Known interchangeably as Gymnocactus aguirreanum or Acharagma aguirreanum (commonly misspelled “aguirreana”), it is a small cactus with elongated, amber-to-dark-brown needle-like spines and yellow to reddish-yellow blooms at the stem tips.
Gymnocactus beguinii is a small usually solitary, globose cactus with magenta funnel-shaped flowers. The anthers are dark chrome yellow. The style is creamy white.
Grows along with Astrophytum capricorne and Thelocactus rinconensis on the slopes of La Rinconada, a beautiful place between Monterrey and Saltillo, on the border of the states of Nuevo Leon and Coahuila.
Solitary, spherical, narrowing at the collar. Strong tuberous roots. Two erect central spines, whitish with dark brown tips. Radial spines usually white. Flowers pale to dark magenta with darker midstripes.
Diminutive globose cactus with depressed woolly apex and bundled swollen root. Interwoven radial spines - white with brown or black tips - create a lace-like armor. The stunning deep purple blooms with white centers crown this miniature treasure.
