Ferocactus are cacti that can be either spherical or columnar in shape. They feature well-defined ribs that support spiny areoles, with some spines exhibiting a hooked form. In the summer, these plants produce funnel-shaped blossoms.

Ferocactus

Ferocactus acanthodes

Ferocactus alamosanus

Ferocactus chrysancanthus is a slow-growing, evergreen cactus characterized by its barrel-like shape, typically reaching heights of up to 90 cm. This species features a single green stem covered in abundant spines that exhibit a gradient from golden at the base to reddish at the tips. In the summer months, it produces flowers that range in color from orange to a brownish-yellow, emerging near the stems.

Ferocactus chrysancanthus

Ferocactus cylindraceus

Ferocactus cylindraeceus subsp. eastwoodiae

Ferocactus echidne

Ferocactus echidne 'Victoriensis'

Ferocactus electracanthus

Ferocactus emoryi is a bluish-green barrel cactus that starts off with a globular shape and gradually develops into a cylindrical form, potentially growing up to 2 meters in height over the years. Young specimens display a symmetrical pattern of conical tubercles that are adorned with 6 to 10 elongated, curved spines, which can be either red or light brown. As the cactus matures, it produces 15 to 30 pronounced ribs. In the summer, it blooms with funnel-shaped flowers that can reach 7.5 centimeters in diameter, showcasing shades of red, yellow, or pale orange. These flowers are followed by egg-shaped fruit that ripens to a yellow hue.

Ferocactus emoryi

Ferocactus emoryi subsp. emoryi

Ferocactus emoryi subsp. rectispinus is a slow-growing, upright cactus that can reach heights of up to 2 meters. It features long, straight spines that are reddish-pink in color. During the summer, this species produces large flowers that can be yellow, red, or orange.

Ferocactus emoryi subsp. rectispinus

Ferocactus fordii is a solitary cactus featuring a rounded, ribbed stem that can reach up to 25 cm in diameter. Its surface is a grey-green hue, adorned with whitish radial spines and elongated, flattened central spines that may appear grey or red and are often twisted. The plant produces funnel-shaped flowers measuring around 4 cm, displaying a purplish-pink color.

Ferocactus fordii

This solitary cactus reaches a diameter of up to 20 cm, featuring a rounded grey-green stem adorned with approximately 21 warty ribs. It displays delicate white radial spines alongside robust, flattened central spines that are brown in color. During the summer months, it produces funnel-shaped pink flowers.

Ferocactus fordii subsp. borealis

Ferocactus glaucescens features a spherical to cylindrical stem that can reach heights of up to 60 cm, often forming clusters. Its surface is a grey-green hue, adorned with yellow spines that can grow up to 2.5 cm long. This species produces funnel-shaped flowers, measuring between 3 and 4 cm in diameter, that are also yellow.

Ferocactus glaucescens

Ferocactus glaucescens var. inermis

Ferocactus gracilis is a globular cactus that matures into a cylindrical form, reaching heights of up to 70 cm over time. Its stem displays a dark green hue, adorned with delicate white radial spines and flattened central spines that range from pink to reddish-brown. During early summer, this species produces funnel-shaped flowers that are red in color.

Ferocactus gracilis

Ferocactus gracilis subsp. coloratus

Ferocactus hamatacanthus

Ferocactus herrerae

Ferocactus histrix

Ferocactus latispinus is a spherical cactus that can reach a diameter of up to 25 cm. It features 21 distinct ribs and is adorned with slender white radial spines, along with robust, flattened central spines that are either red or brown. During the winter months, it produces funnel-shaped flowers in shades of pink.

Ferocactus latispinus

Ferocactus latispinus subsp. spiralis

Ferocactus macrodiscus

Ferocactus peninsulae

Ferocactus peninsulae var. viscainensis

Ferocactus pilosus is a slow-growing species that can attain heights of up to 3 meters in the wild, though cultivated individuals are generally smaller. Initially, it has a globe-like form that transitions to a barrel shape as it matures. The dark green stem is distinctly ribbed, featuring areoles that showcase thick red spines alongside delicate, thread-like white hairs. During early summer, this cactus produces funnel-shaped flowers that can be red or yellow, arranged in a circular pattern at the apex of the stem.

Ferocactus pilosus

Ferocactus robustus

Ferocactus schwarzii

Ferocactus townsendianus

Ferocactus viridescens is a cactus characterized by its vibrant green, typically solitary, globular or cylindrical stems that can reach heights of up to 30 cm. The plant features shallow ribs along its surface and has central spines that are yellow and curved, measuring as long as 5 cm. It produces flowers measuring around 5 cm, which may be green or have a hint of red.

Ferocactus viridescens

This cactus features a single, rounded stem that can become cylindrical with age. Its prominent ribs are adorned with hooked spines. In summer, it produces flowers that range in color from yellow to red.