Scientific Name
Tephrocactus articulatus var. inermis (Speg.) Backeb.
Accepted Scientific Name
Tephrocactus articulatus (Otto) Backeb.
Common Name(s)
Pine Cone Cactus, Spruce Cone Cholla
Synonym(s)
Opuntia diademata var. inermis, Opuntia glomerata var. inermis
Scientific Classification
Family: Cactaceae
Subfamily: Opuntioideae
Tribe: Tephrocacteae
Genus: Tephrocactus
Description
Tephrocactus articulatus var. inermis is a nearly spineless form of Tephrocactus articulatus with or without very few glochids on the new growth. The glochids usually fall off as they age.
The flowers are bell-shaped, white with a yellow center, and can reach up to 2 inches (5 cm) long and 1.6 inches (4 cm) in diameter.
Hardiness
USDA hardiness zones 8b to 10b: from 15 °F (−9.4 °C) to 40 °F (+4.4 °C).
How to Grow and Care
The large variety of species within the Opuntia genus means different types of Prickly Pears may need slightly different care. All are desert cacti that need lots of sun, lots of light, and very little water. If you live in a hot, arid area, these plants can generally be planted outside, left alone, and enjoyed.
These cacti will grow just fine in a garden but can also be grown in pots. To repot, ensure the soil is dry, remove the pot, and remove the old soil. After treating any cuts with fungicide, place the cactus in a new pot and backfill it with potting soil. As with a new cutting, ensure not to water a newly repotting Prickly Pear briefly to avoid rotting its roots.
Opuntia can propagate either by cuttings or by seed. To propagate by cuttings, sever pads from a plant and let them dry to heal the wounds. Then, place the plants in dry soil and refrain from watering them until they begin to grow to avoid rotting.
Learn more at How to Grow and Care for Opuntia.
Origin
Tephrocactus articulatus var. inermis is native to western Argentina. It is not recognized as a separate variety and is treated as a synonym of Tephrocactus articulatus.
Links
- Back to genus Tephrocactus
- Succupedia: Browse succulents by Scientific Name, Common Name, Genus, Family, USDA Hardiness Zone, Origin, or cacti by Genus
Photo Gallery
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