allow to dry. Plant in a terra cotta pot to absorb excess moisture.
It tolerates poor soil, but prefers sandy, well-draining soil. Full sun to partial shade is required for this species, and as such it fares better outdoors. However, if providing direct light, indoor planting is possible, but growth may be reduced under insufficient sunlight.
It can be propagated through seed, but as the species grows slowly, stem cuttings or layering are recommended instead. The most simple method of propagation is by the pinecone-like segments, which can be easily detached and replanted. However, if propagating from seed, plant in well-draining soil – do not plant outside if the environment is cool. Even when mature, this plant is cold tender and can only survive down to 15° F - USDA hardiness zones 8b to 10b - for brief periods of time.
Lastly, wear gloves when handling to prevent damage by the glochids, and transplant carefully, as the pinecone-like segments are very fragment and prone to breaking off.
Ethnobotany:

Height: 0 - 5 feet
Width: 0 - 5 feet
Growth Rate: Slow Growing
Grow Season: Spring
Flower Season: Spring
Color: White
Function: Accent
Spread: Non-spreading
Allergen: Non-allergenic
Invasive: Benign
Toxicity: Benign
Hardy: Tender
Water Use: Low water Use
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Opuntia articulata