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Echinocactus acanthodes var. rostii (Britton & Rose) Munz
Man. S. Calif. Bot. [Munz] 328. 1935 [5 Apr 1935] et: .T.Marshall

= Ferocactus acanthodes var. rostii (Britton & Rose) W.T.Marshall
Cactaceae (Berlin) 148. 1941

Accepted Scientific Name: Ferocactus cylindraceus (Engelm.) Orcutt
Cactography 1926(1): 5. Orcutt

Echinocactus acanthodes var. rostii (Ferocactus acanthodes var. rostii) Photo by: Valentino Vallicelli
The spines are more flexible than in other subspecies, flattened, annulate, pungent, either straight or curved at apex, perhaps never hooked, usually yellow but sometimes reddish on young plants but also turning yellow in age.


See all synonyms of Ferocactus cylindraceus
Accepted name in llifle Database:
Ferocactus cylindraceus (Engelm.) Orcutt
Cactography 1926(1): 5.
Synonymy: 16 Accepted name in llifle Database:
Ferocactus cylindraceus subs. eastwoodiae (L.D.Benson) N.P.Taylor
Cactaceae Syst. Init. 14: 16. 2002 [Oct 2002]
Synonymy: 4 Accepted name in llifle Database:
Ferocactus cylindraceus subs. lecontei (Engelm.) N.P.Taylor
Cactaceae Consensus Init. 6: 16. 1998
Synonymy: 7 Accepted name in llifle Database:
Ferocactus cylindraceus var. tortulispinus (H.E.Gates) Bravo
Cact. Suc. Mex. 25: 65. 1980
Synonymy: 5

Common Names include:
ENGLISH: Golden Spined Barrel Cactus

Subspecies, varieties, forms and cultivars of plants belonging to the Ferocactus cylindraceus group

  • Ferocactus acanthodes (Lem.) Britton & Rose: Plants with a central spine 7-15 cm in length, they usually inhabits the 50-700 m elevational range.
    (Rejected name same as Feroctus cylindraceus)
  • Ferocactus acanthodes f. albispinus hort.
  • Ferocactus acanthodes var. rostii (Britton & Rose) W.T.Marshall: has columnar stems up to 3 m high and 30 cm in diameter. It is similar to F. acanthodes, but the stem is thinner and the spines are more curved and blanch to golden in maturity. Distribution: Texas and California.
  • Ferocactus acanthodes f. variegatus hort.
  • Ferocactus cylindraceus (Engelm.) Orcutt: Colourfull barrel cactus forming in age a mound of thorns and then a narrow column up to 2m tall, with attractive curved spines that partly obscure the green stem. The spine colour is red but also yellow or pale grey. Distribution: southern California, southwestern Arizona, northern Baja California, and northwestern Sonora.
  • Ferocactus cylindraceus subs. eastwoodiae (L.D.Benson) N.P.Taylor: Plants solitary, short to tall cylindrical up to 3 m high and 30 cmin diameter. Spines dense, partly obscuring the stems, yellowish to straw colored. Distribution: restricted to central Arizona and the Grand Canyon.
  • Ferocactus cylindraceus var. hertrichii (Weinberg) hort.: Usually unbranched forming a single column up to 2 m tall and 30cm in diameter. It has a large central spine and three auxiliary centrals form a crucifix shape.
  • Ferocactus cylindraceus subs. lecontei (Engelm.) N.P.Taylor: Plant with untwisted non-hooked central spines 5-7 cm in length often closely pressed to the stem; Distribution: southern Nevada, southwestern Utah, southern California, and much of Arizona. Grows at 700-1500 m in elevation.
  • Ferocactus cylindraceus var. tortulispinus (H.E.Gates) Bravo: It has much shorter stems, often with flattened tips. the spines are very twisted gray. Distribution: northern Baja California.

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