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Opuntia pottsii Salm-Dyck
Cact. Hort. Dyck. (1849) 236 236 1849.
Family: CACTACEAE

Accepted Scientific Name: Opuntia macrorhiza subs. pottsii (Salm-Dyck) U.Guzmán & Mandujano
Cactaceae Syst. Init. 16: 18 18 2003.

Opuntia pottsii (Opuntia macrorhiza subs. pottsii) Photo by: Cactus Art
Plant collector by David Van Langen, Locality: Near Midland Texas USA. Notes: Plants from this population have long tuberous roots and are covered in spines, they are really very nice!! they are very cold hardy and stays fairly small and compact.

Synonyms:

See all synonyms of Opuntia macrorhiza
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Accepted name in llifle Database:
Opuntia macrorhiza Engelm.
Boston J. Nat. Hist. 6: 206. 1850
Synonymy: 12 Accepted name in llifle Database:
Opuntia macrorhiza subs. potosina (Hern.-Valencia) U.Guzmán & Mandujano
Cactaceae Syst. Init. 16: 18 18 2003.
Synonymy: 2 Accepted name in llifle Database:
Opuntia macrorhiza subs. pottsii (Salm-Dyck) U.Guzmán & Mandujano
Cactaceae Syst. Init. 16: 18 18 2003.
Synonymy: 11
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Common Names include:
ENGLISH: Potts prickly pear, Potts pricklypear cactus

Subspecies, varieties, forms and cultivars of plants belonging to the Opuntia macrorhiza group

  • Opuntia macrorhiza Engelm.: has only moderately glaucous stem segments that may reach 10 cm in length and diameter and basically yellow flowers.
  • Opuntia macrorhiza subs. potosina (Hern.-Valencia) U.Guzmán & Mandujano
  • Opuntia macrorhiza subs. pottsii (Salm-Dyck) U.Guzmán & Mandujano: has very glaucous compact stem segments reaching 5-6 cm in length and diameter, longer than wide, and distinctly stipitate. It is easily distinguished from other varieties of O. macrorhiza by its red flowers (as opposed to yellow), and very slender spines.
  • Opuntia pottsii var. montana n.n.: (subsp. pottsii) Joints mostly wider than long. Spines usually white. Fruit mostly chunky and short, usually pinkish. Distribution: Areas of conifer or oak woodland above 1,800 m, occasional in grasslands at lower elevations.


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