Ferocactus

 

There are about 30 species of barrel cactus included in the genus Ferocactus. They are found in southwestern USA and northwestern Mexico. The young specimen are columnar, as they grow older, the ribs get formed and they start taking the typical barrel shape.Most of the species are solitary, but others like Ferocactus robustus and F. glaucescens are clumping.

The flowers are pink, yellow, red or purple depending on the species. The petals often have a midstripe of a darker color.

Desert dwellers, they will take some frost and intense heat. They require full sun. They need little water but need an excellent drainage.

The propagation is done mostly from seeds.

Species and varieties
Ferocactus alamosanus
Ferocactus chrysacanthus
Ferocactus chrysacanthus ssp. grandiflorus
Ferocactus cylindraceus (Compass Barrel Cactus)
Ferocactus cylindraceus ssp. lecontei (California Barrel Cactus)
Ferocactus cylindraceus ssp. tortulispinus
Ferocactus diguetii
Ferocactus diguetii var. carmenensis
Ferocactus eastwoodiae (Cliff Barrel)
Ferocactus echidne
Ferocactus echidne var. victoriensis
Ferocactus emoryi ssp. emoryi (Coville's Barrel Cactus, Emory Barrel, Bisnaga)
Ferocactus emoryi ssp. rectispinus
Ferocactus flavovirens
Ferocactus fordii
Ferocactus glaucescens
Ferocactus gracilis
Ferocactus gracilis ssp. coloratus
Ferocactus gracilis ssp. gatesii
Ferocactus haematacanthus
Ferocactus hamatacanthus ssp. hamatacanthus (Turks Head)
Ferocactus hamatacanthus ssp. sinuatus
Ferocactus herrerae
Ferocactus histrix (Electrode Cactus)
Ferocactus johnstonianus
Ferocactus latispinus ssp. latispinus (Devil's Tongue Barrel, Crow's Claw Cactus)
Ferocactus latispinus ssp. spiralis
Ferocactus lindsayi
Ferocactus macrodiscus ssp. macrodiscus (Biznaga de Dulce)
Ferocactus macrodiscus ssp. septentrionalis
Ferocactus peninsulae
Ferocactus pilosus var. pilosus (Mexican Fire Barrel Cactus)
Ferocactus pilosus var. pringlei (Mexican Fire Barrel Cactus)
Ferocactus pottsi
Ferocactus robustus
Ferocactus santa-maria
Ferocactus schwarzii
Ferocactus tiburonensis (Fishhook Barrel Cactus)
Ferocactus townsendianus
Ferocactus viridescens (San Diego Barrel Cactus)
Ferocactus viridescens var. littoralis
Ferocactus wislizeni (Fishhook Barrel Cactus)
Ferocactus acanthodes synonym of Ferocactus cylindraceus (Compass Barrel Cactus)
Ferocactus acanthodes var. eastwoodiae synonym of Ferocactus eastwoodiae (Cliff Barrel)
Ferocactus acanthodes var. rostii synonym of Ferocactus cylindraceus (Compass Barrel Cactus)
Ferocactus acanthodes var. tortulispinus synonym of Ferocactus cylindraceus ssp. tortulispinus
Ferocactus alamosanus ssp. reppenhagenii synonym of Ferocactus alamosanus
Ferocactus bicolor synonym of Thelocactus bicolor (Glory of Texas)
Ferocactus bicolor var. bolaensis synonym of Thelocactus bicolor (Glory of Texas)
Ferocactus bicolor var. flavidispinus synonym of Thelocactus bicolor ssp. flavidispinus
Ferocactus bicolor var. schwarzii synonym of Thelocactus bicolor ssp. schwarzii
Ferocactus coloratus synonym of Ferocactus gracilis ssp. coloratus
Ferocactus coptonogonus synonym of Stenocactus coptonogonus
Ferocactus covillei synonym of Ferocactus emoryi ssp. emoryi (Coville's Barrel Cactus, Emory Barrel, Bisnaga)
Ferocactus crassihamatus synonym of Sclerocactus uncinatus ssp. crassihamatus
Ferocactus crispatus synonym of Stenocactus crispatus
Ferocactus cylindraceus var. eastwoodiae synonym of Ferocactus eastwoodiae (Cliff Barrel)
Ferocactus cylindraceus var. greenwoodiae synonym of Ferocactus latispinus ssp. latispinus (Devil's Tongue Barrel, Crow's Claw Cactus)
Ferocactus cylindraceus var. lecontei synonym of Ferocactus cylindraceus ssp. lecontei (California Barrel Cactus)
Ferocactus cylindraceus var. tortulispinus synonym of Ferocactus cylindraceus ssp. tortulispinus
Ferocactus fordii var. grandiflorus synonym of Ferocactus chrysacanthus ssp. grandiflorus
Ferocactus gatesii synonym of Ferocactus gracilis ssp. gatesii
Ferocactus glaucus synonym of Sclerocactus glaucus (Uinta Basin Hookless Cactus)
Ferocactus guirecobensis synonym of Ferocactus pottsi
Ferocactus hamatacanthus var. crassispinus synonym of Ferocactus hamatacanthus ssp. hamatacanthus (Turks Head)
Ferocactus hastifer synonym of Thelocactus hastifer
Ferocactus heterochromus synonym of Thelocactus heterochromus
Ferocactus horridus synonym of Ferocactus peninsulae
Ferocactus leucacanthus synonym of Thelocactus leucacanthus
Ferocactus macrodiscus var. septentrionalis synonym of Ferocactus macrodiscus ssp. septentrionalis
Ferocactus mathssonii synonym of Sclerocactus uncinatus (Chihuahuan Fishhook Cactus)
Ferocactus melocactiformis synonym of Ferocactus histrix (Electrode Cactus)
Ferocactus mesae-verdae synonym of Sclerocactus mesae-verdae
Ferocactus nobilis synonym of Ferocactus latispinus ssp. latispinus (Devil's Tongue Barrel, Crow's Claw Cactus)
Ferocactus orcuttii synonym of Ferocactus viridescens (San Diego Barrel Cactus)
Ferocactus parviflorus synonym of Sclerocactus parviflorus (Smallflower Fishhook Cactus)
Ferocactus peninsulae var. gracilis synonym of Ferocactus gracilis
Ferocactus peninsulae var. santa-maria synonym of Ferocactus santa-maria
Ferocactus peninsulae var. townsendianus synonym of Ferocactus townsendianus
Ferocactus peninsulae var. viscainensis synonym of Ferocactus peninsulae
Ferocactus pfeifferi synonym of Ferocactus glaucescens
Ferocactus phyllacanthus synonym of Stenocactus phyllacanthus
Ferocactus piliferus synonym of Ferocactus pilosus var. pilosus (Mexican Fire Barrel Cactus)
Ferocactus piliferus var. stainesii synonym of Ferocactus pilosus var. pilosus (Mexican Fire Barrel Cactus)
Ferocactus polyancistrus synonym of Sclerocactus polyancistrus (Redspined Fishhook Cactus)
Ferocactus pottsii synonym of Ferocactus pottsi
Ferocactus pottsii var. alamosanus synonym of Ferocactus alamosanus
Ferocactus pringlei synonym of Ferocactus pilosus var. pringlei (Mexican Fire Barrel Cactus)
Ferocactus pubispinus synonym of Sclerocactus pubispinus (Great Basin Fishhook Cactus)
Ferocactus rafaelensis synonym of Ferocactus echidne
Ferocactus rectispinus synonym of Ferocactus emoryi ssp. rectispinus
Ferocactus recurvus synonym of Ferocactus latispinus ssp. spiralis
Ferocactus recurvus synonym of Ferocactus latispinus ssp. spiralis
Ferocactus recurvus synonym of Ferocactus latispinus ssp. latispinus (Devil's Tongue Barrel, Crow's Claw Cactus)
Ferocactus recurvus var. greenwoodii synonym of Ferocactus latispinus ssp. latispinus (Devil's Tongue Barrel, Crow's Claw Cactus)
Ferocactus reppenhagenii synonym of Ferocactus alamosanus
Ferocactus rhodanthus synonym of Ferocactus echidne
Ferocactus rostii synonym of Ferocactus cylindraceus (Compass Barrel Cactus)
Ferocactus scheeri synonym of Sclerocactus scheeri
Ferocactus setispinus synonym of Thelocactus setispinus (Miniature Barrel Cactus)
Ferocactus spinosior synonym of Sclerocactus spinosior (Desert Valley Fishhook Cactus)
Ferocactus stainesii synonym of Ferocactus pilosus var. pilosus (Mexican Fire Barrel Cactus)
Ferocactus stainesii var. haematacanthus synonym of Ferocactus haematacanthus
Ferocactus stainesii var. pilosus synonym of Ferocactus pilosus var. pilosus (Mexican Fire Barrel Cactus)
Ferocactus stainesii var. pringlei synonym of Ferocactus pilosus var. pringlei (Mexican Fire Barrel Cactus)
Ferocactus tobuschii synonym of Sclerocactus brevihamatus ssp. tobuschii (Tobusch Fishook Cactus)
Ferocactus tortulispinus synonym of Ferocactus cylindraceus ssp. tortulispinus
Ferocactus townsendianus var. santa-maria synonym of Ferocactus santa-maria
Ferocactus uncinatus synonym of Sclerocactus uncinatus (Chihuahuan Fishhook Cactus)
Ferocactus uncinatus var. wrightii synonym of Sclerocactus uncinatus ssp. wrightii
Ferocactus vaupelianus synonym of Stenocactus vaupelianus
Ferocactus victoriensis synonym of Ferocactus echidne var. victoriensis
Ferocactus viridescens var. orcuttii synonym of Ferocactus viridescens (San Diego Barrel Cactus)
Ferocactus viscainensis synonym of Ferocactus peninsulae
Ferocactus whipplei synonym of Sclerocactus whipplei (Whipple's Fishhook Cactus)
Ferocactus wislizeni var. herrerae synonym of Ferocactus herrerae
Ferocactus wislizenii var. tiburonensis synonym of Ferocactus tiburonensis (Fishhook Barrel Cactus)
Ferocactus wrightiae synonym of Sclerocactus wrightiae (Wright's Fishhook Cactus)

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