Mason Valley Cholla
Cylindropuntia fosbergii · Cactaceae
- Form
- Cactus
- Height
- 3-8 ft
- Sun
- Full Sun
- Water
- Very Low
- Blooms
- Apr, May, Jun
- Pet toxicity
- Mild
- Habitat
- Desert
🌿 California native
Quick facts
- Habitat: Desert slopes, flats, and alluvial fans
- Form / size: Spiny branching cactus, often 3-8 ft
- Sun: Full sun · Water: Very low
- Blooms: Spring to early summer · Pollinator value: Moderate
Description
A branching cholla with cylindrical stem segments covered in dense barbed spines. Depending on age and light, it can read as silvery, gold, or pale green from a distance, with flowers appearing near the segment tips in season.
Wildlife & pollinators
Flowers support native bees. Spiny branching structure offers cover for small desert birds and other wildlife.
Habitat & range
Mojave and desert-transition habitats on dry flats, rocky slopes, and alluvial fans in Southern California and the interior Southwest.
In the garden
Works in true desert cactus gardens if given room and kept away from paths. Detached joints root easily, which is good for survival and bad for bare ankles.
Propagation
From stem segments or seed. Handle with tools, not bare hands.
Where to see it near you
- iNaturalist — observed in Southern California
- Desert slopes, flats, and cactus scrub.
Problems
Spines are the main issue. Detached joints can spread around disturbed sites and stick readily to clothing, pets, or tires.
