Species Description – Result


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Mammillaria sempervivi

  • First description by De Candolle, Mem. Mus. Hist. Nat. Paris 17: 114 (1828)

  • Body: Plants solitary at first, later forming clumps and not rising much above ground level. Stems flattened globose to depressed globose, dull gray-green, 7 – 10 cm (2.8 – 3.9 in) in diameter.
  • Roots: Taproots large.
  • Sap: With latex.
  • Tubercule arrangement: 13 – 21
  • Tubercule: Pyramidal, firm.
  • Axil: Woolly.
  • Radial spine: Usually on young stems only, 2 – 6, white, bristle-like, to 3 mm long.
  • Central spine: 2 – 3, short, stout, reddish brown to black, becoming gray with age, to 4 mm long.
  • Flower: Funnelform, barely rising above the tubercules, dingy white to pale yellow, to 10 mm (0.4 in) long and in diameter.
  • Fruit: Club-shaped, red, to 10 mm (0.4 in) long.
  • Seed: Brown.
  • Flowering period in Cultivation (Europe):
  • Minimum temperature:
  • Habitat Substrate:
  • Geographic Distribution: Hidalgo, San Luis Potosi, Nuevo Leon, Guanajuato and Queretaro, Mexico. Altitude 1.300 – 2.250 m.
  • Comments:
  • Bibliography:
    John Pilbeam (1999) – Mammillaria The Cactus File Handbook – page 268.

    Edward F. Anderson (2001) – The Cactus Family – page 442.
  • Synonymes:
    M. caput-medusae

Pictures

Picture in the galery related to the keyword :

sempervivi


Mammillaria Sempervivi/Mammillaria sempervivi – ML 90 – Photo Michel Lacoste.jpg


Mammillaria Sempervivi/Mammillaria sempervivi – Photo – Marion LENNOZ.jpg


Mammillaria Sempervivi/Mammillaria sempervivi – Photo Willy Bovis.jpg


Mammillaria Sempervivi/Mammillaria sempervivi – SB91 – MG891-97 – Photo Aymeric de Barmon.jpg


Maps Distribution/Mammillaria sempervivi – distribution map.gif