Parodia scopa
| Parodia scopa | |
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| P. scopa (Les Chatfield) | |
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| Species: | P. scopa
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| Binomial name | |
| 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]
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
- ^ RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN 978-1405332965.
- ^ "Notocactus scopa". Old Cactuspedia. Retrieved 23 July 2013.
- ^ "Parodia scopa subsp. scopa". Royal Horticultural Society. Retrieved 25 January 2021.
- ^ "AGM Plants - Ornamental" (PDF). Royal Horticultural Society. July 2017. p. 72. Retrieved 17 April 2018.
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