Vertical columns, whitish to yellow spines, to 8ft tall. When mature will form a reddish cephalium with cream colored flowers.
Harsh Peruvian deserts; dense white hairs; tree-like to 20ft
Shrubby, branching from base, to 8ft. w/lateral cephalium
Tree-like growth, shrubby, branches at base, stems are columnar to 6ft. tall. Densely covered in spines and fine hairs.
Large and tree like. Light brown spines when young grow more white as they age.
Tall and cactus-like with variegated green stems. Forms branches in a candelabra shape, with tiny bright yellow flowers in spring.
Species is green, however the green/white variegated variety is commonly sold under the same name, or E. “Ammak”. 4-sided stems with curled edges. Tree form, tall and branchy.
Stout, shrublike growth with impressive spines resembling cow’s horns. Bright yellow flowers on mature plants capture the eye. Frost tender.
Small round striped plants. Will grow eventually to 12″ tall. Keep very dry, especially in winter.
Tall and cactus-like shrub with a wide spreading candelabra shape. Forms branches and will have tiny leaflets on the newer growth.
Multi-ribbed globe with prominent tubercules; tap root
Lots of tight vertical branches, leafy; green with white patterning. Can grow to 8 to 12ft tall, but can be kept below 8ft indoor in a pot with very low watering, good sun, and not too much fertilizer.
Lots of tight vertical branches, leafy; green with white patterning with a hint of red will turn bright red in sun. Can grow to 8 to 12ft tall, but can be kept below 8ft indoor in a pot with very low watering, good sun, and not too much fertilizer.
The barrel cacti of the North American deserts, globose to cylindrical forms.
Large barrel to 40″d; blooms young; hooked spines
Solitary or multistemmed to 20″d.; bluish hue, flattened top
Solitary cylindrical to 5ft. tall, 12″ diameter
Baja native; solitary barrel to 12″ dia., eventually 4′ tall
Solitary barrel to 12″ dia., eventually 2′ tall;
F. wislizeni v. herrerae
Solitary cylindrical to 6ft. tall, 18″d. Yellow/red flowers
Large barrel to 18″d.; blooms young; very thick hooked spines
Barrel cactus that grows usually flattened, 12-16″ d., often partially submerged in the soil.
Solitary barrel to 16″ dia., eventually 3′ tall
Large clusters can reach 15ft wide; yellow flowers
Generally solitary, fast grower, to 24″; new spines bright red
F. wislizeni v. tiburonensis
Large barrel to 3ft. tall; red blooms, very thick hooked spines
Solitary barrels grow along the Southern California coast to 12″ tall.
Usually solitary to 30″ d.; striped orange/red blooms, narrow curved spines
F. splendens ssp. campanulata
Rare ocotillo subspecies
spiny shrub upright to 25ft.; red flowers in spring