No sé qué es; sigo aprendiendo con la gente que aquí sabe mucho. Lo que me parece es que le haría falta un cambio de maceta.
Ferocactus stainesii 'Pilosus' Family: Cactaceae (Cactus Family) Scientific Name:Ferocactus pilosus(Galeotti ex. Salm-Dyck) Werdermann 1933 Basyonim: Echinocactus stainesii HookerIn: Audot, Rev. Hort. 6:248.1845. Synonyms: Ferocactus stainesii (Hook.) Britt. & RoseIn: Cactaceae 3: 124. 1922. Echinocactus pilosus var. steinesii In: Cact. Hort. Dick. 1849. 149. 1850 Ferocactus piliferus (Lem. ex C.Ehrenb.) G. Unger (1986) Echinocactus piliferus Lem. ex C. Ehrenb. (184 Ferocactus stainesii var. pilosus (Galeotti ex Salm-Dyck) Backeb. (1961) Ferocactus piliferus var. stainesii (Salm-Dyck) G. Unger (1986) Echinocactus pilosus Galeotti ex Salm-DyckIn: Cact. Hort.. Dick. 1849. 148. 1850 Ferocactus piliferus f. flavispinus (hort. ex Schelle) G. Unger (1986) Ferocactus pilosus (Galeotti ex Salm-Dyck) Werderm. (1933) Echinocactus pilosus f. flavispinus hort. ex Schelle (1926) Common Names: Mexican Fire Barrel Cactus, Fire Barrel. Origin: It is widespread in north central Mexico (Nuevo Leon, San Luis Potosi, Coahuila, Zacatecas) and therefore is somewhat variable Habitat:It is most often seen on rocky limestone hillsides. Conservation status: Listed in CITES appendix 2. NOTE: Two subspecies are recognized: Subsp. 'pilosus' with additional wispy and hairy white spines also known as Ferocactus pilosus. It appears also to have brighter red, bigger and thicker central spines compared to more common variety. Subsp. 'pringlei' with only red acicular spines and none (or very few) hairy white spines. However this two 'subspecies' look very similar and are linked one to each others by populations of plants with intermediate characteristics. Nowadays both are thought to belong to a unique polymorphic species with some individual covered in fine white hairs, while others do not.
