Mammillaria magnimamma

Mammillaria magnimamma, common name Mexican pincushion, is a species of flowering plant in the cactus family Cactaceae.

Mammillaria magnimamma
Mammillaria magnimamma at the Orto Botanico dell'Università di Genova
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Cactaceae
Subfamily: Cactoideae
Genus: Mammillaria
Species:
M. magnimamma
Binomial name
Mammillaria magnimamma
Haw.
Synonyms
  • Mammillaria macracantha
  • Mammillaria zuccariniana
  • Mammillaria centricirrha
  • Mammillaria bucareliensis
  • Mammillaria vagaspina
  • Mammillaria priessnitzii
  • Mammillaria saxicola
  • Mammillaria vallensis
  • Mammillaria rioverdensis

Description

Mammillaria magnimamma is a perennial globose plant reaching a height of 15–30 cm and a diameter of about 13 cm. At first it grows solitary, but later forms large clumps rising above ground level. Tubercules are four-sided, with latex and the axils have dense white wool. The radial spines are 2 - 5, quite variable and unequal, with dark tips, 15 – 45 mm long. Flowers are pink or white cream with reddish midveins and a diameter of 20 – 25 mm. They bloom in mid Spring. Fruits are club shaped, dark red, about 20 mm long, and contain little brown seeds.

Distribution

This species is widespread throughout central Mexico, at an elevation of 100–2,700 metres (330–8,860 ft) above sea level. Its status is listed as “Least Concern” by the IUCN Red List.[1]

Cultivation

Mammillaria magnimamma can tolerate temperatures down to 1 °C (34 °F), so in temperate zones may be placed outside during the summer months, but in winter requires protection from frost and inclement weather. It needs to be grown in a well-drained medium in full sun. It has gained the Royal Horticultural Society’s Award of Garden Merit.[2][3]

  • Fruit of Mammillaria magnimamma
  • Fruit of Mammillaria magnimamma

References
  1. "Mammillaria magnimamma". IUCN Red List of Threatened Species. Retrieved 3 April 2018.
  2. "RHS Plantfinder - Mammillaria magnimamma". Retrieved 3 April 2018.
  3. "AGM Plants - Ornamental" (PDF). Royal Horticultural Society. July 2017. p. 63. Retrieved 3 April 2018.
  • Mallillarias.net
  • N. L. Britton, J. N. Rose: The Cactaceae. Descriptions and Illustrations of Plants of the Cactus Family. Band IV, The Carnegie Institution of Washington, Washington 1923, S. 41
  • Guide
  • Desert -tropical
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