Myrtillocactus geometrizans

Myrtillocactus geometrizans (bilberry cactus, whortleberry cactus or blue candle) is a species of cactus in the genus Myrtillocactus, native to central and northern Mexico.[1]

Myrtillocactus geometrizans
Young cultivated plant
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Core eudicots
Order:
Caryophyllales
Family:
Cactaceae
Subfamily:
Cactoideae
Tribe:
Pachycereeae
Genus:
Myrtillocactus
Species:
M. geometrizans
Binomial name
Myrtillocactus geometrizans
(Mart.) Console

Description

Myrtillocactus geometrizans is a large shrubby cactus growing to 4–5 m tall, with candelabra-like branching on mature plants. The individual stems are 6–10 cm diameter, with five (occasionally six) ribs, with areoles spaced 1.5–3 cm apart. The flowers are creamy white, 2–2.5 cm diameter. The fruit is an edible dark purple berry 1–2 cm diameter, superficially resembling Vaccinium myrtillus (Bilberry or Whortleberry) fruit; both the scientific and English names derive from this resemblance.[2]

Cultivation

It is a popular species in cultivation, where young plants commonly remain unbranched for many years. The fruit is edible, and sold for consumption in Mexico.[2]

The Bilberry Cactus is fast growing, and is often used as grafting stock because of this. With favourable conditions it can reach heights of up to 15 feet.[3]

The fukurokuyuzinboku cultivar, commonly known as "Titty Cactus" or "Breast Cactus," has unusually plump ribs shaped like human breasts.[4]

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References
  1. Germplasm Resources Information Network: Myrtillocactus geometrizans Archived 2012-06-14 at the Wayback Machine
  2. Huxley, A., ed. (1992). New RHS Dictionary of Gardening. Macmillan ISBN 0-333-47494-5.
  3. "Blue Candle, Whortleberry Cactus (Myrtillocactus geometrizans)". www.desert-tropicals.com.
  4. "Myrtillocactus geometrizans 'Fukurokuryuzinboku' – Breast Cactus". World of Succulents. December 14, 2017. Retrieved September 14, 2019.
Myrtillocactus geometrizans in UNAM Botanical Garden, Mexico City.
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