Parodia scopa

Parodia scopa (syn. Notocactus scopa), the silver ball cactus, is a species of flowering plant in the cactus family Cactaceae, native to upland southern Brazil and Uruguay. It is a ball- or cylinder-shaped cactus growing to 5–50 cm (2–20 in) tall by 10 cm (4 in) broad, with a spiny, woolly crown and pale yellow flowers in summer.[1]

Parodia scopa
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Cactaceae
Subfamily: Cactoideae
Genus: Parodia
Species:
P. scopa
Binomial name
Parodia scopa
(Spreng.) N.P.Taylor

The specific epithet scopa means "broom" and refers to the long spines. The species was transferred from Notocactus to Parodia in 1997 by David Hunt.[2]

In cultivation it requires a minimum temperature of 10 °C (50 °F), therefore in temperate regions it must be grown under glass or as a houseplant.

The subspecies P. scopa subsp. scopa has gained the Royal Horticultural Society's Award of Garden Merit.[3][4]

References

  1. RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN 978-1405332965.
  2. "Notocactus scopa". Old Cactuspedia. Retrieved 23 July 2013.
  3. "Parodia scopa subsp. scopa". Royal Horticultural Society. Retrieved 25 January 2021.
  4. "AGM Plants - Ornamental" (PDF). Royal Horticultural Society. July 2017. p. 72. Retrieved 17 April 2018.


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